SERVICE MANUAL

BAS-311E,311EL
BAS-326E,326EL

Please read this manual before making any adjustments.

PROGRAMMABLE ELECTRONIC PATTERN SEWER

WITH CYLINDER BED
This service manual is intended for BAS-311E, 311EL and 326E; be sure to read the BAS-311E, 311EL,
and 326E, 326EL instruction manuals before this manual.
Carefully read the “SAFETY INSTRUCTIONS” below and the whole of this manual to understand this
product before you start maintenance.
As a result of research and improvements regarding this product, some details of this manual may not be
the same as those for the product you purchased.
If you have any questions regarding this product, please contact a Brother dealer.

SAFETY INSTRUCTIONS
z Safety indications and their meanings

This instruction manual and the indications and symbols that are used on the machine itself are provided in
order to ensure safe operation of this machine and to prevent accidents and injury to yourself or other
people. The meanings of these indications and symbols are given below.

Indications

The instructions which follow this term indicate situations where failure to
DANGER follow the instructions will almost certainly result in death or severe injury.

The instructions which follow this term indicate situations where failure to
CAUTION follow the instructions could cause injury when using the machine or physical
damage to equipment and surroundings.

Symbols
................. This symbol ( ) indicates something that you should be careful of. The picture
inside the triangle indicates the nature of the caution that must be taken.
(For example, the symbol at left means "beware of injury".)

................. This symbol ( ) indicates something that you must not do.

................. This symbol ( ) indicates something that you must do. The picture inside the
circle indicates the nature of the thing that must be done.
(For example, the symbol at left means "you must make the ground connection".)

BAS-311E.311EL.326E.326EL i
x Notes on safety

DANGER
Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from
the wall outlet before opening the face plate of the control box.
Touching areas where high voltages are present can result in severe injury.

CAUTION
Installation
Machine installation should only be carried Be sure to wear protective goggles and
out by a qualified technician. gloves when handling the lubricating oil and
grease, so that they do not get into your eyes
Contact your Brother dealer or a qualified or onto your skin, otherwise inflammation can
electrician for any electrical work that may result.
need to be done. Furthermore, do not drink the oil or eat the
The sewing machine weights more than grease under any circumstances, as they can
BAS-311E60kg,BAS-311EL·326E· cause vomiting and diarrhoea.
326EL65kg. The installation should be car- Keep the oil out of the reach of children.
ried out by two or more people. Avoid setting up the sewing machine near
Do not connect the power cord until instal- sources of strong electrical noise such as
lation is complete, otherwise the machine high-frequency welding equipment.
may operate if the start switch is pressed If this precaution is not taken, incorrect ma-
by mistake, which could result in injury. chine operation may re

Be sure to connect the ground. If the ground Have two people present to hold the machine
connection is not secure, you run a high risk head with both their hands when tilting it back
of receiving a serious electric shock, and or returning it to its original position.
problems with correct operation may also
occur.

Sewing

This sewing machine should only be used Do not touch any of the moving parts or press
by operators who have received the any objects against the machine while sew-
neccessary training in safe use beforehand. ing, as this may result in personal injury or
damage to the machine.
The sewing machine should not be used
for any applications other than sewing. If an error occurs in machine operation, or if
abnormal noises or smells are noticed, im-
Attach all safety devices before using the mediately turn off the power switch. Then
sewing machine. contact your nearese Brother dealer or a
If the machine is used without these devices qualified technician.
attached, injury may result.
If the machine develops a problem, contact
Turn off the power switch at the following your nearest Brother dealer or a qualified
times, otherwise the machine may operate technician.
if the start switch is pressed by mistake,
which could result in injury. If using a work table which has casters, the
casters chould be secured in such a way so
• When not using the machine that they cannot move.
• When leaving the machine unattended

ii BAS-311E.311EL.326E.326EL
 CAUTION
Cleaning

Turn off the power switch before starting any Be sure to wear protective goggles and
cleaning work, otherwise the machine may gloves when handling the lubricating oil and
operate if the start switch is pressed by mis- grease, so that they do not get into your eyes
take, which could result in injury. or onto your skin otherwise inflammation can
result.
Furthermore, do not drink the oil or eat the
grease under any circumstances, as they can
cause vomiting and diarrhoea.
Keep the oil out of the reach of children.

Maintenance and inspection

Maintenance and inspection of the sewing If the power switch and air need to be left on
machine should only be carried out by a when carrying out some adjustment, be ex-
qualified technician. tremely careful to observe all safety precau-
tions.
Ask your Brother dealer or a qualified elec-
trician to carry out any maintenance and Use only the proper replacement parts as
inspection of the electrical system. specified by Brother.
Turn off the power switch and disconnect If any safety devices have been removed, be
the power cord from the wall outlet at the absolutely sure to re-install them to their origi-
following times, otherwise the machine may nal positions and check that they operate
operate if the start switch is pressed by mis- correctly before using the machine.
take, which could result in injury.
Any problems in machine operation which
• When carrying out inspection, adjustment result from unauthorized modifications to the
and maintenance machine will not be covered by the warranty.
• When replacing consumable parts such
as the rotary hook and knife Have two people present to hold the machine
head with both their hands when tilting it back
Disconnect the air hoses from the air sup- or returning it to its original position.
ply and wait for the needle on the pressure
gauge to drop to "0" before carrying out in-
spection, adjustment and repair of any parts
which use the pneumatic equipment.

BAS-311E.311EL.326E.326EL iii
c Warning labels

★The following warning labels appear on the sewing machine.

Please follow the instructions on the labels at all times when using the machine. If the labels have
been removed or are difficult to read, please contact your nearest Brother dealer.

1
Moving parts
may cause injury.
Operate with safety devices.
Turn off main switch before
threading, changing bobbin
and needle, cleaning etc.

Safety devices: Thread take-up cover,

Eye guard, Belt cover,
Finger guard, etc.

2
Hazardous voltage Hochspannung Un voltage non adapté Un voltaje inadecuado
will cause injury. verletzungsgefahr! provoque des blessures. puede provocar las
heridas.
Turn off main Bitte schalten sie den Eteindrel'interrupteur et
switch and wait 5 hauptschalter aus und attendre 5 minutes Apagar el interruptor
minutes before warten sie 5 minuten, avantd' ouvrir le capot principal y esperar 5
opening this cover. bevor sie diese minutos antes de abrir
abdeckung öffnen. esta cubierta.

[BAS-311E]

Belt cover 1
Thread take-up
cover
1

Eye guard
Finger guard

iv BAS-311E.311EL.326E.326EL
Explanation of models
This manual explains three models
•BAS-311E (Solenoid type, Pnevmatic type), 311EL (Pnevmatic type), 326E, 326EL
(Pnevmatic type)
Explanation for individual model is provided by identifying the model name. Check the
model before useing the machine.

INDEX
Chapter 1. Mechanical description ........................................................... 1

1. Needle bar, thread take-up, lower shaft and shuttle hook mechanism ................. 1

2. Work clamp lifting mechanism (1)(2) ....................................................................... 2

3. Feed mechanism (X axis) .......................................................................................... 4

4. Presser foot mechanism (1)(2) .................................................................................. 6

5. Thread trimmer mechanism ..................................................................................... 8

6. Thread nipper (1)(2) when presser foot rises ......................................................... 9

7. Thread wiper (1) (2) .................................................................................................... 10

Chapter 2. Disassembly ............................................................................. 11

1. Covers (1)(2)(3) ........................................................................................................... 11

2. Feed mechanism ........................................................................................................ 13

3. Presser foot mechanism ............................................................................................ 14

4. Needle bar mechanism .............................................................................................. 15

5. Upper shaft mechanism ............................................................................................ 16

6. Feed mechanism (Y axis)(1)(2)(3) ............................................................................. 17

7. Feed mechanism (X axis)(1)(2) ................................................................................. 20

8. Lower shaft mechanism ............................................................................................ 22

9. Work clamp lifter (Solenoid type) ............................................................................. 23

10. Thread nipper mechanism ........................................................................................ 24

11. Thread trimmer mechanism .................................................................................... 25

Chapter 3. Assembly .................................................................................. 26

1. Thread trimmer mechanism (1) ................................................................................ 26

2. Thread nipper mechanism ........................................................................................ 27

BAS-311E.311EL.326E.326EL
 3. Work clamp lifter mechanism .................................................................................. 29

4. Feed mechanism (X axis) .......................................................................................... 31

5. Feed mechanism (Y axis) .......................................................................................... 35

6. Upper shaft mechanism ............................................................................................ 39

7. Needle bar mechanism .............................................................................................. 40

8. Presser foot mechanism ............................................................................................ 41

9. Lower shaft mechanism (1) ....................................................................................... 43

10. Lower shaft (Rotary hook) (2) .................................................................................... 44

11. Thread trimmer mechanism ..................................................................................... 45

12. Feed guide mechanism (Home position adjustment: X ) ....................................... 46

13. Covers ......................................................................................................................... 49

Chapter 4. Adjustments ............................................................................. 51

1. Adjusting the needle bar height adjustment ........................................................... 51

2. Adjusting the needle bar lift amount ........................................................................ 51

3. Adjusting the needle clearance................................................................................. 52

4. Adjusting the driver needle guard ............................................................................ 52

5. Adjusting the shuttle race thread guide ................................................................... 52

6. Adjusting the two-step work clamp lift amount ...................................................... 53

7. Adjusting the movable knife ..................................................................................... 55

8. Adjusting the lowest point of the presser foot ........................................................ 58

9. Changing the presser foot lift ................................................................................... 59

10. Wiper adjustment....................................................................................................... 60

11. Adjusting the home position ..................................................................................... 61

12. Adjusting the tension of the timing belt .................................................................. 64

13. Adjusting backlashes ................................................................................................. 66

14. Adjusting the driving lever stopper position ........................................................... 67

15. Adjusting the thread trimmer driving lever position .............................................. 67

16. Work clamp lift components for manual operation (Solenoid type) ..................... 68

17. Adjusting the presser foot height ............................................................................. 68

18. Adjusting the needle up step position ..................................................................... 69

BAS-311E.311EL.326E.326EL
Chapter 5. How to make up the work clamp ........................................... 70

1. How to make up clamping type work clamp ........................................................... 70

2. How to make up cassette type work clamp ............................................................. 71

Chapter 6. Power supply and electrical parts adjustment ..................... 73

1. Precautions at the time of adjustment ..................................................................... 73

2. Components inside the control box ......................................................................... 73

3. Fuse explanation ........................................................................................................ 74

4. Connectors .................................................................................................................. 75

5. DIP switches ............................................................................................................... 82

6. Changing special functions using the memory switches ....................................... 86

7. Checking the input sensor and DIP switch input ..................................................... 90

8. Checking the input voltage ........................................................................................ 91

9. Clearing all memory settings .................................................................................... 91

10. Confirming software version .................................................................................... 92

11. Error codes ................................................................................................................. 93

Chapter 7. Trouble shooting ..................................................................... 95

Flowchart .................................................................................................................... 95

Problem solution and measures ............................................................................... 101

Chapter 8. 1. Gauge parts list according to subclasses .......................... 112

Chapter 9. Gauge parts list ........................................................................ 113

Chapter 10. Option parts ............................................................................. 123

Control Block diagram ............................................................................................... 140

BAS-311E.311EL.326E.326EL
 Chapter 1. Mechanical description

Chapter 1. Mechanical description

1. Needle bar, thread take-up, lower shaft and shuttle hook
mechanism

e
q

i
r !0 o

t
y
u

!1

!2
!3

1. When the machine pulley q rotates in the direction of the arrow, the upper shaft w rotates, then it rotates the thread
take-up crank e.
2. The needle bar crank r, attached to the thread take-up crank e, moves the thread take-up lever t.
3. The needle bar u attached to the needle bar clamp y is moved up and down.
4. When the machine pulley q rotates in the direction of the arrow, the crank rod i attached to the upper shaft w moves
up and down.
5. The crank rod i oscillates the attached rock gear o.
6. The rock gear o oscillates the lower shaft !1 through the lower shaft gear !0. The lower shaft !1 oscillates the attached
driver !2 and inner rotary hook !3 in the shuttle hook mechanism.

BAS-311E.311EL.326E.326EL 1
Chapter 1. Mechanical description

2. Work clamp lifting mechanism (1) (Solenoid type), 311E

q
w

t
y
u

1. When the presser signal is on, the presser solenoid q operates.

2. The plunger w operates in the direction of the arrow and moves link (B) t through link (C) e and link shaft (A) r.
3. Link (B) t presses down the presser plate u through the link shaft (C) y.

i !1

!0
!6 !2

!3
!4

!5

!7

4. When the work clamp plate operates, the slider i and the slider support o are pressed down. When they are pressed,
work clamp lifter lever R. !1 is raised through the slider support shaft !0.
5. The spring !2, the work clamp arm lever (RR) !3 and (F) !4 which are linked to presser bar lifter lever (R) !1 operate in the
direction of the arrow.
6. Work clamp (UN) !5 and presser foot (L) !6 ·(R) !7 are pressed down through work clamp lever (F) !4.

2 BAS-311E.311EL.326E.326EL
 Chapter 1. Mechanical description

Work clamp lifting mechanism (2) 311E, 311EL

(Pneumatictype)
w

e
q

1. When the air cylinder q operates in the direction of the arrow, work clamp arm levers R w and F e also operate in the
direction of the arrow.
2. Work clamp SE r is moved vertically via work clamp arm lever F e.

Work clamp lifting mechanism 326E

w
e q

1. When the air cylinder q operates in the direction of the arrow, work clamp lifter lever D w and lever U e also operate
in the direction of the arrow.
2. Work clamp SE r is moved vertically via knee lifter lifting lever U e.

BAS-311E.311EL.326E.326EL 3
Chapter 1. Mechanical description

3. Feed mechanism (X axis) 311E, 311EL, 326E, 326EL

e

r
w

t q

1. When X-timing pulley A326 w attached to the X-pulse motor q moves, its motion is transmitted to X-timing pulley
B311 r via X-timing belt A311 e.
2. When X-timing pulley B311 r moves, timing pulley A y linked to the X-timing pulley shaft t moves X-timing belt
B311 u left and right.
3. Feed bracket X i secured to X-timing belt B311 u moves via linear guide 311 o in the X direction (left and right).

4 BAS-311E.311EL.326E.326EL
 Chapter 1. Mechanical description

Feed mechanism (Y axis) 311E and 311EL

e
y
q
w
!2

u
!5 i
e o
r !0

t !1
!4 !3

1. The driving gear w attached to the Y-pulse motor q oscillates the idle gear e.
2. When the idle gear e oscillates, the Y-timing belt y moves forward and backward through timing pulley (A)t attached
to Y-pulley shaft (A)r.
3. The belt holder u and the Y-driving shaft holder i which are fixed to the Y-timing belt y operate the Y-driving shaft o.
4. The X-feed shaft support !0 and the X-feed shaft !1 are attached to the Y-driving shaft o. The presser arm assembly !2
is attached to the Y-feed bracket !3.
5. The Y-feed bracket !3 operates in the Y-direction (moves longitudinally) via the Cross roller !4 and the Y-feed guide !5.

Feed mechanism (Y axis) 326E, 326EL

q w

i
r

e
t

!1
y
u
o
!0

1. When the Y-pulse motor q operates, its motion is transmitted to the driving gear r attached to the Y-driving gear shaft
e via the coupling w.
2. The driving gear r is engaged with the rack of the Y-driving shaft t, and the Y-driving shaft t moves back and forth.
3. The work clamp arm assy i is attached to the Y-feed bracket o via X-feed shaft support 326 y attached to the Y-
driving shaft t and the X-feed shaft u.
4. The Y-feed bracket o operates in the Y-direction (back and forth) via cross roller 326 !0 and Y-feed guide 326Y !1.

BAS-311E.311EL.326E.326EL 5
Chapter 1. Mechanical description

4. Presser foot mechanism (1)

e
q
w

1. When the upper shaft q rotates, the stepping work clamp cam w moves eccentrically, and the stepping work clamp
connecting rod e oscillates stepping work clamp arm R r.
2. The oscillation of stepping work clamp arm R r is transmitted to stepping work clamp arm F t, and the stepping link
assy y moves the presser bar lifter u up and down.

6 BAS-311E.311EL.326E.326EL
 Chapter 1. Mechanical description

Presser foot mechanism (2)

e
r

q w

1. When the stepping work clamp signal is on, the stepping solenoid q operates the lifter lever w.
2. The lifter lever w operates the work clamp lifter lever assy r via the work clamp lifter wire e.
Note: When the machine stops, the stepping solenoid q operates, and the presser foot rises as soon as the work clamp
rises. At this time, tension releasing is performed.

BAS-311E.311EL.326E.326EL 7
Chapter 1. Mechanical description

5. Thread trimmer mechanism

q
w

e
r

y u

!1
!0
!2

!3

1. When the thread trimmer signal is on, the thread trimming solenoid q pushes the pushing lever driving lever w.
2. The pushing lever driving lever w pushes the thread trimmer driving lever r in the direction of the arrow, pivoting on
the shoulder screw e. The pushing lever driving lever w slides along the driving lever shaft t.
3. The roller y attached to the thread trimming driving lever r fits into the groove of the thread trimmer cam u, and
operates the thread trimmer rod i.
4. As the thread trimmer lever o is linked to the thread trimmer rod i, the connecting rod lever !0 operates.
5. When the thread trimmer connecting rod !1 linked to the connecting rod lever !0 operates, the fixed knife !2 and the
movable knife !3 fit into each other and perform thread trimming.

8 BAS-311E.311EL.326E.326EL
 Chapter 1. Mechanical description

6. Thread nipper (1) when presser foot rises

r
e

q w

1. When the machine stops, the stepping solenoid q operates, and the presser foot rises as soon as the work clamp rises.
2. The stepping solenoid q operates the lifter lever w, and the work clamp lifter lever assy e via the work clamp lifter
wire r.

Thread nipper (2) during thread trimming

q

t
y

1. When the thread trimming signal is on and the thread trimming solenoid operates, the thread trimmer driving lever q
is pushed in the direction of the arrow.
2. The thread trimmer driving lever q moves the tension release lever e via the tension release rod w.
3. The tension release lever e pushes the tension release bar r.
4. The end of the tension release bar r pushes the pin t and the tension disk opens y.

BAS-311E.311EL.326E.326EL 9
Chapter 1. Mechanical description

7. Thread wiper (1) (vertical wiper: standard)

1. After thread trimming, the thread wiper signal is on and the thread wiper solenoid q operates.
2. When the plunger w operates in the direction of the arrow, the thread wiper crank assembly r attached to the end of
the thread wiper connecting rod e operates.
3. The wiper t attached to the thread wiper crank assembly r operates.

Thread wiper (2) (horizontal wiper: optional)

w
e

1. After thread trimming, the thread wiper signal is on and the thread wiper solenoid q operates.
2. When the plunger w operates in the direction of the arrow, T-wiper connecting rod assy S e also operates.
3. Thread wiper A r attached to T-wiper connecting rod assy e operates.

10 BAS-311E.311EL.326E.326EL
 Chapter 2. Disassembly

Chapter 2. Disassembly
1. Covers (1) 311E
q

e
u
t

!1

!0
o !0

!2 o

i !3

1. Remove the screw, the top cover q, the belt covers w and the rear cover e.
2. Loosen shoulder screw r and remove the work clamp lifter connect rod t.
3. Remove the plunger pin u from the plunger y.
4. Remove the screw and the face plate i.
5. Remove the screw and the X-feed bracket covers o on the right and left and cover spacer !0 Y-feed bracket cover !1.
6. Remove the screw and XY-feed base covers (L) !2 and (R) !3.

BAS-311E.311EL.326E.326EL 11
Chapter 2. Disassembly

Covers (2) 311EL

!1
q

e
i
y u
o

u
r

t
o
!0

1. Remove the screws, the top cover q, the belt cover w, and the frame side cover e.
2. Remove the plunger pin t from the plunger r.
3. Remove the screws, and the faceplate y.
4. Remove the screws, and X-axis feed bracket covers L and R u and Y- feed bracket cover i.
5. Loosen the screws, and remove the left and right feed bracket cover supports o in the direction of the arrow.
6. Remove the screws, and X-Y feed bracket covers L !0 and R !1.

Covers (3) 326E, 326EL

!1
q

u e
y i
o

i
r

t
o
!0

1. Remove the screws, the top cover q, the belt cover w, and the frame side cover e.
2. Remove the plunger pin t from the plunger r.
3. Remove the screws, and the faceplate y.
4. Remove the screws, and the bellows assy u.
5. Remove the screws and X-axis feed bracket cover assemblies L and R i.
6. Loosen the screws, and remove the left and right feed bracket cover supports o in the direction of the arrow.
7. Remove the screws, and X-Y feed bracket covers L !0 and R !1.

12 BAS-311E.311EL.326E.326EL
 Chapter 2. Disassembly

2. Feed mechanism

e r

1. Remove the screw, the needle q and the presser foot w and finger guard e.
2. Remove the bolt and the work clamp r.
3. Remove the screw, the feed plate t and the needle sub plate y.

BAS-311E.311EL.326E.326EL 13
Chapter 2. Disassembly

3. Presser foot mechanism

q u

!1
r

t
i
!6

!5

!2 o

!0 !4

!3

1. Loosen the nut q, remove the adjust screw w, the spring guide e, and the spring r by lifting them from above of the
machine, and remove the washer t.
2. Loosen the bolt u of stepping work clamp arm R y, remove the shoulder screw i and the retaining ring !0 of the
presser bar lifter o from the faceplate, and then remove stepping work clamp arm F !1 and stepping link assy !2.
3. Push up the presser bar !3, and separate it from the presser bar bush !4.
(The presser bar lifter o, the cushion !5, and the needle bar clamp !6 will come off as a set.)

14 BAS-311E.311EL.326E.326EL
 Chapter 2. Disassembly

4. Needle bar mechanism

y r

u
r

i
!2
!1

!0

!5
!2
!3
!4 !7 !6 !3

1. Remove the rubber cap q.

2. Remove the needle bar thread guide w from the needle bar e.
3. Loosen the screw of the needle bar clamp r, and remove the needle bar e through the machine top.
4. Remove the needle bar clamp r from the thread take-up lever t.
(Remove the needle bar guide slide block u from the needle bar guide y.)
5. Remove the rubber cap i, loosen the set screw o, and remove the thread take-up support stud !0.
6. Remove the oil cap !1, loosen the set screw !3 of the counter weight !2, and remove the thread take-up lever !4.
(The thread take-up assembly !5 will come off.)
7. Remove the rubber cap !6, the screw !7, and the needle bar guide y.
(Do not remove them if possible to prevent the machine from overheating due to needle bar rubbing.)

BAS-311E.311EL.326E.326EL 15
Chapter 2. Disassembly

5. Upper shaft mechanism

w t

y
r u

o
i
!0
e

!2

!0’
r
!1

r !7
!5 q
!1
!2

!6
r
!4

!3

1. Loosen the screw w and the set screw e of thread take-up crank q.
(The screw w should be loosened until its end comes off the upper shaft r.)
2. Remove the screw t, and the thread trimming solenoid y.
3. Remove the screw u, and the wick support i.
4. Remove the screw o, and the crank rod !0.
(At this time, lower the crank rod !0’ in the direction of the arrow.)
5. Loosen the set screws of the stepping work clamp cam !1 and the thread trimmer cam !2.
6. Remove the V belt !3, loosen the set screw !4, and remove the pulley !5.
7. Remove the screw !6 and the synchronizer !7.
8. Remove the upper shaft r in the direction of the arrow.
After that, remove the thread take-up crank q, the stepping work clamp cam !1, and the thread trimmer cam !2 from
the upper shaft r, in this order.

16 BAS-311E.311EL.326E.326EL
 Chapter 2. Disassembly

6. Feed mechanism (Y axis) (1) 311E and 311EL

r
t

1. Loosen the set screw and remove the X-feed shaft q.

2. Remove the screws and the work clamp arm w.
3. Tilt the machine head until it stops.
4. Remove the bolt of the Y-driving shaft holder e, the Y-driving shaft r and the X-feed shaft support t.
5. Raise the machine head.

BAS-311E.311EL.326E.326EL 17
Chapter 2. Disassembly

Feed mechanism (Y axis) (2)

q w
w
e

q
r

t
!6

!3 !5

y !2
!4

!6

u
i !8
o !9
!1
!0
!7

1. Remove the bolts, the Y-feed guide assembly q, the cross roller w, and the Y-feed bracket e.
2. Remove the screws, the X-feed bracket r, and the linear guide t.
3. Remove the bolts and the Y-driving pulse motor bracket y.
4. Remove the bolts and the Y-pulse motor u.
5. Loosen the set screws of the idle gear i and timing pulley A o, and remove Y-pulley shaft A !0 along with the retaining
rings. (The idle gear i, timing pulley A o, and the ball bearing !1 will come off.)
6. Loosen the set screw of timing pulley A !2, and remove the two retaining rings and Y-pulley shaft B !3.
7. Remove the bolts, the Y-driving pulse motor bracket !4, timing pulley A !2, the Y-timing belt !5, and micro bearings !6.
* To remove the Y-driving shaft holder !7, remove the bolt, the belt holder !8, the timing belt spacer, !9, and the Y-
timing belt !5.

18 BAS-311E.311EL.326E.326EL
 Chapter 2. Disassembly

Feed mechanism (Y axis) (3) 326E, 326E

r
w

e
q

t
y
!0

!2

!1 o

!3

!4

1. Secure the slider support shaft w of the work clamp assy q using the supplied set screw e.
(To prevent the slider support shaft w and the slider r from suddenly protruding, be sure to do this job.)
2. Loosen the set screw, and remove the X-feed shaft t.
3. Remove the two bolts, and the work clamp assy q.
4. Remove the two bolts, and X-feed shaft support 326 y.
5. Remove the four bolts, the Y-feed pulse motor bracket u, and the Y-driving shaft i.
6. Remove the two bolts, and Y-feed bracket cover F o.
7. Remove the four bolts, Y-feed guide assy 326 !0, cross roller 326 !1, and the Y-feed bracket !2.
8. Remove the eight set screws, the X-feed bracket !3, and the linear guide !4.

BAS-311E.311EL.326E.326EL 19
Chapter 2. Disassembly

7. Feed mechanism (X axis) (1) 311E

r y
w

!4
y !3

!1

!0 !6
i
q t
o
!5

i !2
!0
u

1. Remove the rubber cap q.

2. Loosen the set screws of X-timing pulley B311 w and timing pulley A e, and remove the X-timing pulley shaft t and
retaining ring r. (X-timing pulley B311 w and timing pulley A e, and the two ball bearings y will come off.)
3. Loosen the set screw of timing pulley B u, and remove the retaining ring i and X-pulley shaft B o.
(Timing pulley B u, X-timing belt B311 !0, and the two ball bearings !1 will come off.)
4. Remove the bolts !2 from adjustment holes, and separate X-pulley base B !3.
5. To remove the X-feed bracket !4, remove the eight set screws, the belt holder !5, the timing belt spacer !6, and X-timing
belt B311 !0.

20 BAS-311E.311EL.326E.326EL
 Chapter 2. Disassembly

Feed mechanism (X axis) (2) 311EL and 326E, 326EL

@3

o
!1
!0
!3
!6 !2

!9
!7 !5 !8 y
!4
u
r q
w @6
!7 e @0
r @2
@5
@1 @2
@4 t
i

1. Remove the bolt w and the washer e of X-pulley bracket L q, and the adjust bolt r.
2. Remove the bolt y and the washer u of X-pulley bracket R t, and the adjust bolt i.
3. Remove X-timing belt A326 o.
4. Loosen the set screw !1 of X-timing pulley B326 !0, and the set screw !3 of timing pulley A !2, and remove the back
retaining ring !5 of the X-timing pulley shaft !4, and pull out the X-timing pulley shaft !4 in the direction of the arrow.
(At this time, timing pulley !2, X-timing belt B326 !6, X-timing pulley B326 !0, X-timing belt A326 o, and the two micro
bearings !7 will come off.)
5. Loosen the set screw !9 of timing pulley B !8, remove the front retaining ring @1 of X-pulley shaft R @0, and pull out X-
pulley shaft R @0 in the direction of the arrow.
(At this time, X-timing belt B326 !6, timing pulley B !8, and the two micro bearings @2 will come off.)
6. Remove the bolt @4 on the back of the X-feed bracket @3, the belt holder @5, the timing belt spacer @6, and X-timing belt
B326 !6.

BAS-311E.311EL.326E.326EL 21
Chapter 2. Disassembly

8. Lower shaft mechanism

t y

r
w
q

!2
!1 !0

1. Tilt the machine head until it stops.

2. Remove the bobbin case q and the shuttle hook w.
3. Loosen the bolt e, and remove the driver r and the retaining ring t.
4. Loosen the set screw of the set screw collar y, and remove the lower shaft assembly u from the rear of the machine.
5. Loosen the set screw i.
6. Loosen the set screw of the set screw collar o, and remove the rock gear shaft !0 from the rear of the machine.
7. Remove the set screw collar o, the rock gear !1, and the crank rod !2.
8. Raise the machine head.

22 BAS-311E.311EL.326E.326EL
 Chapter 2. Disassembly

9. Work clamp lifter (Solenoid type)

o e
!0
r

u y
i
!0
i
t

q
r
!2

!1 u

!3

!5
!4

1. Remove the spring q.

2. Remove the screw w, and the presser solenoid e from the plunger r by lifting the latter from above.
Be sure to hold the plunger r securely so that it does not fall.
3. Remove the snap pin t and the rod y.
4. Loosen the set screw u, and remove the snap pin i, link shaft A o, and the washer !0.
5. Remove the rubber cap !1, the snap pin !2, and link shaft C !3.
Be sure to hold the presser plate !4 and the presser bar lifter lever rubber !5 so that they do not fall.
6. Remove all parts connected to the plunger r by lifting them upward.

BAS-311E.311EL.326E.326EL 23
Chapter 2. Disassembly

10. Thread nipper mechanism

r

u
r
t

y
i
e w
q

t
r

o
!2

!3
!1

!0

1. Remove the set screw, the thread tension q, the pin w, and the tension release bar e.
2. Remove the shoulder screw r and the tension release rod t.
3. Remove the screw and the tension release assembly y.
4. Remove the screw, the cable support u, and the cord holder i.
5. Tilt the machine head until it stops.
6. Remove the extension spring o and the SOL oil pan !0.
7. Remove the screw and the wire support !1.
8. Loosen the bolt, and remove the work clamp lifter lever !2.
9. Loosen the set screw of the work clamp lifter lever !2, and remove the flanged shaft !3.
10.Return the machine head to its original position.

24 BAS-311E.311EL.326E.326EL
 Chapter 2. Disassembly

11. Thread trimmer mechanism

q !0

w !2
u
o

i
@1

r
!1

@2

!6

!9

!4
@0 !3
!7

!7

!5

!8

1. Remove the screws q, the flat screws w and the needle plate e.
2. Remove the rubber cap r, loosen the set screw t, and remove the connecting rod lever shaft y.
3. Remove the oil cap u, loosen the set screw i, and remove the retaining ring o.
4. Remove the driving lever shaft !0 by pulling it in the direction of the arrow. Then remove the cushion !1 and the spring
!2 from the shaft.
5. Tilt the machine head until it stops.
6. Remove the thread trimmer return spring !3 and the spring hook !4.
7. Remove the nut !5, the shoulder screw !6, and the washer !7.
8. Loosen the set screw !8, and remove the lever shaft !9 and the thread trimmer lever @0.
9. Return the machine head to its original position, and remove the connecting rod lever @1 and the thread trimmer
driving lever @2.

BAS-311E.311EL.326E.326EL 25
Chapter 3. Assembly

Chapter 3. Assembly
1. Thread trimmer mechanism (1)

q @7
@3
w @6
u
t

@5

y
i

o @4
r !1

!5 !0

!5 !9
!3
r t

@1
!2 @2
!6
i
y
!8
!7

e
@0
!4

1. Insert the driving lever shaft q into the machine. Place the spring w, the thread trimmer driving lever e, and the
cushion r on the shaft in this order.
2. Put the retaining rings t on the shaft. Press the thread trimmer driving lever e against the retaining rings t. Tighten
the set screw y on the screw flat.
3. Attach the oil cap u.
4. Insert the connecting rod lever i into the machine, lightly press the connecting rod lever shaft o against the former,
then secure them using the set screw !0.
5. Attach the rubber cap !1.
6. Tilt the machine head until it stops.
7. Pass the lever shaft !3 with the washer and the retaining ring, through the thread trimmer lever !2, and tighten the set
screw !4 on the screw flat.
8. Attach the thread trimmer rod !5 and the connecting rod lever i to the thread trimmer lever !2 using the washer !6,
plain washer 4.37 (t=0.8) !7, washer 4.76 (t=0.5) !8, the stud screw !9, and the nut @0.
9. Attach the spring hook @1 to the inside of the machine, and connect the thread trimmer return spring @2 to it.
10.Return the machine head to its original position.
11.Fit the thread cutter connecting rod @3 on connecting lever pin @4 , and install needle plate @5 using the flat screws @6
and screws @7 (First tighten the flat screws @6 and screws @7 ).

26 BAS-311E.311EL.326E.326EL
 Chapter 3. Assembly

2. Thread nipper mechanism

1. Pass the tension release assembly q from the bottom of
the machine to the top.
q

2. Attach the wire support w to the solenoid set plate e

with the bolt r.
3. Temporarily attach the lifter lever t to the shaft of the
stepping solenoid y. At this time, align the end face of
u the lifter lever t with the end face of the stepping sole-
noid y.
4. Attach the SOL oil pan u using the screw.
y 5. Raise the machine head.

Align
t w

e y r
t

6. Attach the cable support i to the machine body.

7. Attach the thread trimmer rod o to the tension release

assembly q with the shoulder screw !0.
!1 8. Attach the other end of the tension release rod o to the
!0
thread trimmer driving lever !1 using the shoulder screw
!0.

!0
o

q
!3

BAS-311E.311EL.326E.326EL 27
Chapter 3. Assembly

9. Attach the tension release assembly q to the machine

body with the screw !2.

10.Attach the cord holder !3 to the machine body.

!2

11.Attach the tension release bar !4 , the pin !5 and the

thread tension assembly !6 to the machine. Fit the set
screw !7 in the groove of the thread tension assembly
!6, then tighten it.

!7

!4 !5
!6

12.Turn the stepping solenoid !8 fully in the direction of

@1 the arrow. Move the lifter lever t so that there is no
!8 clearance (0 mm) between work clamp lifter lever !9
and the presser bar clamp @0, remove the slack from the
@0 work clamp lifter wire @1, and tighten the bolt @2.

!9

@2

@0

!9

28 BAS-311E.311EL.326E.326EL
 Chapter 3. Assembly

3. Work clamp lifter mechanism

!0 @0 @0 @1
o
!1
@3
!2
!7 e e
u @2
y
@4 !4
t

i r

!3

!3
q
w
@0
!5
!6 i
!7
!8
!7
!9

!4
79.0mm
!1

1. Attach the presser plate q to the presser bar lifter lever rubber w, and insert them from the bottom of the arm. Insert
the parts r linked to the plunger e from the top of the arm, and fit them on link shaft C t, link B y, and the presser
plate q.
2. Fit the snap pins u on both ends of link shaft C t.
3. Insert link shaft A i into the machine, and pass it through the washer o and link A !0.
4. Fit the snap pins !1 on both sides of link shaft A i and outside the washer o.
5. Attach the presser solenoid !2 to the top of the arm so as to cover the plunger e. Secure link shaft A i using the set
screw !4 so that link B y is centered in the bush !3.
6. Slide the presser solenoid !5 until it has reached 19.0 mm from the end of the arm, where the plunger e easily moves,
and tighten the screw !6.
7. Attach the spring !7 to link shaft B !8 and the pin !9.
8. Hang the rod @0 on the shoulder screw @1, and insert the former into link shaft B @2, and secure it using the snap pins @3.
9. Attach the rubber cap @4.

BAS-311E.311EL.326E.326EL 29
Chapter 3. Assembly

Make sure that work clamp easily moves up and down, and apply grease to sliding portions to assemble parts.
1. Sliding portions of link shaft C q and link B w.
t 2. Sliding portions of link shaft B e, link B w, link A r, and
link C t.
3. Sliding portions of link shaft A y and link A r.
4. Sliding portions of link shaft D u, link C t, and plunger
i i.
u

i
u
w
q

1. Sliding portion of the work clamp q (Apply small

amount of grease).
2. Sliding portions of the work clamp arm lever shaft w
and work clamp arm levers R and L e.

w
q

30 BAS-311E.311EL.326E.326EL
 Chapter 3. Assembly

4. Feed mechanism (X axis) 311E

1. Fit the ball bearings q on X-pulley bracket L, and pass
the X-timing pulley shaft w from the front of X-pulley
y q bracket L through timing pulley A e, X-timing belt B311
u r, X-timing pulley B326 t, and X-timing belt A326 y.
t
Place the two retaining rings u on both ends of the X-
timing pulley shaft w by pressing them against the ball
bearings q, adjust timing pulley A e so that there is no
looseness in the X-timing pulley shaft w, and secure it
using the set screws.

w r

2. Secure X-timing pulley B326 t on the screw flat using

the set screw.

e t

3. Loop the X-timing belt B i around timing pulley (B) !1.

o Pass X-pulley shaft (B) !0 through timing pulley (B) !1,
i and the micro bearing !2. Secure them to the X-pulley
!2 !3 base B o using the retaining ring !3.

!0

!3
!2
!1

4. Place timing pulley (B) !1 at the middle of X-pulley base

!4 (B) o, then tighten the two set screws !4.

!1

BAS-311E.311EL.326E.326EL 31
Chapter 3. Assembly

5. Attach the linear guide !5, the X-feed bracket !6, and the
X-feed guide !7 to the bed using the three bolts !8.
Note: Adjust the X-feed guide !7 so that the X-feed
!6
bracket !6 can easily move left or right.
!7
!7 Adjustment procedure
1. Position the front linear guide !9 in the reference area
for installation on the front of the bed, and secure it
using the six bolts @0 and six washers.
2. Attach the rear linear guide @1 to the rear of the bed
using the five bolts @2 and five washers. Keep in
!5 mind that the linear guide can move easily.
Reference 3. Attach the X-feed bracket !6 to the linear guide !5 us-
area ing the eight screws.
4. Adjust the rear linear guide @1 so that the X-feed
bracket !6 can easily move left and right, and tighten
the five bolts @2 on the rear linear guide.

5. Place X-timing belt B i between the two timing belt

spacers !9 on the back of the X-feed bracket !6. Align
!6 a rectangular slot of the belt holder !8 with a tooth of
X-timing belt B i. and secure them using the belt @0.
i

!9

!8
@0

6. Move the X-feed bracket !6 to the left end and apply a

load of 9.8N (1 kgf) to the center of the X-timing belt B i.
i Then adjust the X-timing belt B i with the adjust screw
@1 to produce a deflection of 3 mm.

!6

9.8N
(1kgf) 3mm
@1

80mm

32 BAS-311E.311EL.326E.326EL
 Chapter 3. Assembly

Feed mechanism (X axis) 311EL, 326E

!2
!6
w !5

!4 !7
o
!3
e
!1
!4 r
u
i
t
!0 i y

1. Place X-timing belt B326 w between the two timing belt spacers e on the back of the X-feed bracket q. Align a
rectangular slot of the belt holder r with a tooth of X-timing belt B326 w, and secure them using the bolt t.
2. Fit timing X-timing belt B326 w in X-pulley bracket R y, pass X-pulley shaft R u through the micro bearing i, timing
pulley B o, and the micro bearing i, and attach the retaining ring !0.
3. Place X-timing belt B326 w and X-timing belt A326 !2 on X-pulley bracket L !1, pass the X-timing pulley shaft !3
through the micro bearing !4, timing pulley A !5, X-timing pulley B326 !6, and the micro bearing !4, and attach the
retaining ring !7.

BAS-311E.311EL.326E.326EL 33
Chapter 3. Assembly

Feed mechanism (X axis) 311EL and 326E

@3

@4
@1
!1
@7

2mm

@2
@5
!8

@6 u
!2
!6 !3 y
!9
@0
w
!5
@8

2.5mm

o
@7

4. Position X-timing pulley B326 !6, which is attached to X-pulley bracket L !1 via the X-timing pulley shaft !3, so that there
is a 2 mm clearance between the top of X-timing pulley B326 !6 and end A of X-pulley base L !1. Position timing pulley
A !5 so that there is a 2.5 mm clearance between the bottom of timing pulley A !5 and end B of X-pulley base L !1. Then
secure X-timing pulley B326 !6 and timing pulley A !5 to the X-timing pulley shaft !3 using the set screws !8 and !9.
5. Position timing pulley B o attached to X-pulley bracket R y so that clearances C and D are equal, then secure it to X-
pulley shaft R u using the set screw @0.
6. Loop X-timing belt A326 !2 around X-timing pulley A311 (A326) @2 of X-pulse motor @1 and X-timing pulley B326 !6.
Temporarily attach X-pulley bracket L !1 to the bed using the bolt @3 and washer @4.
7. Loop X-timing belt B326 w around timing pulley A !5 of X-pulley base L !1 and timing pulley B o of X-pulley base R y.
Temporarily attach X-pulley bracket R y to the bed using the bolt @5 and washer @6.
8. Insert the bolt @7 that is used to adjust the tension of X-timing belt A326 !2 from the left side of the bed, into X-pulley
bracket L !1.
9. Insert the bolt @8 that is used to adjust the tension of X-pulley belt B326 w from the right side of the bed, into X-pulley
bracket R y.

34 BAS-311E.311EL.326E.326EL
 Chapter 3. Assembly

Feed mechanism (Y axis) 311E and 311EL

1. Loop the Y-timing belt q around the Y-driving pulse mo-
e tor bracket w, and pass Y-pulley shaft B e through the
u Y-driving pulse motor bracket w, timing pulley A r, and
w
the micro bearing t. Attach the retaining ring y to hold
them.
2. Insert Y-pulley shaft A i into the Y-driving pulse motor
base u, passing it through timing pulley A o, the ball
bearing !0, and the idle gear !1. Position the idle gear !1
so that there is no end play with it.

!1
!0
t
r
t
y
q
o
!0 i

3. Secure timing pulley A r with a clearance of 0.5 mm

u from the Y-driving pulse motor bracket w left.
4. Secure timing pulley A o with the set screw !2 to pro-
vide a 0.5 mm clearance with the Y-driving pulse motor
0.5mm 0.5mm base u.

r o
!2
w

5. Lightly pressing the driving gear !4 of the Y-pulse motor

!5 !3 against the idle gear !1, attach the Y-pulse motor !3 to
the Y-driving pulse motor base u.
q Note: Make sure that there is no backlash between the
!3 idle gear !1 and the driving gear !4.
!1 w 6. Temporarily attach the Y-driving pulse motor bracket w
to the Y-driving pulse motor base u using the bolts !5.
7. Sandwich the timing belt spacers !7 between the Y-tim-
ing belt q and the Y-driving shaft holder !6, place the
belt holder !8 on the Y-timing belt q, and secure the Y-
!9 timing belt q to the Y-driving shaft holder !6.
u
!4 !8
!7
!6

8. Lightly pressing the assembled Y-driving pulse motor

u base u against end A of the machine, secure it with the
screws.

“A”

BAS-311E.311EL.326E.326EL 35
Chapter 3. Assembly

9. Attach the Y-axis feed guide @0 to the left of the X-feed

bracket @1, pressing the former against the latter.
10.Attach the Y-axis feed bracket @2, the cross roller @3, and
the right of the Y-axis feed guide @4 right of the to the X-
@9 feed bracket @1.
Note: When attaching the Y-axis feed guide @4 to the
#2 right of the X-feed bracket @1, lightly push it to the
left so that there is no looseness in the Y-axis feed
@8 guide @2, and tighten the set screw @5.
#0
@3

@0 #1
@2
@4 @5
@1

11.Tilt the machine head until it stops.

12.Pass the Y-driving shaft @6 through the Y-driving shaft
Parallel holder !6.
Align the reference line on the Y-driving shaft @6 with the
end of the Y-driving shaft holder !6.
@6 !6 Then, tighten the bolt @7.
Note: Be sure to make the X-feed shaft support @8 paral-
lel to the top of the bed to prevent timing belt (Y)
q from being damaged or cut.
13.Raise the machine head.
@7
Line
!6
@6

@8

14.Temporarily attach the presser arm @9 to the Y-feed

bracket @2 with the screw #0.
15.Pass the X-feed shaft #1 through the X-feed shaft sup-
port @8 and the presser arm @9, then secure it with the set
screw #2.
16.Loosen the bolt !5 of the driving P motor bracket w.
When the power is turned off, adjust the driving P motor
q bracket w with the adjust bolt !5 so that timing belt (Y)
q is not slack and the presser arm @9 moves smoothly
forwards and backwards. Then power on the machine
w and adjust the tension of timing belt (Y) q with the ad-
@9 just bolt #3 so that there is no looseness of the presser
arm @9.
17.After adjustment, tighten the bolt !5 of the driving P mo-
tor bracket w.

#3

!5

36 BAS-311E.311EL.326E.326EL
 Chapter 3. Assembly

Feed mechanism (Y axis) 326E

r

Rack

25 - 44N (2.5 - 4.5kgf)

1. Engage the driving gear w embedded in the Y-feed pulse motor bracket q with the rack of the Y-driving shaft e.
2. The engagement load between the driving gear w embedded in the Y-feed pulse motor bracket q with the rack of the
Y-driving shaft e should be 25 - 44 N ( 2.5 - 4.5 kgf) or less (so that the load will not fluctuate sharply). Move the Y-feed
pulse motor bracket q vertically to adjust the load, and secure it using the bolts r.

i
t
o

o !0
y
u

!1

3. Attach the Y-axis feed guide t to the left of the X-feed bracket y, pressing the former against u the latter.
4. Attach the Y-feed bracket i, the cross roller o, and the right Y-feed guide !0.
When attaching the right Y-feed guide !0 to the right of the X-feed bracket y, lightly pushing it to the left so that there
is no looseness in the Y-feed bracket i, and tighten the bolt and set screw !1.

BAS-311E.311EL.326E.326EL 37
Chapter 3. Assembly

!5
!2

!3

!4

5. Temporarily attach the work clamp Arm !2 to the Y-feed bracket i using the bolts and washers.
6. Temporarily attach the X-feed shaft support !3 to the Y-driving shaft e using the bolts and washers.
7. Pass the X-feed shaft !4 through the X-feed shaft support !3 and the work clamp Arm !2, and secure the X-feed shaft
support !3 and the X-feed shaft !4 using the set screws.
8. Move the work clamp Arm !2 left and right to make sure that there is no inclination in X-feed shaft !4. Then securely
tighten the bolts of Y-driving shaft e and the X-feed shaft support !3.
9. Remove the set screw of the slider support shaft !5 from the front of the work clamp Arm !2.

38 BAS-311E.311EL.326E.326EL
 Chapter 3. Assembly

6. Upper shaft mechanism

e q

w
t
y
r
q
e

t
i
!0 q

r
o
!1

0.5mm

!1 u
!0

q
w
!0

1. Insert the upper shaft q from the rear of the machine, and place the thread trimmer cam w and the stepping work
clamp connecting rod e on the shaft.
* Apply adhesive (equivalent of Three Bond 1401) around the area which the bearing in the machine goes into. Also,
apply grease to grooves on the thread trimmer cam w.
2. Pass the thread take-up crank r from the face plate side over the upper shaft q, and tighten the screw t and the set
screw y.
3. Place the upper shaft bush between the thread take-up crank r and the stepping work clamp connecting rod e, and
secure the upper shaft q so that there is no looseness. (At this time, do not securely tighten the set screw of the
stepping work clamp conncting rod e.)
4. Press the thread trimmer conncting rod w against the crank of the upper shaft q. Adjust the set screw u that comes
first when rotating to the screw flat, and tighten it.
5. Attach they synchronizer i to the machine using the screw o.
6. Attach the pulley !0 leaving a 0.5 mm clearance from the protrusion of the synchronizer i, tighten the set screw !1 that
comes later when rotating to the screw flat.

BAS-311E.311EL.326E.326EL 39
Chapter 3. Assembly

7. Needle bar mechanism

!8

t
!7
u
!6
!2
e !3
!1
r

q
!2 w !9 !5
q !0
!1
y

@0

!4

!3

aDP×5 ADP×17
!3 !4
u
i
o
Cut section

1. Temporarily tighten the screw w of the needle bar guide q.

2. Pass the thread take-up support stud e through the thread take-up assembly r, lightly press the former, and secure
them using the set screw t.
3. Pass the needle bar crank y through the thread take-up assembly r and the counter crank u, adjust the set screw i
to the screw flat, and tighten the set screws i and o.
4. Fit the chamfering side of the needle bar guide slide block !0 into the groove on the needle bar guide q, and insert the
shafts of the needle bar clamp !1 into the needle bar connecting rod !2 and the needle bar guide slide block !0, as
shown in the figure.
5. Insert the needle bar !3 from the top of the machine into the needle bar clamp !1.
6. Turn the pulley to set the needle bar !3 at its lowest position. Move the needle bar vertically so as to align the second
lowest reference line A (for using needle DP ✕ 17) or the highest reference line a (for using needle DP ✕ 5) on the
needle bar !3 with the lower end of needle bar bush (D) !4. Tighten the screw !5 with the cut section of the needle bar
facing the front.
7. Find the position of the needle bar guide q so that the pulley rotates easily, and tighten the screw w.
8. Attach the oil cap !6 and the rubber caps !7, !8, and !9.
9. Fit the needle bar thread guide @0 on the needle bar !3.

40 BAS-311E.311EL.326E.326EL
 Chapter 3. Assembly

8. Presser foot mechanism

!0 !4

!3
!2
u

!1
y

i
!5
t
r

!6 e

!7 q
32mm
w

1. Insert the presser bar w into the presser bar bush q. Pass the presser bar lifter e, the cushion r, and the needle bar
clamp t through the presser bar w in that order.
2. Secure the needle bar clamp t with the screw.
3. Insert the spring y and the spring guide u from the top of the arm, pass the spring guide u through the washer i and
the presser bar w, and attach the presser adjusting screw o.
Note: Position the presser adjusting screw o using the presser adjusting nut !0 so that there is approx. 32 mm from the
top of the presser adjusting screw o to the top of the machine.
4. Pass stepping work clamp arm F !1 through spreader shaft bushes (L) and (R) !2, then insert it into stepping work clamp
arm R !3.
5. Attach the stepping link assy !6 to the arm using the shoulder screw !5, and to the presser bar lifter e using the
retaining ring !7.

BAS-311E.311EL.326E.326EL 41
Chapter 3. Assembly

6. Turn the pulley to align the needle bar with the shuttle
hook. At this time, turn the stepping work clamp con-
necting rod !8 to turn stepping work clamp arm F !1 in
the direction of the arrow and move the stepping link
assy !6 in the direction of the arrow. When the presser
!1 foot is at the lowest position, secure the stepping work
clamp connecting rod !8 to the upper shaft @0 using the
V notch set screw !9.
Adjust the lift stroke of presser foot A to 3-5 mm, and 5-8
!6 mm. When the clearance between the presser bar lifter
e and the presser bar bush q is 0.5 - 1 mm, tighten the
bolt !4 of stepping work clamp arm R !3. (At this time,
the match mark of stepping work clamp arm F !1 will be
e almost aligned with that of arm.)
Note: Make sure that stepping work clamp arm F !0 has
t 0.5 - 1mm no end play.

!1
!4
!3

!9

!8
@0

7. Secure the needle bar clamp t using the screw so that

when the presser bar w is at the lowest position. The
distance between the bottom of the presser bar w and
the top of the needle plate should be 23 mm. (22 mm for
311EL.)
w Attach the presser foot @1 to the presser bar w so that
@3 the top of the presser foot @1 is aligned with the top of
@2 the screw that holds the presser foot @2.
@1 8. Attach the needle @2 to the needle bar @3.
@2 9. Turn the pulley to insert the needle @2 into the hole of the
presser foot @1 . Turn the presser bar w so that the
Align needle @2 is in the center of the hole of the presser foot
@1, and tighten the screw of the needle bar clamp t.

@1

10.Turn the pulley to set the presser bar w at its lowest po-
w sition. Adjust the height of the presser foot @1 so that
there is a 0.5 mm clearance from the top of the material
to be sewn.

@1

0.5mm

42 BAS-311E.311EL.326E.326EL
 Chapter 3. Assembly

9. Lower shaft mechanism (1)

!3 i
w q

e
t
o u
!0 y
!1

r
!2

!5
Matching mark 0.05 - 0.12mm
!3 w

!6

q
!4
!7
!3
u !1

1. Tilt the machine head until it stops.

2. Insert the rock gear shaft q from the rear of the machine, pass the rock gear w, the set screw collar e over the shaft,
bring them close together without any clearance, and tighten the set screw r.
3. Insert the lower shaft t from the rear of the machine, pass the set screw collar y over it, and engage the lower shaft
gear u with the rock gear w.
4. Sandwich the lower shaft bush i between the lower shaft gear u and the set screw collar y without any clearance,
and tighten the set screw o.
5. Fit the retaining ring !0 on the lower shaft t, press the driver !1 against the retaining ring !0, and tighten the bolt !2.
6. Return the machine head to its original position.
7. Fit the crank rod !3 over the crank of the upper shaft !4, align the matching mark of the crank rod !3 with that of the
upper shaft !4, and tighten the screw !5.
8. Tilt the machine head until it stops.
9. Turn the pulley !6 to move the rock gear w right and left until the pulley rotates easily. Turn the rock gear shaft q to
allow 0.05 - 0.12 mm play of the driver !1. Then tighten the set screw !7.
10.Return the machine head to its original position.

BAS-311E.311EL.326E.326EL 43
Chapter 3. Assembly

10. Lower shaft (Rotary hook) (2)

1. Fit the inner rotary hook in the large shuttle hook.
r 2. Turn the pulley to raise the needle bar from its lowest
position until the second highest reference line on the
w needle bar q aligns with the end of needle bar bush (D)
e w. Turn the shuttle driver e so that the inner rotary
DP × 5
hook point is aligned with the center of needle r, then
tighten the bolt t.
ADP × 17 q

3. Turn the pulley to align the inner rotary hook point with
the center of the needle. Loosen the set screw y so that
the clearance between the needle r and the inner ro-
y u
tary hook point is 0.01 - 0.08 mm, then rotate the shuttle
hook adjust stud u to adjust.
0.01 - 0.08mm
r

4. Turn the pulley to align the inner rotary hook point with
r the center of the needle r.
r Loosen the set screw and adjust the shuttle hook adjust
stud i so that the needle r lightly contacts the needle
receiver of the shuttle driver e.
e 5. Remove the needle r.

6. Attach the large shuttle hook o to the large shuttle hook

o body !0.
7. Insert the bobbin !1 into the bobbin case !2, then attach
!0 them to the inner rotary hook !3.

!1

!2

!3

44 BAS-311E.311EL.326E.326EL
 Chapter 3. Assembly

11. Thread trimmer mechanism

t
r
o
e y

i
u
q

0.5mm
e

!2 !4
V notch

!0
i
o !3
!1
w

1. Fit the hole of the thread trimmer connecting rod q over the pin of the connecting rod lever w. Secure the needle plate
e using the screws r and t so that the hole on the needle plate is centered at the needle position.
2. Turn the pulley y until the mark u has slightly passed over the horizontal line.
(Adjust the position of the pulley to the position where the cam gooves on the thread trimmer cam do not fluctuate.)
3. Attach the thread trimming solenoid i using the screw o. At this time, the plunger !0 of the thread trimming solenoid
i must be fully pressed (the same status as when the thread trimming solenoid i is turned on), and a 0.5 mm
clearance must be provided between the thread trimmer driving lever !1 and the driving lever stopper !2.
4. Make sure that the thread trimmer driving lever !1 moves smoothly when the plunger !0 is pressed and released.
5. Tilt the machine head until it stops.
6. Loosen the nut !3, move the connecting rod lever w to the left and right to align the V notch A of the movable knife !4
with the mark on the needle plate e, and tighten the nut !3.
7. Return the machine head to its original position.

BAS-311E.311EL.326E.326EL 45
Chapter 3. Assembly

12. Feed guide mechanism (Home position adjustment: X )

311E, 311EL, and 326E
1. Secure the large shuttle hook cover q with the two
shoulder screws w.
2. Secure the needle sub plate e with the screw r.
r 3. Remove the presser foot t.

e
t

4. Remove the screws u, tlat screws o and the work

clamp guide brackets A y, B i and replace the work
clamp !0 with the H-position standard plate !1.
Note: Securely attach the H-position standard plate !1
i using the work clamp guide brackets A y, B i
and the flat screws o.

y !1
o
!0

!5

!4
Parallel

!2 !3 P key !6
X-reference
line
!1

5. Connect the programmer !2 to the operation panel !3.

6. Plug the cord into the wall socket, and turn on the power of the machine.
7. Step on the foot switch to lower the H-position standard plate !1.
8. Press the P key on the programmer !2.
9. Attach the needle !4.
10.Turn the pulley to bring the needle !4 close to the H-position standard plate !1.
11.Press the jog key ( vu ) to adjust the work clamp arm !5 until its X-direction motion is parallel to the X-reference line
of the H-position standard plate !1. Securely tighten the screws !6.

46 BAS-311E.311EL.326E.326EL
 Chapter 3. Assembly

0.1 - 0.5mm

!4
!1

!8 !7

H - position
(X=0, Y=0)

12.Press the P key and adjust the X-sensor setting plate !7 so that the needle !4 is aligned with the home position (X=0,
Y=0) of the H-position standard plate !1.
13.Press the P key again to make sure that the needle !4 is aligned with the home position (X=0, Y=0) of the H-position
standard plate !1.
14.Secure the X-sensor setting plate !7 using the screw.
15.Remove the needle !4.
16.Press the P key to be out of the program mode, and turn off the power.
17.Replace the H-position standard plate !1 with the work clamp.
Note: When adjusting the X home position, be sure to set the clearance between the X-home position dog !8 and the
surface where the sensor is activated to 0.1 - 0.5 mm. If the clearance is too great, an error in home position
detection may occur because the temperature of the sewing machine rises during sewing operation.

BAS-311E.311EL.326E.326EL 47
Chapter 3. Assembly

Feed guide mechanism (Home position adjustment: Y )

311E and 311EL
e r e

q t
w

0.1 - 0.5mm
H - position t
(X=0, Y=0)

1. Press the P key on the programmer, and adjust the Y-home position dog e so that the needle q is aligned with the
home position (X=0, Y=0) of the H-position standard plate w.
2. Press the P key again to make sure that the needle q is aligned with the home position (X=0, Y=0) of the H-position
standard plate w.
3. Secure the Y-home position dog e using the set screw r.
4. Remove the needle q.
5. Press the P key to be out of the program mode, and turn off the power.
6. Replace the H-position standard plate w with the work clamp.
Note: When adjusting the Y home position, be sure to set the clearance between the Y-home position dog e and the
surface where the sensor t is activated to 0.1 - 0.5 mm. If the clearance is too great, an error in home position
detection may occur because the temperature of the sewing machine rises during sewing operation.

Feed guide mechanism (Home position adjustment: Y )

326E and 326EL

P key y u
0.1 - 0.5mm

r t e
w
H - position
(X=0, Y=0)

1. Press the P key on the programmer, and adjust the Y-sensor setting plate e so that the needle q is aligned with the
home position (X=0, Y=0) of the H-position standard plate w.
2. Press the P key again to make sure that the needle q is aligned with the home position (X=0, Y=0) of the H-position
standard plate w.
3. Attach the Y-sensor setting plate e to the Y-home position bracket r using the bolt t.
4. Remove the needle q.
5. Press the P key to be out of the program mode, and turn off the power.
6. Replace the H-position standard plate w with the work clamp.
Note: When adjusting the Y home position, be sure to set the clearance between the Y-driving shaft y and the surface
where the sensor u is activated to 0.1 - 0.5 mm. If the clearance is too great, an error in home position detection
may occur because the temperature of the sewing machine rises during sewing operation.

48 BAS-311E.311EL.326E.326EL
 Chapter 3. Assembly

13. Covers 311E

1. Secure XY-feed base covers (L) q and (R) w with the
screws e.
q y 2. Attach Y-feed bracket cover (B) r to Y-feed bracket
e cover (A) t.
t r Secure the right and left X-feed bracket covers (L),(R) y
u with the screws u.
y

w
u
e

3. Attach the thread wiper connecting rod i to the plunger

!0 with the plunger pin o, then secure the face plate !1
with the screw !2.
!2 4. Attach the presser foot !3 and the needle !4 in place and
attach the feed plate !5 to the feed bracket !6 with the
screw.
!1

o
!0 i

!4
!6
!3

!5

5. Attach the top cover !7, and the side cover !8 with the
!7 screws.
6. Set the V belt !9 over the pulley @0 , then secure belt
cover @1 with the screws @2.
@1 @0

@2
!8

!9

BAS-311E.311EL.326E.326EL 49
Chapter 3. Assembly

311EL
t
o

!1
r
y w
e

!0

q
i

u
e
t

1. Attach the XY-feed bracket covers L q and R w using the screws.

2. Insert the left and right feed bracket cover supports e in the direction of the arrow, and tighten the screws.
3. Attach the X-axis feed bracket covers t using the screws.
4. Attach the faceplate t using the screws.
5. Attach the plunger pin y to the plunger u.
6. Attach the top cover i, the belt cover o, and the frame side cover !0 using the screw.

326E · 326EL
r
o

t !1

y w
e

!0

q
i

u
e
r

1. Attach the XY-feed bracket covers L q and R w using the screws.

2. Insert the left and right feed bracket cover supports e in the direction of the arrow, and tighten the screws.
3. Attach the X-axis feed bracket covers r using the screws. (Use the front screws.)
4. Attach the bellows assy t to the work clamp arm and the X-axis feed bracket covers r using the screws.
5. Attach the faceplate y using the screws.
6. Attach the plunger pin u to the plunger i.
7. Attach the top cover o, the belt cover !0, and the frame side cover !1 using the screws.

50 BAS-311E.311EL.326E.326EL
 Chapter 4. Adjustments

Chapter 4. Adjustments
1. Adjusting the needle bar height adjustment
q

e
a(DPx5) A(DPx17)

Turn the machine pulley to move the needle bar to the lowest position. Then remove the rubber cap w, loosen the screw
e and then move the needle bar up or down to adjust so that the second reference line from the bottom of the needle
(reference line A) is aligned with the lower edge of the needle bar bush q.
*If using a DP ✕ 5 needle, use the highest reference line (reference line a).

2. Adjusting the needle bar lift amount

q
The tip of rotary hook Needle center

Needle
e

e w
b(DPx5)
B(DPx17)

Turn the machine pulley to raise the needle bar from the lowest position until the lowest reference line on the needle
(reference line B) is aligned with the lower edge of the needle bar bush q. Then loosen the bolt w and move the driver e
to adjust so that the tip of the rotary hook is aligned with the needle center line.
*If using a DP ✕ 5 needle, use the second reference line from the top of the needle (reference line b).

BAS-311E.311EL.326E.326EL 51
Chapter 4. Adjustments

3. Adjusting the needle clearance

q
0.01 - 0.08mm w

Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw q and
turn the eccentric shaft w to adjust so that the clearance between the needle and the rotary hook is 0.01 - 0.08 mm.

4. Adjusting the driver needle guard

q
w
e

Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw w and
turn the eccentric shaft e to adjust so that the driver needle guard q contacts the needle. If the needle contact pressure is
too great, skipped stitches may occur. On the other hand, if the driver needle guard q is not touching the needle, the tip of
the inner rotary hook will obstruct the needle, resulting in an excessively high amount of friction.

5. Adjusting the shuttle race thread guide

q

Install the shuttle race thread guide q by pushing it in the direction of the arrow so that the needle groove is aligned with
the center of the needle plate hole.
Note:If the shuttle race thread guide is in the wrong position, thread breakages, soiled thread or catching of the thread
may occur.

52 BAS-311E.311EL.326E.326EL
 Chapter 4. Adjustments

6. Adjusting the two-step work clamp lift amount

¡The maximum work clamp lift amount is 25 ± 1 mm (for solenoid type) or 30 ± 1 mm (for pneumatic type) from the top
of the needle plate.
¡The lift amount for each model is adjusted as shown in the table at the time of shipment.

type Solenoid type Pneumatic type

Lift amount 20mm 20mm

6-1. Solenoid type

e w
20mm q

1. Turn the power switch OFF.

2. Loosen the bolts w of work clamp arm lever F q.
3. Place a scale against the work clamp e, and then move work clamp arm lever F q up or down to adjust so that the
amount of lift above the top of the needle plate is 20 mm.
4. After adjusting the lift amount (20 mm), tighten the bolts w of work clamp arm lever F q.

BAS-311E.311EL.326E.326EL 53
Chapter 4. Adjustments

6-2. Pneumatic type

(BAS-311E · 311EL)

e w e
w

r r

q 20mm t
(BAS-326E · 326EL)
e
y
e
y w
w
r
r

20mm t

1. Turn on the air, and then press the work clamp lifter switch q while turning it clockwise, to raise the work clamp w.
2. Loosen the bolts r of work clamp arm lever F e (BAS-326E, 326EL: work clamplifter lever y).
3. Place a ruler against the work clamp w, and then move work clamp arm lever F e (BAS-326E, 326EL: work clamplifter
lever y) vertically to find the position where the lift amount of the work clamp is 20 mm.
4. After adjusting the lift amount to 20 mm, tighten the bolts r of work clamp arm lever F e(BAS-326E, 326EL: work
clamplifter lever y).

6-3. Adjustment of air pressure (for Pneumatic type 311E, 311EL, 326E,
326EL)
1. Air pressure should be 0.49 MPa [5 kgf /cm2].
The air pressure can be adjusted by pulling up and turn-
ing the control knob w on the integrator q.
After adjustment is complete, push the control knob w
downward to lock it.
2. If water stands in the bottle of the integrator q, turn the
w r drain cock e in the direction indicated by an arrow to
drain the water.
Note: Open the air cock r slowly.

54 BAS-311E.311EL.326E.326EL
 Chapter 4. Adjustments

7. Adjusting the movable knife

w

q
Index mark

e
r

Loosen the nut e and move connecting rod lever r to the left or right to adjust so that the V section A of the movable
knife q is aligned with the index mark B on the needle plate w when the machine is at the stop position.

7-1. Replacing the movable and fixed knives

u i

w
t

!0
o

1. Remove the bolt t, and the feed plate y, the screws u and i, and the needle plate w. Disconnect the thread cutter
connecting rod o from the connecting lever pin !0.

q
!2

Spacer
!1

0.5mm
!1

2. Remove the movable knife, and replace it with a new 3. Install the fixed knife !1 0.5 mm away from the needle
one. Check the cutting edge of the movable knife q and hole plate !2.
the fixed knife !1. If necessary, use the provided mov-
able knife spacer (t=0.4,t=0.5,t=0.6) to adjust the knives
so that they cut properly.

BAS-311E.311EL.326E.326EL 55
Chapter 4. Adjustments

NOTE:
A. After the movable knife and fixed knife are properly engaged, tighten shoulder screw.
B. Turn the movable knife (in the direction of the arrow) while the shoulder screw is still tightened.
C. Loosen the shoulder screw.
D. Turn the movable knife (in the direction of the arrow) while the shoulder screw is still loosened.
Repeat above steps (A, B, C and D) four of five times to maintain the cutting performance of the knife.

Movable knife

Knives

Fixed knife

Knives
Knives

Knives

4. Fit the thread cutter connecting rod o on connecting le-

ver pin !0, and install the needle plate w.
u i
* When fitting the connecting rod o on the connecting
w lever pin !0 and before tightening the screws u and
i, move the needle plate w back and forth slightly to
q confirm that the movable knife q is pulled by the con-
necting rod o.

!0
o

56 BAS-311E.311EL.326E.326EL
 Chapter 4. Adjustments

5. When installing the feed plate y, use a 2 mm- diameter

311E, 311EL pin !3 (such as a needle) to align the hole in the needle
plate w with the hole in the feed plate w when the ma-
chine is at the home position, and then tighten the bolts
t t.
* How to determine the mechanical home position
a. Connect the programmer to the operation panel.
b. Plug the cord into the wall socket, and turn on the
y power.
c. Press the P key on the programmer to determine the
mechanical home position.

!3
w

326E, 326EL

!3

BAS-311E.311EL.326E.326EL 57
Chapter 4. Adjustments

8. Adjusting the lowest point of the presser foot

1. Turn the pulley to align the needle bar with the shuttle
hook. At this time, turn the stepping work clamp con-
necting rod q to turn stepping work clamp arm F w in
the direction of the arrow, and move the stepping link
assy e in the direction of the arrow. When the presser
w foot is at the lowest position, secure the stepping work
o clamp connecting rod q to the upper shaft t using the
i set screw r.
Adjust the lift stroke of the presser foot to 3 - 5 mm, and
e 5 - 8 mm. When the clearance between the presser bar
lifter y and the presser bar bush u is 0.5 - 1 mm, tighten
the bolt of stepping work clamp arm F w. (At this time,
the match mark i of stepping work clamp arm F w will
y be almost aligned with that of arm mark o.)
Note: Make sure that stepping work clamp arm F w has
no end play.
0.5 - 1mm

!6
u

!1

!0

q
t

2. Attach the needle to the needle bar.

3. Turn the pulley to insert the needle !2 into the hole of the
!5 presser foot !4 . Turn the presser bar !5 so that the
needle !2 is in the center of the hole of the presser foot
!4, and tighten the screw of the needle bar clamp !6.
!4 !2

58 BAS-311E.311EL.326E.326EL
 Chapter 4. Adjustments

8-1. Presser foot adjustment

1. Loosen the screw q, lower the presser foot w so that its
bottom can lightly touch the workpiece, and tighten the
screw q again.
Note: If the presser foot is lowered too far, the
workpiece will shift when sewing. Also, if the
presser foot is too high, skipped stitches may oc-
cur.
2. Turn the pulley manually to make sure that the needle
r enters the center of the needle hole in the presser foot
w. If the needle is not aligned with the center of the
e needle hole, remove the cap e, loosen the screw r, and
turn the presser foot (presser bar) for adjustment.

When the presser foot is in the high position and the

q needle point is projecting below the presser foot, it
could cause injuries.
w w

9. Changing the presser foot lift

Standard presser foot q lift is 3 mm (max. 8 mm).

q e t

3 - 5mm y
w
0.5 - 1mm
r u

Adjusting presser foot lift to 3 - 5 mm

1. Loosen the shoulder screw w and open the stepping cover e.
2. Loosen the nut r and adjust the stepping work clamp con. rod t pisition.
(When the stepping work clamp con. rod t is raised, the lift will amount increase. When lowered, the lift amount will
decrease.)

Adjusting presser foot lift to 5 - 8 mm

1. Turn the upper shaft to set the presser foot to its lowest point. Loosen the bolt o of stepping work clamp arm R i.
Adjust the clearance between the presser lifter y and the presser bar bush u to 0.5 - 1 mm.
2. Loosen the nut r and adjust the stepping work clamp con. rod t position.
(When the stepping work clamp con. rod t is raised, the lift amount will increase. When lowered, the lift amount will
decrease.
If vertical movement of the presser foot is not required
!4
1. Remove the face plate !0.
!3 2. Remove the shoulder screw !1 and re-attach the step-
ping link !2 to the upper screw hole !4 of stepping work
!1 clamp arm F !3.
!2

!0

BAS-311E.311EL.326E.326EL 59
Chapter 4. Adjustments

10. Wiper adjustment

■ For vertical wiper (standard)

r e
q w

w t

112mm
approximately 2 mm
y
15mm

1. When the thread wiper solenoid plunger q is driven to the full stroke, the wiper w should be 15 mm in front of the
needle center. Loosen bolts e and shift the entire solenoid bracket r up or down to adjust.
The standard height from the solenoid setting plate r bottom to the needle plate top is approximately 112 mm.
2. When the wiper w is operated and aligned with the center of the needle bar, the distance from the wiper w to the point
of the needle should be approximately 2 mm. Loose the screw t and move the wiper w in or out to adjust. As shown
in Fig. A, make sure the wiper w does not strike the presser foot y or the needle.
Note: Make that the wiper w is not touching the finger guard.

■ For horizontal wiper (optional)

e
y
r

w
15 - 16mm

(35mm)
(25mm)

(25mm) (35mm)

1. Loosen the set screw e and move the wiper arm support r up or down to adjust so that there is a clearance of 15 - 16
mm between the bottom of the thread wiper q and the needle plate w when the thread wiper q is aligned with the
center of the needle bar.
2. After the thread wiper has wiped the thread, loosen the bolt t and move the solenoid setting plate y up or down to
adjust the distance to approximately 35 mm.

60 BAS-311E.311EL.326E.326EL
 Chapter 4. Adjustments

11. Adjusting the home position

■ (X axis)
1. Remove the needle and presser foot.
2. Remove the flat screws w and screws r of the work
clamp guide brackets A q, B e and replace the work
clamp y with the H-position standard plate t.
q Note: Attach the H-position standard plate t using the
work clamp guide brackets A q, B e and the flat
screws w.

e t
w
y

!1

0.1 - 0.5mm
o
u
y

H - position
(X = 0, Y = 0) !0 i

3. Press the P key and adjust the X-sensor setting plate i so that the needle u is aligned with the home position (X=0,
Y=0) of the H-position standard plate t.
4. Press the P key again to make sure that the needle u is aligned with the home position (X=0, Y=0) of the H-position
standard plate t.
5. Secure the X-sensor setting plate i using the screws o.
6. Remove the needle u.
7. Press the P key to be out of the program mode, and turn off the power.
8. Replace the H-position standard plate t with the work clamp.
Note: When adjusting the X home position, be sure to set the clearance between the X-home position dog !0 and the
surface where the sensor !1 is activated to 0.1 - 0.5 mm. If the clearance is too great, an error in home position
detection may occur because the temperature of the sewing machine rises during sewing operation.

BAS-311E.311EL.326E.326EL 61
Chapter 4. Adjustments

■ (Y axis) 311E and 311EL

1. Remove the belt cover q and the frame side cover w.
2. Connect the programmer to the operation panel.
3. Turn on the power of the machine.
q 4. Press the P key on the programmer.

5. Attach the needle e.

6. Turn the pulley to approach the needle e to the H-posi-
tion standard plate r.

y t
t

u
e
r

0.1 - 0.5mm
u
H - position
(X = 0, Y = 0)

7. Press the P key and adjust the Y-home position dog t so that the needle e is aligned with the home position (X=0, Y=0)
of the H-position standard plate r.
8. Press the P key again to make sure that the needle e is aligned with the home position (X=0, Y=0) of the H-position
standard plate r.
9. Secure the Y-home position dog t using the set screw y.
10.Remove the needle e.
11.Press the P key to be out of the program mode, and turn off the power.
12.Replace the H-position standard plate r with the work clamp.
Note: When adjusting the Y home position, be sure to set the clearance between the Y-home position dog t and the
surface where the sensor u is activated to 0.1 - 0.5 mm. If the clearance is too great, an error in home position
detection may occur because the temperature of the sewing machine rises during sewing operation.

62 BAS-311E.311EL.326E.326EL
 Chapter 4. Adjustments

■ (Y axis) 326E, 326EL

q 0.1 - 0.5mm
w

H - position e
r t
(X = 0, Y = 0)

1. Press the P key and adjust the Y-sensor setting plate e so that the needle q is aligned with the home position (X=0,
Y=0) of the H-position standard plate w.
2. Press the P key again to make sure that the needle q is aligned with the home position (X=0, Y=0) of the H-position
standard plate w.
3. Attach the Y-sensor setting plate e to the Y-home position bracket r using the bolt t.
4. Remove the needle q.
5. Press the P key to be out of the program mode, and turn off the power.
6. Replace the H-position standard plate w with the work clamp.
Note: When adjusting the Y home position, be sure to set the clearance between the Y-driving shaft y and the surface
where the sensor u is activated to 0.1 - 0.5 mm. If the clearance is too great, an error in home position detection
may occur because the temperature of the sewing machine rises during sewing operation.

BAS-311E.311EL.326E.326EL 63
Chapter 4. Adjustments

12. Adjusting the tension of the timing belt

Note: Be sure to check the home position after adjusting the tension of the timing belt.
■ Adjusting the tension of X-timing belt 311E
1. Remove the X-feed bracket cover q.
2. Loosen the bolt e of X-pulley base B w, then adjust the
tension using the bolt r.
q

w r

3. Move the X-feed bracket y to the left end and apply a

load of 9.8N (1 kgf) to the center of the X-timing belt B t.
t Then adjust the X-timing belt B t with the adjust bolt u
to produce a deflection of 3 mm.
y

9.8N(1kgf) 3mm
80mm u

■ Adjusting the tension of Y-timing belt

1. Remove the belt cover q and the frame side cover w.
q

2. Loosen the bolt r, and move the Y-feed pulse motor

bracket e to adjust the tension of the Y-timing belt.
3. When the power of the machine is turned off, there
should be no slack in the Y-timing belt y and the work
clamp arm u should move back and forth easily.
q Adjust the position of the Y-feed pulse motor bracket e
using the bolt t.
e When the power is turned on, move the work clamp arm
u u back and forth, and adjust the tension of the Y-timing
belt y using the bolt t so that there is no looseness in
the work clamp arm u.
r

64 BAS-311E.311EL.326E.326EL
 Chapter 4. Adjustments

311EL and 326E, 326EL

•311EL
1.5mm
•326E, 326EL
w 1mm
9.8N 9.8N
•311EL !1
(1kgf)
t (1kgf) e 3mm o
•326E, 326EL
2.5mm !2
y

q i
u
r !0

■ Adjusting the tension of X-timing belt A326

X-timing belt A326 e is looped around X-timing pulley A311 (A326) q and X-timing pulley B326 w.
The tension of X-timing belt A326 e should have 1 mm deflection when it is pressed in the middle of X-timing pulley
A311 (A326) q and X-timing pulley B326 w with a load of 4.9N (0.5 kgf) in the direction of the arrow.
Turn the bolts r clockwise to move X-pulley bracket L t until the appropriate tension is given, and secure X-pulley
bracket L t to the bed using the screws y.
Note: The bolts r for adjusting the timing belt tension are in front of and behind X-pulley bracket L t. Adjust the bolts
r equally so that X-pulley bracket L t does not lean to one side.

■ Adjusting the tension of X-timing belt B326

X-timing belt B326 o is looped around timing pulley A u and timing pulley B i.
The tension of X-timing belt B326 o should have 3 mm deflection when it is pressed in the middle of timing pulley A u
and timing pulley B i with a load of 9.8N (1 kgf) in the direction of the arrow. (326EL: 2.5 mm deflection with a load of
9.8N (1 kgf)
Turn the bolts !0 clockwise to move X-pulley bracket R !1 until the appropriate tension is given, and secure X-pulley
bracket R !1 to the bed using the bolts !2.

BAS-311E.311EL.326E.326EL 65
Chapter 4. Adjustments

13. Adjusting backlashes

■ Lower shaft
1. Tilt the machine head until it stops.
2. Loosen the set screw q, then turn the rock gear shaft w
to provide 0.05 - 0.12 mm looseness at the tip of the
shuttle driver e.
q
0.05 - 0.12mm

■ Y-axis feed
Loosen the four bolts q, then adjust the Y-pulse motor
w so that there is no backlash between the rock gear and
the idle gear.
q

66 BAS-311E.311EL.326E.326EL
 Chapter 4. Adjustments

14. Adjusting the driving lever stopper position

q
w
6mm
6mm

t
e
e Most 0.15 mm

r
r

1. Remove the screws q and the top cover w.

2. If thread trimming is not performed, loosen the bolts t so that the difference between the thread trimmer driving lever
e and the driving lever stopper r is 6 mm.
* Make sure that the clearance between the thread trimmer driving lever e and the driving lever stopper r is at the
most 0.15 mm.
The driving lever stopper r has an imprinted number mark: 2, 3, or 4. If the clearance is larger than 0.15 mm, replace
the driving lever stopper 4 with that with a different number. For example, when the number 3 stopper is used,
replace it with number 4 stopper. When the number 4 stopper is used, replace it with number 2 stopper.

15. Adjusting the thread trimmer driving lever position

y
q
w

r
e

1. Remove the screws q and the top cover w.

2. Turn the pulley to place the thread trimmer cam e with its non-operating portion facing upward.
3. Loosen the nut t. Move the screw y so that the roller r of the thread trimmer driving lever will return smoothly when
it is put into the groove of the thread trimmer cam e.

BAS-311E.311EL.326E.326EL 67
Chapter 4. Adjustments

16. Work clamp lift components for manual operation (Sole-

noid type)
1. Fully press in the plunger w of the work clamp solenoid
q q.

Lightly make the shaft touch here.

2. Adjust the presser bar lifter lever arm y so that the shaft
of the shoulder screw lightly touches the rod t when
the presser bar lifter lever e is in contact with the stop-
y
per r.
t

e
u

17. Adjusting the presser foot height

1. Turn the pulley to where the needle is at its lowest posi-
tion. The lowest point of the presser bar q is at the
w place where the needle is aligned with the shuttle hook.
r 2. Fully turn the plunger of the stepping solenoid w in the
direction of the arrow, then adjust the lifter lever t so
that the work clamp lifter lever e is in contact with the
clamp needle bar r.

q t

3. Measure the dimension between the presser foot y and

the needle plate when the presser foot is at the lowest
position.
Turn the pulley to set the needle bar at its lowest posi-
y tion. When pulling the lifter lever t toward you until it
makes contact with the adjust screw u, the distance be-
tween the presser foot and the needle plate should be 18
mm. Loosen the nut i, and adjust the adjust screw u.

18mm
i

u
t

68 BAS-311E.311EL.326E.326EL
 Chapter 4. Adjustments

18. Adjusting the needle up stop position

e

Feed plate in operation

Material

r q

t
w u
y
Feed plate not in operation

1. Loosen the screw t (at the U side on the pulley q), and turn the pulley q so that the mark w on the pulley is inside the
mark r of the belt cover e .
The pulley q stops later if it is turned clockwise; it stops earlier if it is turned counterclockwise.
The standerd needle up stop position is 6 mm below the needle bar dead point.
2. Timing between the needle and the feed mechanism is adjusted so that the feed mechanism srarts operating after the
needle comes out of the material sewn, and stops before the needle penetrates the material.
The screw y on the D side is tightened fully counterclockwise at the time of shipment.
3. The screw u cannot be adjusted because it is used for detecting the needle stop position.

BAS-311E.311EL.326E.326EL 69
Chapter 5. How to make up the work clamp

Chapter 5. How to make up the work clamp

• The work clamp is available in two types; clamping type and cassette type.
The maximum sewing range is (W × L) BAS-311E (130mm × 60mm), 311EL (220mm × 60mm), 326E (200mm × 100mm),
326EL (220mm × 100mm).
■ Clamping type ■ Cassette type
Work clamp
(separate Work clamp Cassette clamp
plate) (single type)

Cassette support

Feed plate

Cassette clamp
assembly

1. How to make up clamping type work clamp

■ How to make up the work clamp
Cut out the work clamp blank so that the cutout size is
wider than the sewing position by (half of the presser
Work clamp foot diameter + 1 to 1.5 mm).
(Single type work
clamp blank) D: diameter of the top end of the presser foot
Sewing position
(The needle threads
along)

D/2 + 1 to 1.5mm

Feed plate
(Feed plate blank) D/2 + 1 to 1.5mm

Presser foot Work clamp

1 - 1.5mm
D

■ How to make up the feed plate

Cut out the feed plate blank 1 to 1.5 mm apart from the
sewing position.
In the case of the left figure, 1 to 1.5 mm margin is re-
quired on both sides of the sewing position.
Feed plate
Sewing position
1 - 1.5mm

1 - 1.5mm

1 - 1.5mm 1 - 1.5mm

70 BAS-311E.311EL.326E.326EL
 Chapter 5. How to make up the work clamp

■ How to make up the plastic work clamp

1. Cut out the plastic plate according to the counter of a
material to be sewn.
2. Bond a paper cushion material or the like around the cut-
Work clamp out section to firmly press a material to be sewn.
(Standard)
3. Make up the feed plate by referring to item 2.
"How to make up the feed plate".

OT pesser plate
assembly
(plastic plate)

Feed plate

2. How to make up cassette type work clamp

The cassette type work clamp is composed of cassette plate
(U), cassette plate (D), and the hinges as illustrated in the
left figure.

1. Cut out cassette plates (U) and (D). For cutting dimen-
Hinges sions, refer to section "How to make up the clamping
type work clamp".
* Making up two cassettes to use them alternately will
increase work efficiency.

Cassette plate
D-B
Cassette clamp
assembly
Cassette plate
D-B

2. Bond a paper cushion material or the like around the cut-

Cassette plate D-A (iron) out section to firmly press a material to be sewn.

Cassette plate (D) is available in two types; D-A and D-B.

* Use cassette D-B with the same way as D-A, except

that a plastic plate or the like must be bonded on the
back of D-B. When mounting hinges on cassette plate
D-B, insert a countersunk screw M3 into the 4.6 mm
diameter countersunk hole prior to bonding the plastic
plate.
Cassette plate D-B

Lower cassette plate

(plastic)

BAS-311E.311EL.326E.326EL 71
Chapter 5. How to make up the work clamp

Cassette presser

117.5 141.5
106 118 (82)
70

70 70

70 82 82 82

Cassette presser 1R SO2845-001 Cassette presser 2R SO2847-001 Cassette presser 3R SO2849-001

t=3.2 t=3.2 t=3.2
Cassette presser 1L SO2846-001 Cassette presser 2L SO2848-001 Cassette presser 3L SO2850-001

Clamp spring
(52)

40 70

82 60
25 40
t=0.8
t=0.4 t=0.6

Cassette presser 4R SO2851-001

t=3.2
Cassette presser 4L SO2852-001 Clamp spring 1 SO2853-001 Clamp spring 2 SO2854-001 Clamp spring 3 SO2855-001

Note: To use the cassette support the set base for feed plate illustrated below should be attached.

Cassette holder plate

S02963-201
Cassette plate D-B (t=1)
S02967-101
Cassette plate D-B 180 (t=1)
S02967-001

Cassette holder plate (t=3.2)

Set base for feed plate
S02963-201
S12586-001
Pin
S13007-001
Cassette holder plate designed
for the model BAS310
Cassette holder plate
S13006-001
S44411-001 Nut
021660-306 Cassette lower plate
A (t=1) S02969-000
B (t=2) S02970-000
A - 180 (t=1) S14386-000
B - 180 (t=2) S14387-000

Cassette plate U- A (t=1) S02968-001

B (t=2) S02971-000
A - 180 (t=1) S14389-000
B - 180 (t=2) S14390-000
Cassette presser (A) assembly S02959-101
Cassette plate U-A S02968-000
Hinge, left
152633-001 Hinge,left 152633-001
Hinge, right
Hinge,right 152632-001
152632-001
Cassette plate D-A S02966-101

Cassette presser (B) assembly S02960-101

Cassette plate U-A S02971-000
Hinge,left 152633-001
Cassette plate D-A (t=1) Hinge,right 152632-001
S02966-101
Cassette plate D-A 180 (t=1) Cassette plate D-A S02966-101
S14392-201

72 BAS-311E.311EL.326E.326EL
 Chapter 6 Power supply and electrical parts adjustment

Chapter 6 Power supply and electrical parts

adjustment
1. Precautions at the time of adjustment
Pay attention to the following when opening the control box for maintenance.

■ Electric shock
Some large capacitors may have a high voltage remaining in them for up to 5 minutes after the power is turned off. To
prevent electric shock, wait at least 5 minutes after the power is turned off before doing the following:
• Opening and closing the control box
• Replacing fuses
• Separating and joining connectors
• measuring resistance
• Doing anything with a possibility of touching something inside the control box
Some adjustments require measuring the voltage while the power is turned on with the control box kept open.
In such a case, be careful not to touch any place other than that for the measurement. In addition, always keep in mind
that a high voltage remains for 5 minutes after the power is turned off.

■ Injury
While the power is turned on, the cooling fan of the control box operates; be careful not to get caught in it.
When separating or rejoining connectors, and measuring something, be careful not to cut your fingers on metal parts
such as heatsinks and covers.

2. Components inside the control box

The following are brief explanations of components inside the control box. See control circuit block diagram at the end of
this manual for the details of the connections.

■ Main PCB
The main PCB is fixed to the rear panel of the control box. This PCB serves to control machine operation.

■ Power supply circuit board

The power supply circuit board is fixed at the bottom of the control box. Four fuses are mounted on this PCB.

■ Panel circuit board

The panel circuit board is fixed to the front panel of the control box. This PCB controls indications of the machine status
and the input operation.

■ DC fan motor
The DC fan motor serves as a fan to cool the inside of the control box. Clean the inlet filter monthly.

■ Conversion transformer (depending on power supply voltage specification)

The conversion transformer controls the power supply voltage to provide 220 V.

Operation panel Control box

Conversion transformer
Panel circuit board

DC fan

Inlee fileer

Power supply
3.5 FDD circuit board

Main PCB

BAS-311E.311EL.326E.326EL 73
Chapter 6 Power supply and electrical parts adjustment

3. Fuse explanation
When replacing a fuse, follow the instructions indicated in "10-9. Troubleshooting flowchart."
If a component on a PCB is damaged, a fuse may blow again immediately even when it has been replaced.
When replacing a fuse, be sure to use the specified ones listed below.

No. Part name Part code Manufacturer When a fuse has blown

Toyo Fuse • The feed mechanism and work clamp do

G fuse (5AFB) not operate.
1 (quick melting type, 5A-250V) S08030-000 Company
TOYO5A • Error [E-A1] appears.

G fuse (5AFB) Toyo Fuse • The machine motor does not turn.
2 (quick melting type, 5A-250V) S08030-000 Company • Error [E-20] appears.
TOYO5A

Fuse 6A Fuji Tanshi The power lamp is not lit, and nothing
3 (glass tube fuse, 6A-250V) 153242-000 Company FGBO operates.

Fuse 6A Fuji Tanshi The power lamp is not lit, and nothing
4 (glass tube fuse, 6A-250V) 153242-000 Company FGBO operates.

Fuse No.1

Fuse No.2
Fuse No.3

Fuse No.4

74 BAS-311E.311EL.326E.326EL
 Chapter 6 Power supply and electrical parts adjustment

4. Connectors
Most of the machine trouble is due to connector problems including improper connection or insufficient contact. There-
fore, be sure to check if each connector is correctly inserted and that there is no contact failure between pins and wires
before starting toubleshooting procedures.

■ Connector positions
Outside of the control box

Panel cord connector

Foot switch connector

Main PCB

P19 P20 P24(OPTION) P21 P4

P18 P3
P9

P1

P8

P2
Main P-ROM(MN)

P25
Motor P-ROM
(MT)

P10

P17

P11

P12
P16

P13

P15 P14 P7 P6 P5

BAS-311E.311EL.326E.326EL 75
Chapter 6 Power supply and electrical parts adjustment

Power supply circuit board

P5
DC300

P1
POWER
P4
ACIN

P3 P2 PER
DC18

Outside of the panel

Programmer cord

Panel circuit board

Panel P-ROM
(PL)

P4
OPTION 2

P3
OPTION 1

P2
PGM

P5 P1 FDD
DRV

76 BAS-311E.311EL.326E.326EL
 Chapter 6 Power supply and electrical parts adjustment

Programmer and programmer circuit board

LCD inverter
Operation panel

LCD

Programmer P - ROM

Programmer PCB LCD contrast VR

BAS-311E.311EL.326E.326EL 77
Chapter 6 Power supply and electrical parts adjustment

■ Contact failure
• The connectors functions are divided into four categories. Some connectors may belong to more than one group. Be
sure to investigate another category if a problem is not found in one category.
• Ffor the details of connections, refer to the control circuit block diagram at the end of this manual.

1. Feed mechanism

Problem Connector No. and position

• Home position is not properly detected.

Main PCB
• Error [E.A1] appears.

X home Y home
position position
sensor sensor

• Forward feed does not operate correctly.

Main PCB
• Error [E.A1] appears.

Y pulse motor

• Sideways feed does not operate correctly.

Main PCB
• Error [E.A1] appears.

X pulse motor

2. Work clamp lifter and thread trimmer mechanisms

• The work clamp does not operate.

• The machine does not operate. Main PCB
Control
box

Foot switch

• The work clamp does not operate. BAS-311E (Solenoid type)

• Thread trimming is not performed. Main PCB
• Thread wiper does not operate.
• The work clamp does not oeprate.

Thread Sewing Presser

Wiper
trimming clamp foot
solenoid
solenoid solenoid solenoid

78 BAS-311E.311EL.326E.326EL
 Chapter 6 Power supply and electrical parts adjustment

• The work clamp does not operate.

Main PCB
• (For BAS-311E solenoid type, there is no need to carry out wiring to
air valves.)

Air valve

3. Sewing operation

• The power lamp is not lit, and nothing operates. Power supply circuit board

• Machine operation is unstable.

Conversion transformer

Power switch

• The power lamp is not lit, and nothing operates. Power supply circuit board

• Machine operation is unstable.

• The feed mechanism does not operate.
• The work clamp and the presser foot do not operate.
• Error [E.A1] appears.

Main PDB

• The machine motor does not run. Power supply circuit board
• Motor operation is unstable.
• Needle up stop position is not correct.
• Error [E.20] appears.
• Error [E.22] appears.

Main PDB

• The machine motor does not run. Power supply circuit board
• Motor operation is unstable.
• Needle up stop position is not correct.
• Error [E.20] appears.
• Error [E.22] appears.

Main PDB

• The machine motor does not run.

Main PCB
• Motor operation is unstable.
• Needle up stop position is not correct.
• Error [E.20] appears.
• Error [E.22] appears.
Synchronizer

BAS-311E.311EL.326E.326EL 79
Chapter 6 Power supply and electrical parts adjustment

• The machine motor does not run. Main PCB

• Motor operation is unstable.
• Needle up stop position is not correct.
• Error [E.20] appears.
• Error [E.22] appears.
Machine motor

4. Programmer operation

• The programmer does not operate. Ponel circuit board

• No switches on operation panel operate.

Programmer circuit board

• Keys on the programmer respond, but nothing appears on the

Programmer circuit board
display. (P1-LCD)
• Display of the programmer is not lit. (Inverter for P3-LCD)

LCD inverter

5. Others

• The DC fan motor does not run. Main PCB

• Error [E.c5] appears. (P10 FAN-R)
• Error [E.c1] appears. (P10 FAN-L)

DC fan DC fan

• Error [E.F1] appears. Power supply circuit board

Main PDB

Main PCB
• Indication is strange.
• Any switch does not have any effect.
• The power lamp is not lit.

Ponel circuit board

80 BAS-311E.311EL.326E.326EL
 Chapter 6 Power supply and electrical parts adjustment

• Error [E.12] appears.

• Emergency stop switch is rejected. Main PCB

EM switch

• Error [E.40] appears.

Ponel circuit board

Floppy disk

BAS-311E.311EL.326E.326EL 81
Chapter 6 Power supply and electrical parts adjustment

5. DIP switches
Note: When changing DIP switch setting the power must be off.

Panel DIP switch functions

■ DIP switch A
SW No. When ON
After sewing is complete, the work clamp is raised by the operator
A -1
and does not rise automatically.

• Various setting combinations for DIP switches No.2, No.3 and No.4 can be used to change the way the work clamp is
raised and lowered.
• For pneumatic work clamps, the operation mode can be changed using the two-stage work clamp switch.

SW A-2 SW A-3 SW A-4 Type Function of work clamp pedal

------ ------ ------ Solenoid Work clamp and presser foot rise and lower simultaneously.

Only work clamp rises and lowers; presser foot lowers

ON ------ ------ Solenoid
when starting switch is pressed.

------ ON ------ Pneumatic For split-type work clamp the left/right order changes alternately.

Pneumatic Only work clamp rises and lowers; presser foot lowers
ON ON ------ Pneumatic
when starting switch is pressed.
ON Pneumatic Work clamp and presser foot rise
------ ------ ON Pneumatic and lower simultaneously.
Right work clamp, left work clamp and presser foot lower in this order.
ON ------ ON Pneumatic They rise in the reverse order.
Left work clamp, right work clamp and presser foot lower in this order.
------ ON ON Pneumatic
They rise in the reverse order.
Both left and right work clamps, and presser foot lower in this order.
ON ON ON Pneumatic
They rise in the reverse order.

82 BAS-311E.311EL.326E.326EL
 Chapter 6 Power supply and electrical parts adjustment

SW No. When ON

A-5 After sewing is completed, work clamp does not automatically rise (only in split mode).

A-6 Clamping force output is produced (Inner clamping device available as an option).

Single-pedal operation using the starting switch; when the starting switch is pressed, the work clamp
A-7
lowers, and when it is released, sewing starts.

A-8 Thread breakage detector device is activated (available as an option).

■ DIP switch B

SW No. When ON

B-1 Single split mode activated

B-2 ----------------

B-3 Thread is not trimmed after an emergency stop.

B-4 Needle cooler output is produced. (available as an option).

When a rotating-type thread breakage detector device is used,

B-5 detection precision is changed from 8 to 14.
When a fiber-type thread breakage detector device is used, detection precision is changed from 5 to 10.

B-6 Fiber-type thread breakage detector device is ON, and DIP switch A-8 is ON (available as an option)

B-7 When using a 3-stage pedal

B-8 Feeding speed is switched to high speed.

BAS-311E.311EL.326E.326EL 83
Chapter 6 Power supply and electrical parts adjustment

DIP switches inside the control box

DANGER
Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from
the wall outlet before opening the face plate of the control box. Touching areas where high volt-
ages are present can result in severe injury.

Main PCB

■ DIP switch C
c-1 c-2 c-3 Model Area (X, Y)

− − − − −
ON − − BAS311E 130×60
− ON − BAS326EL 220×100
ON ON − − −
− − ON − −
ON − ON − −
− ON ON − −
ON ON ON BAS311EL 220×60

SW No. When ON

c-4 Controlled sewing area becomes 1200 mm × 400 mm

5 For pneumatic type, set to ON when the connection has been changed so that the work clamp remains
c-5
raised when the power is turned off.

c-6 Stepping work clamp operated by air pressure is used (when solenoid type is standard).

c-7 ----------------

c-8 ----------------

84 BAS-311E.311EL.326E.326EL
 Chapter 6 Power supply and electrical parts adjustment

■ DIP switch D

SW No. When ON

D-1 The first two stitches at the sewing start will be sewn at low speed (approx. 260 spm).

D-2 The last two stitches at the sewing end will be sewn at low speed (approx. 260 spm).

D-3 ----------------

D-4 The last two stitches at the sewing end will be sewn at low speed (approx. 700 spm).

D-5 ----------------

D-6 Slow-speed sewing at the sewing start will be canceled.

When the upper shaft is stopped, the motor will change direction and the needle bar will return to the
D-7 vicinity of the needle up stop position.

D-8 During an emergency stop, the thread is trimmed and the needle bar stops in the raised position.

BAS-311E.311EL.326E.326EL 85
Chapter 6 Power supply and electrical parts adjustment

6. Changing special functions using the memory switches

The functions of the switches on the operation panel can be changed to carry out special functions.
Note:The following are special uses. All the memory switches are set to OFF before shipment from the factory.

電源
BAS-300E series POWER

プログラムNO.
NO. メニュー 下糸設定 下糸交換
PROGRAM NO. MENU B.T.. SET B. . CHANGE
B.T.

横倍率
e X-SCALE
縦倍率 y
Y-SCALE
r スピード
SPEED
テスト ステッ
テップバック
下糸カウンター
B.T. COUNTER TEST STEP BACK
読/書 スプリット NＯ.
R/W SPLIT NＯ.

q w

1. Turn on the power switch.

2. While pressing the TEST switch q, press the STEP BACK switch w to switch to setting mode.
3. Press the program select switch r so that the number displayed on the display screen e matches the switch number
(00 - 3F) for the function that you would like to select from the table.
4. Press the STEP BACK switch w to switch the setting appearing in the display screen t from OFF to ON.

If pressed once more:

■ If the B.T. CHANGE switch y is pressed at this time, all memory switch settings will be changed to OFF.

5. Press the TEST switch q. The display will return to normal.

86 BAS-311E.311EL.326E.326EL
 Chapter 6 Power supply and electrical parts adjustment

■ Memory Switches (00 – 0F)

SW No. When ON

When moving to the home position, the feed plate moves in the order X → Y and the start position
memo-00
moves in the order Y → X.

When moving to the home position, the feed plate moves in the order Y → X and the start position
memo-01
moves in the order X → Y.

The forward position becomes the home position, and movement is in the order Y → X and X → Y.
memo-02
Used for attaching buttons.

Automatic ejector operates. (It is available by special order.)

memo-03 DIP switch A-7 is set to ON. Cassette is held by automatic ejector and the sewing machine
automatically starts.

memo-04 Needle stops in up position during emergency stop: (Needle normally stops in down position.)

memo-05 When sewing is finished, the feed plate moves via the machine home position to the start position.

memo-06 After the final stitch, the work clamp rises and then the feed plate returns to the start position.

memo-07 Intermittent work clamp is not used (does not rise).

When using an alternating clamping presser (1/4 ON, 3/4 OFF), and when sewing overlapping
memo-08
rectangles.

memo-09 Wiper is changed to pneumatic wiper. (Pneumatic wiper is available as an option.)

memo-0A Jog feeding becomes faster during programming.

memo-0b ON when a two-stage tensioner is used. (Two-stage tensioner is available as an option.)

memo-0c Single-pedal operation by means of two-stage work clamp switches. DIP switch A-2 is ON

memo-0d Clearing the emergency stop switch action is carried out using the STEP BACK switch.

memo-0E Test feeding is carried out at the same speed as normal sewing. (For checking feed operation)

memo-0F After sewing is finished, the work clamp automatically opens and closes once (practice operation)

■ Memory Switches (20 – 2F)

SW No. When ON

memo-20
During feed test operation, feeding 100 stitches at a time is possible using the STEP BACK ç
switch.

memo-21
After the home position is detected and the machine moves to the sewing start position, the ç
work clamp rises automatically.

memo-22 When extended option output No.1 is ON, the sewing machine starts automatically. ç

memo-23 Set to ON when the bobbin changer is being used. (This part is available by special order.) ç

Note:C indicates that these functions are available for software versions MN-C or later.

BAS-311E.311EL.326E.326EL 87
Chapter 6 Power supply and electrical parts adjustment

■ Memory Switches (10 – 1F)

SW No. When ON

memo-10 Milling device can be used (available as an option).

memo-11 Bobbin thread counter and production counter operate every time thread is trimmed.

Work clamp is lowered by pressing work clamp first stage switch twice, without using work clamp
second stage switch. When DIP switch A-2 is set to ON, right work clamp and left one are lowered
memo-12
in this order; when OFF, left work clamp and right one are lowered in this order. They are raised
simultaneously.

When the work clamp is lowered, pressing the start switch causes locking; if the switch is released
before locking, the work clamp is raised. When DIP switch A-2 is set to ON, the right work clamp
memo-13
and the left one are lowered in this order; when OFF, the right work clamp and the left one are
lowered in this order. They are raised in the reverse order.

memo-14 Needle up error is detected.

ON when machine is equipped with signal tower indicator.

memo-15
(This indicator is available by special order.)

ON when machine is equipped with thread nipper. (Thread nipper is available by special order.)
memo-16
After presser foot rises, thread nipper will operate.

memo-17 ON when machine is equipped with reset switch. (Reset switch is available by special order.)

When the start switch is pressed, the right work clamp and the left one are lowered in this order,
and sewing starts. When the work clamp first stage switch is pressed, the left work clamp and
memo-18
right one are lowered in this order (when DIP switch A-2 is set to ON). When DIP switch A-2 is set
to OFF, the order is reversed.

Produces three work clamp signal outputs (right and left work clamps, and presser foot) so that a
memo-19
two-position air valve can be used. (Two-position air valve is available by special order.)

When using a triple pedal (DIP switch B-7 is also ON), the right is used exclusively to detect the
home position. If DIP switch A-7 is OFF, the left pedal causes left and right work clamps to be
memo-1A
raised and lowered simultaneously. If ON, the left pedal causes the left work clamp to be raised
and lowered, and the starting pedal causes the right work clamp to be lowered.

memo-1b B430E single foot pedal can be used. DIP switch A-7 should be ON.

memo-1c Bobbin thread counter is decremented at the start of sewing.

memo-1d An air pressure drop detection switch is used. (This detection switch is available by special order.)

memo-1E Split number is changed automatically.

memo-1F Program number is changed automatically.

88 BAS-311E.311EL.326E.326EL
 Chapter 6 Power supply and electrical parts adjustment

■ Turn the dial while pressing the STEP BACK switch to change the values.
Turn the dial while pressing the STEP BACK switch to change the values.

SW No. Possible setting Units Initial Explanation

range value

Time until feed mechanism starts moving after

memo-30 1 - 999 x 10ms 10
work clamp has lifted.

memo-31 1-4 ---- 1 Changes the feed speed. 1 (Fast)    4 (Slow)

Changes the possible sewing speed for a given stitch length.

1 (Fast) 7 (Slow)
1 (2,700/3 mm), 2 (2,600/3 mm), 3(2,500/3 mm),
memo-32 1-7 ---- 3 4 (2,300/3 mm), 5 (2,000/3 mm), 6 (1,800/3 mm),
7 (1,200/3 mm)
Settings 1 and 2 are outside the warranty specification at the
time of shipment from the factory.)

Changes the feed timing

memo-33 1 - 10 x 7.5° 5
1 (Fast)    5 (standard)    10 (Slow)

Number of stitches sewn at 400 spm (10W speed) at sewing

memo-34 1-5 ---- 0
start

Solenoid ON time changes when work clamp is being

memo-35 10 - 60 Xms 40 lowered (solenoid specifications only)
10           60
(Quiet) (High work clamp capacity)

Solenoid ON time to raise presser foot is changed.

memo-36 1-3 ---- 1 (Standard) 1   3 (Upper limit)
ç
1 (10 ms) 2 (20 ms) 3 (30 ms)

Gear ratio is automatically corrected when 2DD data is read.

0: Follows the model specified in DIP switch C.
1: Reads 2DD data as 311A data.
2: Reads 2DD data as 326A data.
memo-37 0-3 ---- 3
3: Reads 2DD data as 341A/342A data.
[This function is available when panel PROM indication is
PL-C or later.]

Delay time from the point when the cassette is

memo-38 1 - 20 X0.1S 1 clamped to the start of sewing when DIP switch A7 is Î
ON during automatic sewing

[Set value]
0: Sensor home position, 1: Center of sewing area, 2: Upper
left of sewing area, 3: Lower left of sewing area, 4: Upper
right of sewing area, 5: Lower right of sewing area, 6:
Sewing start point, 7: Sewing end point, 8: Upper left of
mask, 9: Lower left of mask, 10: Upper right of mask, 11:
Lower right of mask
[Procedure]
1. Select memory switch 39.
memo-39 0 - 11 ---- 0 2. Change X and Y scales.
3. Step on start switch to return to home position, and
sewing data can be created with specified scales.
[Mask]
Upper left ¡ Mask is a rectangular frame
of mask to cover the rounded edges
of sewing data.
¡ In the left figure, an oval is
Lower left sewing data, and the
of mask rectangle indicated with a
broken line is the mask.

Note:Ç · Î · Ï indicates that these functions are available for software versions MN-C · MND · MN-F or later.
BAS-311E.311EL.326E.326EL 89
Chapter 6 Power supply and electrical parts adjustment

SW No. Possible setting Units Initial Explanation

range value
memo-3A
1-3 ---- 2 Change speed limit by stitch length.
(Max. speed remains same)
1:Speed limit by stitch length is up,sewing speed increases.
2:Standard
3:Speed limit by stitch length is down, sewing speed
decreases.
* In case drifting problem occurs at a part of large stitch
length, select 3.
* If you select 1, Please be careful because drifting might Ï
occur depending on sewing condition.

memo-3B -
---- ---- 0 ----
memo-3F

7. Checking the input sensor and DIP switch input

t
電源

1 2 3 4 5 6 7 8
BAS-300E series POWER A OFF
プログラムNO.
NO. メニュー 下糸設定 下糸交換
PROGRAM NO. MENU B.T. SET B.T.. CHANGE

横倍率
r
u X-SCALE
縦倍率
Y-SCALE
スピード
SPEED
テスト ステッ
テップバック
下糸カウンター B OFF

1 2 3 4 5 6 7 8
B.T. COUNTER TEST STEP BACK
読/書 スプリット NＯ.
R/W
q SPLIT NＯ.

y\ w\

1. When the SPLIT NO. indicator q is lit and the R/W switch e is pressed while the TEST switch w is being pressed, the
X-SCALE indicator r will be lit and the state of the X home position signal will appear on the display t.

■ When sensor is ON

■ When sensor is OFF

2. Each time the MENU switch y is pressed, a different indicator will illuminate and the operating condition for the
corresponding item will appear on the display.
¡When X-SCALE indicator is lit : X home position sensor
¡When Y-SCALE indicator is lit : Y home position sensor
¡When SPEED indicator is lit : Needle up signal (synchronizer)
¡When B.T. COUNTER indicator is lit : 24-split signal (synchronizer)
¡When SPLIT ON. indicator is lit : Needle down signal (synchronizer)

3. If the settings for DIP switch A at the side of the operation panel are changed at this time, the changed switch number
will appear in the left digit of the PROGRAM NO. display u.

4. If the settings for DIP switch B are changed at this time, the changed switch number will appear in the right digit of the
PROGRAM NO. display u.

90 BAS-311E.311EL.326E.326EL
 Chapter 6 Power supply and electrical parts adjustment

8. Checking the input voltage

1. Turn on the power switch.
2. Press the MENU switchq until the X-SCALE indicator w is lit.

スプリット
SPLIT NO.NＯ.
X-SCALE
SPLIT NＯ. 横倍率
X-SCALE
q `
w

3. While pressing the TEST switch e, press the R/W switch r.

テスト
TEST
読/書
R/W
e\
r

4. If the input voltage is normal, the input voltage conditions will be shown in the display as shown below.

200-V specifications 090 - 110

"100" is displayed when the input voltage is 200 V.
220-V specifications 100 - 120

230-V specifications 105 - 125

"110" is displayed when the input voltage is 100 V (for 100-V
100-V , 380-V , 400-V and specs.), 380 V (for 380-V specs.) or 415 V (for 415-V specs.).
100 - 120
415-V specifications

5. Press the TEST switch e once more to return the display to the normal condition.

9. Clearing all memory settings

¡If the sewing machine stops operating normally, the cause may be that an incorrect memory setting has been made
by means of the memory switch, for instance. In this case, carry out the following procedure to clear the memory, and
also check the DIP switch settings.

■While pressing the R/W switch, turn on the power. This will clear all of the memory settings.

読/書
R/W

BAS-311E.311EL.326E.326EL 91
Chapter 6 Power supply and electrical parts adjustment

10. Confirming software version

電源
BAS-300E series POWER

プログラムNO. メニュー 下糸設定 下糸交換

PROGRAM NO. MENU B.T. SET B. . CHANGE
B.T.

横倍率
X-SCALE
縦倍率
Y-SCALE
スピード
SPEED
テスト ステッ
テップバック
下糸カウンター
B.T. COUNTER TEST STEP BACK
読/書 スプリット NＯ.
R/W SPLIT NＯ.

w\ q\

1. While pressing the TEST switch q, turn on the power to the machine. Version number of each PROM can be con-
firmed.

■Program NO display ■Menu display

2nd digit 4th and 5th digits: Special specification

1st digit:PROM identification code 3th digit:Version number versions A,B, and C are
replaced with 1,2, and 3 respectively.

2. Every time the MENU switch w on the panel is pressed until the TEST switch q is pressed again, the indication will
change as follows:

Indication LED of MENU switch PROM

(A) X-SCALE Main PROM (MN)
(b) Y-SCALE Motor PROM (MT)
(c) SPEED Programmer PROM (PG)
(d) B.T.COUNTER Panel PROM (PL)

■Version number indication (example)

PROM label
BAS300E
Indication [A0] [300]
MN-C

BAS300E
Indication [d0] [403]
PL-D03

92 BAS-311E.311EL.326E.326EL
 Chapter 6 Power supply and electrical parts adjustment

11. Error codes

NOTE ¡If an operation problem occurs, a buzzer will sound and an error code will appear on the display screen; if a
programmer is connected, an error message will appear on the screen.
¡Wait 10 seconds or more after turning the power off before turning it back on again.

Code Cause Remedy

Press the emergency stop switch once more to

E.10 Emergency stop switch was pressed.
cancel.

Press the emergency stop switch once more to

Emergency stop switch was pressed during
E.11 cancel. The STEP BACK switch can then be used to
sewing.
resume sewing.

Emergency stop switch is being continually

E.12 Turn off the power and check.
pressed, or emergency switch connection error.
Turn off the power, and then turn the machine pulley
Problem with machine motor stopping, or to check if the machine has locked up. Check the
E.20
synchronizer connection error. synchronizer connection. Check if connectors P14, P15
or P16 are disconnected.
Turn off the power and check the ground wire
E.21 Machine motor operation error.
connection.
Turn the pulley to align the index mark with the
E.22 Needle up stop position error.
needle up stop position. Check the V-belt tension.
Data is outside possible sewing area due to
E.30 Check the enlargement or reduction ratio setting.
enlargement or reduction ratio setting.
Data pitch exceeds 12.7 mm due to enlargement
E.31 Check the enlargement or reduction ratio setting.
or reduction ratio setting.

E.32 No end code was input into sewing data. Input an end code, or change the program number.

Insert a floppy disk. If floppy disk is already inserted,

Floppy disk is not inserted, disconnected cord
E.40 turn off the power and check the connections of cords
inside operation panel, or malfunction of drive.
inside the operation panel.
Program number is invalid, no data, or floppy disk
E.41 Check the floppy disk.
is not formatted.
Floppy disk changed from readable disk when
E.43 setting the bobbin thread or when setting the Replace with readable floppy.
memory switch.

E.4F Other error when reading floppy disk. Replace the floppy disk and repeat the operation.

E.50 Floppy disk is write-protected. Remove the write-protection.

E.51 Insufficient space on floppy disk. Use a different floppy disk.

E.52 Floppy disk cannot be formatted. Replace the floppy disk and repeat the operation.

E.5F Floppy disk write error. Repeat the operation.

E.60 Data backup is not possible (Panel PCB) Turn off the power, wait a while and then turn it back
on. If the error appears continually, contact a qualified
E.61 Data cannot be backed up. (Control PCB) service technician.

E.70 Option output numbers are duplicated. Change the option output number.

Thread breakage error detected by rotating-type

E.80 Thread the upper thread. Sewing can then resume.
thread breakage detector device.
Upper thread breakage error detected by optical
E.81 Thread the upper thread. Sewing can then resume.
fiber-type sensor.

BAS-311E.311EL.326E.326EL 93
Chapter 6 Power supply and electrical parts adjustment

■ Error codes [E.9 *] - [E.F *]

DANGER
Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from
the wall outlet before opening the face plate of the control box. Touching areas where high volt-
ages are present can result in severe injury.

Code Cause Remedy

Abnormal drop in power supply voltage, or power Turn off the power and check the input voltage. After
E.90 was turned on again immediately after it was turning off the power, wait 3 seconds or more before
turned off. turning it on again.
E.91 Abnormal rise in power supply voltage. Turn off the power and check the input voltage.
Starting switch was pressed without any valid
E.A0 Re-read the sewing data.
sewing data loaded.
Home position point was not detected within a Turn off the power and check the X-Y feed and the
E.A1
certain time during home position detection. home position sensor connection.
E.c0 Motor PROM is not correctly inserted. Turn off the power and check.
The box cooling fan (at the left when looking from Turn off the power and check whether any thread
E.c1
the front) is not operating. scraps have built up.
Heat shink of control circuit board is abnormally Turn off the power and clean the air intake port of the
E.c2
hot. box.
Turn off the power and contact a qualified service
E.c3 Abnormal current detected in X pulse motor.
technician.
Turn off the power and contact a qualified service
E.c4 dAbnormal current detected in X pulse motor.
technician.
The box cooling fan (at the right when looking Turn off the power and check whether any thread
E.c5
from the front) is not operating. scraps have built up.

E.d0 Air pressure drop error. Turn off the power and check.

E.E0 Main PROM is not correctly inserted. Turn off the power and check.

Communication error detected by control circuit Turn off the power, wait a while and then turn it back
E.E1
board. on.
Communication error detected by panel circuit Turn off the power, wait a while and then turn it back
E.E2
board. on.

E.E3 Bad connection in cable between panel and box. Turn off the power and check.

Power relay is not operating (malfunction of Turn off the power and contact a qualified service
E.F0
power supply circuit board). technician.
Bad connection in cable between power supply
E.F1 Turn off the power and check.
circuit board and main circuit board.
Abnormal current detected in power supply circuit Turn off the power and contact a qualified service
E.F2
board. technician.

REFERENCE segment LED alphabet

Panel display

Text display A b c d E F 6 H L O

94 BAS-311E.311EL.326E.326EL
 Chapter 7

Chapter 7. Trouble shooting

■ Explanation of shapes

Indicates manual operation. Indicates setting-up operation.

Indicates switch operation. Indicates that the procedure to follow

appears on the next page.

Selects the course of action to follow, us-

ing a yes-or-no decision-making process.
OFF Indicates turning-off of the power
switch.
Indicates that the procedure to follow ap-
pears in the first column of "problem de-
termination and solution table".

■ Flowchart

Start

Turn on
POWER
switch.

Powering-up
sequence

Is the power NO
OFF #1
lamp lit?

YES

Does any error YES

code appear on the ERROR OFF #1.1
NO. indicator?

NO

Press MENU
switch
a few times.

Does the lit LED NO

change every time you press OFF #1.2
the MENU switch?

YES

Insert the floppy

disk.

BAS-311E.311EL.326E.326EL 95
Chapter 7

Turn on POWER
switch.
Press the PRO
NO. Switch,
then press
the R/W
switch.

Does any error YES

code appear on the ERROR OFF #2
Floppy disk
insertion NO. indicator?

NO

Does an error code YES

appear after the indicator OFF #3
lamp is lit and turned
off?

NO

Turn on POWER
switch.

Step on the
Foot switch.

Do presser foot and NO

Work clamp #4
lifter work clamp move up OFF
mechanism and down?

YES

96 BAS-311E.311EL.326E.326EL
 Chapter 7

Set cassette or
material to be sewn.
Presser foot
and presser
plate operation

Step on the foot

switch to close
the work clamp.

Input sewing data.

Step on the
presser plate
lifter switch.

Does the presser NO

plate return to the OFF #6
home position?

YES

Shifting to
the sewing
start position

Does any error YES

code appear on the ERROR OFF #7
NO. indicator?

NO

Does the presser NO

plate shift to the sewing OFF #8
start position?

YES

BAS-311E.311EL.326E.326EL 97
Chapter 7

Input sewing data

and shift to the
sewing start
position.
Press the
TEST switch.

NO
Is the TEST lamp lit? OFF #9

YES

Step on the start

foot switch.

Is the material fed NO

during sewing stitch OFF #10
by stitch?

YES

Test Step on the

presser plate
lifter switch.

NO
Does the feeding operation OFF #11
get faster?

YES

Release the
presser plate
lifter switch.

Does the presser NO

plate movement match the OFF #12
floppy disk data?

YES

Does
the presser plate NO
return to the sewing start
position without
error?
YES

98 BAS-311E.311EL.326E.326EL
 Chapter 7

Press the TEST

switch to turn off
the TEST lamp.

Input sewing data

and shift to the
sewing start
position.

Step on the
start foot
switch.

Machine does not YES

start and an error code OFF #13
appears?

NO

Does an error code YES

appear after the machine OFF #14
starts?

NO

Sewing Does the presser plate NO

operation move stitch by stitch to OFF #15
sew the material?

YES

Are thread trimmer NO

and thread wiper OFF #16
activated?

YES

Does the machine NO

stop with the needle at the OFF #17
upper position?

YES

Does the
machine return to the NO
sewing start state according OFF #18
to the floppy disk
data?
YES

BAS-311E.311EL.326E.326EL 99
Chapter 7

Input sewing data

and start sewing
operation.
Press the EM
switch while
sewing.

Does
error (E.11) appear NO
when the machine and OFF #19
feeding operation
stops?
YES

Press the EM
switch again.

Does the
machine stop with the NO
needle at the upper position when OFF #20
EMERGENCY lamp goes
off and thread is
Emergency trimmed?
YES
stop and
restarting
operation Press the STEP
BACK switch.

Does the feeding NO

operation reverse stitch OFF #21
by stitch?

YES
Release the STEP
BACK switch and
step on the start
foot switch.

Does the sewing NO

OFF #22
operation restart?

YES

Turn on POWER
Press the ∏
switch.
Key on the
programmer.

Does the presser NO

plate return to the home OFF #23
position?

YES
Programing
device
NO
Is the display illuminated?

YES

Does each key switch NO

function correctly?

YES

Stop
(No abnorm
ality)

100 BAS-311E.311EL.326E.326EL
 Chapter 7

■ Problem solution and measures

Precautions
¡ Pay attention to the following when opening the control box for maintenance.

™ Electrical shock
Some large capacitors may have a high voltage remaining in them for up to 5 minutes after the power is turned off. To
prevent electrical shock, wait at least 5 minutes after the power is turned off before doing the following:
* Opening and closing the control box
* Replacing fuses
* Separating and rejoining connectors
* Measuring resistance
* Doing anything with a possibility of touching something inside the control box
Some adjustments require measuring the voltage while the power is turned on with the control box kept open.
In such a case, be careful not to touch any place other than that for the measurement. In addition, always keep in mind
that a high voltage remains for 5 minutes after the power is turned off.
™ Injury
While the power is turned on, the cooling fan of the control box operates; be careful not to get caught in it.
When separating or rejoining connectors, and measuring something, be careful not to cut your fingers on metal parts
such as the heatsinks and overs.
¡ When replacing a fuse, be sure to use a new one of the same quality and capacity as the old one.
¡ Refer to the circuit block diagram at the end of this manual regarding the connector numbers and their matches.

Before adjustment
¡ While the power is turned off, check each connector is securely plugged in by referring to page 73 “List of connector
numbers and matches.”
¡ Find the error status number in the troubleshooting flowchart.
¡ From the applicable part of the flowchart, take the reference number to find the correspondingly numbered details of
the problem in the following table.

BAS-311E.311EL.326E.326EL 101
Chapter 7

Error status Probable causes Check/repair/adjust Parts to be replaced

1. Conversion transformer improperly Note: Before adjustment, be sure to check that the
wired (for 100 V, 110V specification) power is turned off to prevent electric shock.
To the power supply If the power is turned on, turn off the power,
To the power switch and wait at least 5 minutes.

• Conversion in the control box

Check the transformer is correctly and securely wired
to the terminals.
(For 200 V, 220 V, and 230 V specifications, this is not
necessary.)

(For 240 V, 380 V, 400 V, and 415 V

specifications)
To the power supply circuit board
To the power switch

(For 200 V, 220 V, and 230 V

#1 The
specifications)
power
No conversion transformer is
lamp does
installed.
not light
when the
power is 2. Conversion transformer defective Separate P4 (ACIN) connectors on the power supply Conversion
turned on. circuit board, and check there is continuity between transformer
pins 1 and 2 in the connector on the cable.
If there is no continuity, replace the conversion
transformer.
(For 200 V, 220 V, and 230 V specifications, this is not
necessary.)

3. Power supply cable defective Separate P4 (ACIN) connectors on the power supply Power supply cable
circuit board, turn on the power, and measure the
voltage across pins 1 and 2 in the connector on the
cable.
If the voltage is as shown in the table below, the
power supply cable is not defective.

The same as the

For 200 V, 220 V, and
power supply voltage
230 V specifications
of wall socket

For 100 V, 110 V, 240

V, 380 V, 400 V, and About 220 V
415 V specifications

ACV After checking, turn off the power, and rejoin P4

connectors.

102 BAS-311E.311EL.326E.326EL
 Chapter 7

Error status Probable causes Check/repair/adjust Parts to be replaced

4. Fuse has blown • Remove fuses No.3 and No.4, and check them for Fuse 6A-250A
continuity.
If there is no continuity, replace the fuses with new
ones, and perform the check/repair/adjust items of
#1-5.

5. Power supply circuit board • Separate P4 (ACIN) connectors on the power supply Power supply
 defective circuit board, and then measure the resistance circuit board
between the followin oth cases, the power supply
circuit board is not defective.
• Measure the resistance between pins 1 and 2.
If there is not short, the power supply circuit board is
not defective.
• rejoin P4 (ACIN) connectors on the power supply
circuit board.
Separate P3 (POWER) connectors on the main circuit
board, turn on the power, and measure the voltage
across pins 1 and 3 in the connector on the cable.
If it is + 5V, the power circuit board is not defective.
After measurement, turn off the power wait at least 5
minutes, and then rejoin P3 connectors.

#1
continued

6. Control circuit board defective • With P3 (POWER) connectors plugged in on the Control circuit
control circuit board, turn on the power, and measure board
the voltage across pins 1 and 3 in the connector on
the cable.
If it is + 5V, the power circuit board is not defective.
After measurement, turn off the power.

7. Panel circuit board defective • Check that P18 (PANEL) connectors of the main circuit Panel circuit board
board and P5 (DRV) connectors of the panel circuit
board are plugged in.

BAS-311E.311EL.326E.326EL 103
Chapter 7

Error status Probable causes Check/repair/adjust Parts to be replaced

1. With error code [E.12], the • Check that connector P3 (HEAD) on the control EM switch
emergency stop switch is circuit board is securely inserted and the assembly
activated, or it is defective. emergency stop switch is correctly wired.

2. With error code [E.21], the • Check that grounding is securely made and there Control circuit
machine is malfunctioning. is no equipment that generates strong electrical board
noise nearby.

3. With error code [E.60], the panel • Turn on the power again. If nothing changes, Panel circuit
circuit board is defective. panel PCB is defective. board

4. With error code [E.61], the • Turn on the power again. If nothing changes, Control circuit
control circuit board is defective. control PCB is defective. board

5. With error code [E.90], the power • Check that the voltage of a socket is within ±10%
supply voltage has sharply of specified voltage.
dropped. • Refer to #d1-1, -1, -3

6. With error code [E.91], the power • Refer to #1.1-5

#1 The supply voltage has sharply risen.
power
lamp does
not light
when the
power is 7. With error code [E.c0], the [MT] • Refer to #1.1-13 PROM
turned on. PROM on the control circuit
board is defective.

8. With error code [E.c1], the box • Check whether any thread scraps are not Fan motor 
cooling fan (at the left when entangled in the cooling fan. assembly
viewed from the front) is • Check that connector P10 (FAN-R) on the control
defective. circuit board is securely inserted.

9. With error code [E.c2], the • Clean the air intake of the control box. Control circuit
control box has overheated. • The temperature detector is screwed into the board
heatsink on the control circuit board. Turn on the
power after the temperature of the heatsink falls.
If the error still appears, the control circuit board
is defective.
• Note: If the machine is operating with the control
box open, the heatsink will overheat, resultantly,
error [E.c2] will occur.

10. With error code [E.c3], • Check that connector P7 (XPM) on the control X pulse motor
overcurrent has occurred in X- circuit board is securely inserted and the X-pulse control circuit
pulse motor. motor is securely plugged in. board
• Refer to #1.1-2

104 BAS-311E.311EL.326E.326EL
 Chapter 7

Error status Probable cause Check/repair/adjust Parts to be replaced

11. With error code [E.c4], • Check that connector P6 (YPM) on the control Y pulse motor
overcurrent has occurred in Y- circuit board is securely inserted and the Y-pulse control circuit
pulse motor. motor is correctly wired. board.
• Refer to #1.1-2

12. With error code [E.c5], the box • Refer to #1.1-8 [E.CI] Fan motor
cooling fan (at the right when • Check that connector P25 (FAN-L) on the control assembly
viewed from the front) is circuit board is securely inserted.
defective.

13. With error code [E.E0], the [MN] • Check that the PROM of the control circuit board PRON
PROM on the control circuit is securely inserted and its leads are not bend.
board is defective. • Check that MN and MT of the PROM are matching
those on the main PCB.

#1 The
power
lamp does
not light • If the PROM has no problem, check the Panel code
when the connection between pin 3 in connector P18
power is (PANEL) on the control circuit board and pin 5 in
turned on. connector P5 (DRV) on the panel PCB.

14. With error code [E.F0], the relay • Check that the PER code is securely inserted (refer Power PCB
on the power PCB is not to #1.1-15). If the error appears, replace the
working. power PCB with a new one.

15. With error code [E.F1], the cord • Check that connector P2 (PER) of the power PCB PER code.
is not securely inserted. and connector P20 (PER) on the main PCB are
securely inserted. Check there is no damage in
wiring.

16. With error code [E.F2], • Find a cause of noise. (Refer to #1.1-2.) Power PCB
overcurrent has occurred in • Replace the power PCB . (Refer to #1.1-14.)
power PCB.

1. Panel PCB is not correctly • Check whether the panel setting plate makes
attached. contact with a switch.

#1.2
No
switches 2. Panel PCB is defective. • Refer to #1-7 Panel circuit
on the board
panel are
not
activated.
3. Programmer detective. • Pull out the programmer. If a switch is activated, Programmer
the programmer is defective.

#2 1. With error code [E.40], the cord • Check the connections and pins between FDD Harness
If the R/W or the floppy disk drive (FDD) is connector P1 on the panel PCB and the FDD, and
switch is defective. between connectors CH1 and CH2 on the panel
pressed, PCB and the FDD.
the • Replace the floppy disk drive. Floppy disk drive
indicator
lamp is not
lit and an
error code
appears.

BAS-311E.311EL.326E.326EL 105
Chapter 7

Error status Probable causes Check/repair/adjust Parts to be replaced

1. With error code [E.40], a floppy • When a floppy disk is inserted into the FDD, check Drive device
disk is not inserted. the sound of the motor.

#3
After a few
seconds 2. With error code [E.41] or [E.4F], • When error code [E.40], [E.41], or [E.4F] appears, Floppy
after the the floppy disk is defective. insert other floppy disk into the FDD.
R/W switch
If the FDD reads the floppy disk, the original disk
is pressed,
an error is defective.
code
appears.
3. Panel circuit board defective Panel circuit
board

1. Foot switch and code defective (Make sure that the power is turned off.) Foot switch
• Remove the connector for foot switch connected
to the outside of the control box, and check the
1 - 2 Presser foot
Connector on the cord continuity between pins 1 and 2, and pins 7 and 8
in the connector on the cord. (For pneumatic
specification, check the continuity between pins 3
and 4.)
The continuity in each case should be normally ∞
Ω or 0 Ω when the switch is stepped on.

7 - 8 Start 3 - 4 Second switch Presser

(Pneumatic only)

#4
The work 2. Any cord in the control box is • Insert the connector checked above, open the Foot switch code
clamp does assembly
defective. control box, and check the continuity between
not move
pins 1 and 2, pins 3 and 4, pins 5 and 6 in
up and
down connector P19 (FOOT) on the PCB.
when the (Without removing the connector, put a tester
foot switch from the lead side.)
is stepped
The continuity in each case should be normally ∞
on.
Ω or 0 Ω when the switch is stepped on.

Start Presser Second switch

foot Presser
(Pneumatic only)

3. Fuse blown • Remove fuse no.1 and check the continuity. (Quick melting
type 5A-250V
(If there is no continuity, go to the next item.)

106 BAS-311E.311EL.326E.326EL
 Chapter 7

Error status Probable causes Check/repair/adjust Parts to be replaced

4. Power PCB defective. • Measure the resistance between a terminal in the Power PCB
center of the power PCB and pin 2 in connector P5
(DC300).
The resistance should be ∞Ω.

• Remove connector P12 (POWER) on the control

circuit board, turn on the power, and measure the
voltage across pins 4 and 6, pins 5 and 6, pins 5
and 7 on the cord.
The voltage in each case should be +55V.
Measure the voltage across pins 2 and 3. The
voltage should be +20V to 24V.
After measurement, turn off the power, wait at
least 5 minutes, and insert P12.

Work clamp for pneumatic specification (BAS-311E and 325E)

#4
The work
clamp does 5. The air valve is defective. • Pull out connector P4 (AIR) on the control circuit Air valve
not move board and measure the resistance between the Valve harness assy.
up and following pins in the connector on the cord:
down Pins 1 and 10 (air valve for right work clamp)
when the Pins 2 and 10 (air valve for left work clamp)
foot switch Pins 3 and 10 (air valve for presser foot; only
is stepped for optional specification)
on. The resistance in each case should be 300 - 400 Ω.

6. The control circuit board (#3) is • Pull out connector P4 (AIR) and measure the Control circuit
defective. voltage across the following pins in the connector board.
on the PCB:
Pins 1 and 10 (air valve for right work clamp)
Pins 2 and 10 (air valve for left work clamp)
Pins 3 and 10 (air valve for presser foot; only
for optional specification)
The voltage in each case should be +20V to 24V.
After measurement, turn off the power, wait at
least 5 minutes, and insert P4.

BAS-311E.311EL.326E.326EL 107
Chapter 7

Error status Probable causes Check/repair/adjust Parts to be replaced

Work clamp and presser foot for solenoid specification (BAS-311E)

7. Solenoid is defective. • Remove connector P5 (SOL) on the control circuit Solenoid

board, and measure the resistance between the Solenoid code
#4
following pins in the connector on the cord:
The work
Pins 1 and 2 (presser foot): approx. 5-6 Ω.
clamp does
Pins 3 and 4 (work clamp): approx. 5-6 Ω.
not move
Pins 5 and 6 (thread trimmer): approx. 7-8 Ω.
up and
Pins 7 and 8 (thread wiper): approx. 6-7 Ω.
down
Work clamp Presser foot
when the
foot switch
is stepped 8. Control circuit board is defective. • Remove connector P5 (SOL) on the control circuit Control circuit
on. board, turn on the power, and measure the voltage board.
across the following pins in the connector on the
control circuit board:
Pins 1 and 2 (presser foot): 0 or +55V
Pins 3 and 4 (work clamp): 0 or +55V
Work clamp Presser foot

#6
1. Foot switch and cord are • Refer to #4-1 Foot switch
When the
defective.
start switch
is stepped
on, the
work clamp
does not 2. Any cord in the control box is • Refer to #4-2 Foot switch code
return to its defective. assembly
home
position.

1. When the feed mechanism does • Refer to #4-3 (Quick melting type
not move and error code [E.A1] 5A-250V)
appears, fuse has blown.

2. When the feed mechanism does • Refer to #4-4. Power PCB

not move and error code [E.A1]
appears, the power PCB is
defective.

#7 3. When the feed mechanism • Turn power off and then on again. Move the feed Home position
When the moves in the unusual direction mechanism manually around the home position to sensor
start switch and error code [E.A1] appears, check whether the LED of the home position sensor
is stepped the home position sensor is is lit.
on, an defective. (The feed mechanism can be moved manually before
error code the home position is detected.)
appears. • Set the input sensor check mode to check the sensor Control circuit
input. (Refer to page 90, "7. Checking the input board
sensor and DIP switch input".) If the above step (a) is
approved, and the sensor input can not be changed,
the cord or the control circuit board is defective.

4. When the feed mechanism • Remove connectors P6 (YPM) and P7 (XPM) on the Pulse motor
operation is unusual, the pulse control circuit board, and measure the resistance Pulse motor
motor is defective. between the following pins in the connector on the harness
P6 (YPM) or P7 (XPM)
cord:Pins 1 and 2, pins 2 and 3, pins 3 and 4, pins 4
and 5, and pins 5 and 1.
The resistance in each case should be approx. 2.0 -
2.5 W.
After measurement, return connectors P6 and P7 to
their original positions.

108 BAS-311E.311EL.326E.326EL
 Chapter 7

Error status Probable causes Check/repair/adjust Parts to be replaced

1. Pulse motor has been out of • If the work clamp or material to be sewn is
control because of insufficient sluggish, set DIP switch B-8 to off and set the feed
torque. (The feed mechanism speed to low.
does not move as programmed.)
#8
The work
clamp does 2. Mechanical adjustment is not • Turn the power off and then on again. Move the
not move sufficient. feed mechanism manually to check that it can
to the easily move around the sewing area.
sewing
start
position.
3. Pulse motor defective. • Refer to #7-4 Pulse motor

4. The control circuit board is Control circuit

defective. board.

#9 1. Panel circuit board is defective. • Refer to #1 and #2 (panel switch). Panel circuit board
The TEST
lamp is not
lit when
the TEST
switch is
pressed.

• Refer to #6, #7, and #8

#10
No feeding
operation
occurs
during the
test.

1. Foot switch and cord defective • Refer to #4-1

#11
Rapid feed
can not be
performed
during the
test.

#12 • Refer to #8
The
machine
does not
operate as
programm
ed during
the test.

#13 1. Cord is defective. • Check that connector P3 (DC18) on the power PCB Power supply
The and connector P16 (DC18) on the control circuit harness H-P
machine board are securely inserted.
does not • Check that connector P5 (DC300) on the power
PCB and connector P15 (DC300) on the control Motor power cord.
operate for
sewing and circuit bard are securely inserted.
error [E.20] • Check that connector P14 (UVW) on the control
appears. circuit board is securely inserted and there is no
looseness of the machine motor.

BAS-311E.311EL.326E.326EL 109
Chapter 7

Error status Probable causes Check/repair/adjust Parts to be replaced

2. The control circuit board is • Remove connector P15 (DC300) on the control Control circuit
defective. circuit board, and measure the resistance between board.
pins 1 and 2 in the connector on the control circuit
#13 board.
The (A digital meter can not be used.) Using X1K Ω
machine range, the needle should indicate 10K Ω -30K Ω.
does not After measurement, return P15 to its original
operate for position.
sewing and (If this measurement is not approved, check
error [E.20] control circuit board fuses nos. 2, 3, and 4. They
Red
appears. may be blown.)
Black

1. When error code [E.20] appears • Check that connector P2 (SYNCHRO) on the Synchronizer
after the machine operates, the control circuit board is securely inserted and there assembly
synchronizer is defective. is no damage in the synchronizer cable.

#14
After the 2. When error code [E.20] appears • Turn the pulley manually to check it can easily
machine after the machine operates, the rotate.
operates, machine has been locked due to
an error insufficient adjustment.
code
appears.
3. When error code [E.90] appears • Refer to #1.1-5
after the machine operates, the If the power supply capacity per machine is 600VA
power supply voltage has or more, the voltage sharply drops as soon as the
sharply dropped. machine starts, resulting this error to appear.

1. The synchronizer is defective. • Refer to #14-1. Synchronizer

#15 Even if the synchronizer is defective, the test assembly
The feeding will be performed correctly.
machine
cannot sew
patterns as
pro- 2. The feed mechanism does not • Refer to #8-1, 2, 3, 4.
grammed. move as programmed.

1. Mechanical adjustment is • Remove the covers. If the solenoids for thread

insufficient. trimmer and thread wiper do not operate, check
the following items.

2. The solenoid is defective. • Refer to #4-7. (When measuring for thread wiper, Solenoid
turn on the thread wiper switch.) Solenoid harness
#16
Thread
trimmer
and thread
wiper do
not Thread wiper Thread trimmer
operate.
3. The control circuit board is • Remove connector P5 (SOL) on the control circuit
defective. board, turn on the power, start sewing, and
measure the voltage across the following pins in
the connector on the control circuit board:
Pins 5 and 6 (thread trimming)
Pins 7 and 8 (thread wiper)
The voltage in each case should be output for an
Thread wiper Thread trimmer instance at the end of sewing.

110 BAS-311E.311EL.326E.326EL
 Chapter 7

Error status Probable causes Check/repair/adjust Parts to be replaced

#17 1. The synchronizer is not properly • If the needle stop position varies at random every
The adjusted. time the machine operation is complete, adjust
machine the needle stop position to the upper position.
does not
stop with
the needle
at the upper
position. Control circuit
2. Control circuit board defective
board.

#18
• Refer to #8-1, 2, 3, 4.
The
machine
can not
sew
patterns as
pro-
grammed.

1. EM switch defective. • Remove connector P3 (HEAD) on the control EM switch

#19 circuit board, and check the continuity on the assembly.
The cord.
operation Between pins 1 and 2:
will not stop 0 Ω normally or ∞ Ω when the emergency
if the stop switch is pressed.
emergency Between pins 2 and 3: ∞ Ωnormally or 0 Ω
stop switch when the emergency stop switch is pressed.
is pressed.

#20 • Refer to #16, #17

The thread
trimmer
does not
operate
after the
emergency
stop switch
is canceled.

1. Panel circuit board defective • Refer to #1 and #2 (panel switch). Panel circuit board
#21
The STEP
BACK
switch is
inoperative.

• Refer to #8-1, 2, 3, 4 and #13, #14.

#22
Sewing is
not
resumed.

• Remove connector P2 (PGM) on the panel PCB

1. The programmer connector and and connector P2 on the programmer PCB, and
its cable are defective. then return them to their positions.
#23
Programmi
2. The programmer is defective. • Replace the programmer with a new one. Programmer
ng can not
be made.
3. Panel circuit, board defective • Replace the panel circuit board with a new one. Panel circuit board

BAS-311E.311EL.326E.326EL 111
Chapter 8.

Chapter 8. 1. Gauge parts list according to subclasses

The following parts are available for the BAS-311E, 311EL, 326E, 326EL for adding further flexibility to the range of appli-
cations.

Model BAS-311E BAS-311EL BAS-326E • (326EL)

Subclass -11 -21 -22 -23 -1 -1 -2

Use Heavy-weight Heavy-weight Medium weight Extraheavy- Medium thick

materials materials(Pneu materials(Pneu weight
materials(Pneu Thick (Air type) Thick (Air type)
materials
Par name (Solenoid type) matic type) matic type) (Air type)
matic type)
Needle hole
plate Needle hole Needle hole Needle hole Needle hole Needle hole Needle hole Needle hole
plate E plate E plate F plate M plate E plate E plate F
(ø2.6) (ø 2.6) (ø2.2) (ø4.0) (ø 2.6) (ø2.6) (ø2.2)
S10212-101 S10212-101 S10213-001 S34348-001 S10212-101 S10212-101 S10213-001

Inner rotary
hook assembly Inner rotary Inner rotary Inner rotary Inner rotary Inner rotary Inner rotary Inner rotary
hook LB hook LB hook LA hook LB hook LB hook LB hook LA
assembly assembly assembly assembly assembly assembly assembly
S15663-991 S15663-991 S1566-992 S15663-991 S15663-991 S15663-991 S1566-992

Large shuttle
hook
Large shuttle Large shuttle Large shuttle Large shuttle Large shuttle Large shuttle Large shuttle
hook B hook B hook A hook B hook B hook B hook A
152686-101 152686-101 152682-101 152686-101 152686-101 152686-101 152682-101

Tension spring
Tension spring Tension spring Tension spring Tension spring Tension spring
Tension spring Tension spring
B B B B B
145519-001 145519-001
144588-001 144588-001 144588-001 144588-001 144588-001

Bobbin case
assembly
Bobbin case Bobbin case Bobbin case Bobbin case Bobbin case Bobbin case Bobbin case
assembly LA assembly LA assembly LA assembly LB assembly LA assembly LA assembly LA
Sd15902-401 S15902-401 S15902-401 S15903-401 S15902-401 S15902-401 S15902-401

Needle bar
thread guide
Needle bar Needle bar Needle bar Needle bar Needle bar Needle bar Needle bar
thread guide A thread guide A thread guide A thread guide B thread guide A thread guide A thread guide A
S02438-001 S02438-001 S02438-001 S02439-001 S02438-001 S02438-001 S02438-001

Needle

DP × 17 #21 DP × 17 #21 DP × 5 #16 DP × 17 #25 DP × 17 #19 DP × 17 #21 DP × 5 #16

145646-021 145646-021 107415-016 145646-025 145646-019 145646-021 107415-016

Feed plate Feed plate Feed plate

Feed plate Feed plate Feed plate Feed plate Feed plate 326B 326A
S44389-001 S44388-001
311B 311B 311A 311B 326B

( )( )
Feed plate Feed Plate
S42797-001 S42797-001 S42777-001 S42797-001 S44389-001
326LB 326LA
S51038-001 S51037-001
Work clamp

Work clamp A Work clamp A Work clamp A Work clamp B Work clamp A Work clamp A Work clamp A
S42843-001 S42843-001 S42843-001 S42844-001 S42843-001 S42843-001 S42843-001

Spring

Spring Spring Spring Spring Spring Spring Spring

107606-001 107606-001 104525-001 107606-001 107606-001 107606-001 104525-001

112 BAS-311E.311EL.326E.326EL
 Chapter 9. Gauge parts list

Chapter 9. Gauge parts list

■ Presser foot
Ref.No.A * Ref.No.B Ref.No.C Ref.No.D

5 5 5 ø6
ø4 ø5.5 ø3
ø10

ø2.5 ø4 ø2 ø3

Ref.No.E Ref.No.F Ref.No.G Ref.No.J

5
ø2.5 10
2.5 ø3 ø4

ø1.6 ø2 ø2 ø2.5

Ref.No.XY

5
ø4

φ2.5

REF.NO. CODE QTY NAME OF FPARTS REF.NO. CODE QTY NAME OF FPARTS

A S42843001 1 PRESSER FOOT, A E S42847001 1 PRESSER FOOT, E

F 157237001 1 PRESSER FOOT, F
"OPTION PARTS" G 158592001 1 PRESSER FOOT, G
B S42844001 1 PRESSER FOOT, B J S42848001 1 PRESSER FOOT, J
C S42845001 1 PRESSER FOOT, C <For Horizontal wiper>
D S42846001 1 PRESSER FOOT, D XY S42849001 1 PRESSER FOOT, XY
The * symbol is for standard parts.

■ Needle hole plate

Ref.No.A Ref.No.D Ref.No.E * Ref.No.ED Ref.No.F     *

ø4 ø4 ø10
ø1.6 ø2.2
ø2.6 ø2.6 ø3.4

3 2.8 2.8 3
3

Ref.No.FD Ref.No.H Ref.No.L Ref.No.M  *

ø10 ø2.6 ø4.7

ø6.5
ø2.2
ø3.3 ø4
2
3 2.8 2.8 2.8

REF.NO. CODE QTY NAME OF FPARTS REF.NO. CODE QTY NAME OF FPARTS
<For 311E & 311EL, 326EL "heavy materials"> "OPTION PARTS"
E S10212101 1 NEEDLE HOLE PLATE, E ø2.6 A S10211001 1 NEEDLE HOLE PLATE, A
<For 311E, 326EL "medium materials"> D S29997001 1 NEEDLE HOLE PLATE, D
F S10213001 1 NEEDLE HOLE PLATE, F ø2.2 ED S30925001 1 NEEDLE HOLE PLATE, ED
<For 311E "extra heavy materials"> FD S30926001 1 NEEDLE HOLE PLATE, FD
M S34348001 1 NEEDLE HOLE PLATE, M ø4.0 H S30450001 1 NEEDLE HOLE PLATE, H
L S25127001 1 NEEDLE HOLE PLATE, L

BAS-311E.311EL.326E.326EL 113
Chapter 9. Gauge parts list

■ Work clamp, Feed plate (BAS-311E)

213 44 75- 1
13.5 27

140- 1 73
192
1
49 0.5
75- 2
9
213 44 7 8
13.5 27
8 7
66 10 32

63 6
140- 2
192 73.5
1.5
63 7
49 0.6 75.5 8
66

OPTION PARTS 75-5

155
75-6 27 44
30
35
83
40
27

156
157
200
75-4 32 86.5
75-7
50 27 50 158
27 27 50 178
178 178 15
15 15
49 49 49

1 192 1.5 192 151-3

192 151-1 151-2 146.5
146.5 0.5 0.6 115
115 10 50
50
24
18 31
4 161 12 162

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS
6 S42772001 1 WORK CLAMP, R311 75-7 062670512 4 SCREW, PAN SM3.57-40X5
7 S42773001 1 WORK CLAMP, L311
8 025680232 2 WASHER, PLAIN M4.37 <For One-touch work clamp>
9 153403002 2 BOLT, SM4.37X7 155 S14841001 1 OT FEED PLATE BRACKET ASSY
10 S10065001 2 POSITIONING PLATE 156 S13006001 1 CASSETTE HOLDER PLATE
73 S42801001 2 WORK CLAMP, SE 157 S13007001 2 PIN
75-1 S42787001 2 WORK CLAMP GUIDE BRACKET, A 158 021660306 2 NUT, 3 SM3.18-40
75-2 S42884001 1 WORK CLAMP GUIDE BRACKET, B
<OT-Feed Plate blank>
<For medium materials> 151-1 S43700001 1 OT-FEED PLATE BLANK, A t=1.2
140-1 S42777001 1 FEED PLATE, 311A t=1.2 151-2 S43821001 1 OT-FEED PLATE BLANK, B t=1.2
<For heavy & extra heavy materials> 151-3 S43822001 1 OT-FEED PLATE BLANK, C t=1.2
140-2 S42797001 1 FEED PLATE, 311B t=1.2
<For Denim>
"OPTION PARTS" 161 S14253001 1 OT FEED PLATE BLANK, DE t=1.2
75-3 S42798001 1 WORK CLAMP GUIDE BRACKET <For general>
75-4 S42799001 2 WORK CLAMP AJUSTING PLATE OT FEED PLATE t=1.2
75-5 S42800001 2 ADJUSTING PLATE 162 S14252001 1
75-6 S42802001 2 WORK CLAMP, SE-OP

114 BAS-311E.311EL.326E.326EL
 Chapter 9. Gauge parts list

■ Feed plate blank and Work clamp blank (BAS-311E)

202

8 7
66
63
138 64 26 203
152

213 27 213 27 44
44 13.5
13.5
49 49

150-1 150-2
192 192

1 1.5

0.5 0.6

213 27 44
13.5 152
49 154

150-3 27 44
192 66.2 152.2
20 63

84 153-1 84 153-2 84 153-3

41 41 41

85 85 1.5 85 1
1
0.6 0.6 0.6

84 84 153-5 84 153-6
41 153-4 41 41

85 85 85 1.5
1.5 1
0.6 0.6 0.6

84 153-7
41
87

85 1.5
89
0.6 172

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

<For gauge parts> 153-3 S43826001 1 WORK CLAMP BLANK, A-4.0 t=4.0
138 S42888001 1 H-POSITION STANDARD PLATE ASSY* 153-4 S43827001 1 WORK CLAMP BLANK, B-4.0 t=4.0
153-5 S43828001 1 WORK CLAMP BLANK, A-5.0 t=5.0
<For feed plate attachment> 153-6 S43829001 1 WORK CLAMP BLANK, B-5.0 t=5.0
150-1 S43697001 1 FEED PLATE BLANK, A311 t=1.2 153-7 S43830001 1 WORK CLAMP BLANK, 6.0 t=6.0
150-2 S43698001 1 FEED PLATE BLANK, B311 t=1.2
150-3 S43699001 1 FEED PLATE BLANK, C311 t=1.2 <One-touch work clamp plate assy>
152 S43823001 1 FEED PLATE INNER PLATE 89 S43691001 1 WORK CLAMP PLATE ASSY, OT311
154 S12586001 1 FEED PLATE SETTING BRACKET 89 S43691002 1 WORK CLAMP PLATE ASSY, OT311
89 S43691003 1 WORK CLAMP PLATE ASSY, OT311
<The blank for work clamp>
153-1 S43824001 1 WORK CLAMP BLANK, A-3.2 t=3.2 202 S43986001 1 WORK CLAMP, UN
153-2 S43825001 1 WORK CLAMP BLANK, B-3.2 t=3.2 203 S43987001 1 WORK CLAMP, 311 UN
✩Parts which have an asterisk (*) parts which have been assembled and adjusted to high precisions. These parts should never be
disassembled.

BAS-311E.311EL.326E.326EL 115
Chapter 9. Gauge parts list

■ Work clamp and Feed plate (BAS-311EL)

75-1

9
8 12 7 8
66
10
118 73
75-2
130.5
6
98
12
110.5 8
66

213 32
44
49 13.5 27

266 140-2
1.5
0.6

OPTION PARTS

75-5
75-6

75-3

75-4
75-7 32

213
44
49 13.5 27

1 266 140-1
0.5

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

6 S44614001 1 WORK CLAMP, R311L "OPTION PARTS"

7 S44613001 1 WORK CLAMP, L311L 75-3 S42798001 1 WORK CLAMP GUIDE BRACKET
8 025680232 2 WASHER, PLAIN M 4.37 75-4 S42799001 2 WORK CLAMP AJUSTING PLATE
9 153403002 2 BOLT, SM4.37X7 75-5 S42800001 2 ADJUSTING PLATE
10 S10065001 2 POSITIONING PLATE 75-6 S42802001 2 WORK CLAMP, SE-OP
73 S42801001 2 WORK CLAMP, SE 75-7 062670512 4 SCREW, PAN SM3.57-40X5
75-1 S42787001 2 WORK CLAMP GUIDE BRACKET, A <For medium materials>
75-2 S42884001 1 WORK CLAMP GUIDE BRACKET, B 140-1 S44621001 1 FEED PLATE, A 311L t=1.2
<For heavy materials>
140-2 S44622001 1 FEED PLATE, B 311L t=1.2

116 BAS-311E.311EL.326E.326EL
 Chapter 9. Gauge parts list

■ Feed plate blank and Work clamp blank (BAS-311EL)

138

213
27 44
49 13.5

150-1
266 213
27 44
1 13.5
49
0.5
150-2
266
1.5 213
27 44
13.5
0.6 49

266

178
27 150-3
49 50
15
178
49 27 50
15
266 178
1 49 27 50
15
0.5 266
151-1
89 266
91 151-3

1.5 151-2
262 0.6

84 41 66.2
152
153-1

153-2
84 41 140 242
153-3
1
0.6 120 41
140 153-4
1.5
84
0.6
1
120 41
1.5 0.6
84
0.6

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

"OPTION PARTS" <The blank for work clamp>

<One-touch work clamp plate assy> <Thick = 3.2mm>
89 S45591001 1 WORK CLAMP PLATE ASSY, OT311L t-0.5 153-1 S45604001 1 WORK CLAMP BLANK, A-3.2L311L
89 S45593001 1 WORK CLAMP PLATE ASSY, OT311L t=1.0 153-2 S45605001 1 WORK CLAMP BLANK, A-3.2R311L
89 S45595001 1 WORK CLAMP PLATE ASSY, OT311L t=2.0 153-3 S45606001 1 WORK CLAMP BLANK, B-3.2L311L
153-4 S45607001 1 WORK CLAMP BLANK, B-3.2R311L
<For gauge parts> <Thick = 4.0mm
138 S44608001 1 H-POSITION STANDARD PLATE ASSY* 153-1 S45608001 1 WORK CLAMP BLANK, A-4.0L311L
153-2 S45609001 1 WORK CLAMP BLANK, A-4.0R311L
<For feed plate attachment> 153-3 S45610001 1 WORK CLAMP BLANK, B-4.0L311L
150-1 S45597001 1 FEED PLATE BLANK, A311L t=1.2 153-4 S45611001 1 WORK CLAMP BLANK, B-4.0R311L
150-2 S45598001 1 FEED PLATE BLANK, B311L t=1.2 <Thick = 5.0mm>
150-3 S45599001 1 FEED PLATE BLANK, C311L t=1.2 153-1 S45612001 1 WORK CLAMP BLANK, A-5.0L311L
152 S45603001 1 FEED PLATE INNER PLATE 153-2 S45613001 1 WORK CLAMP BLANK, A-5.0R311L
153-3 S45614001 1 WORK CLAMP BLANK, B-5.0L311L
<For one-touch work clamp> 153-4 S45615001 1 WORK CLAMP BLANK, B-5.0R311L
151-1 S45600001 1 OT-FEED PLATE BLANK, A311L t=1.2 <Thick = 6.0mm>
151-2 S45601001 1 OT-FEED PLATE BLANK, B311L t=1.2 153-3 S45616001 1 WORK CLAMP BLANK, 6.0L311L
151-3 S45602001 1 OT-FEED PLATE BLANK, C311L t=1.2 153-4 S45617001 1 WORK CLAMP BLANK, 6.0R311L
✩Parts which have an asterisk (*) parts which have been assembled and adjusted to high precisions. These parts should never be
disassembled.

BAS-311E.311EL.326E.326EL 117
Chapter 9. Gauge parts list

■ Feed mechanism (BAS-326E)

BAS-326E

91
75-1
75-2
75-1
140
77
73

78
78

76

OPTION PARTS 75-5

75-3
75-5
75-6
5
114

106
242 75-7
75-4

BAS-326EL
140-1
164 80

1 0.5

140-2
164 80
121
242

121
242 1.5 0.6

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

73 S44447001 2 WORK CLAMP, SE <For Thick materials>

75-1 S42787001 2 WORK CLAMP GUIDE BRACKET, A 140 S44389001 1 FEED PLATE, B326 t=1.2
75-2 S42884001 1 WORK CLAMP GUIDE BRACKET, B 140-2 S51038001 FEED PLATE, B326L t=1.2
76 062670712 2 SCREW, PAN SM3.57-40X7
77 062671212 4 SCREW, PAN SM3.57-40X12 "OPTION PARTS"
78 107038003 4 SCREW, FLAT SM3.57 5 S44448001 1 WORK CLAMP, UN326
91 S44455001 1 WORK CLAMP GUIDE PLATE 5 S51042001 1 WORK CLAMP, UN326L
75-3 S42798001 1 WORK CLAMP GUIDE BRACKET
<For Medium-thick materials> 75-4 S44451001 2 PRESSER ADJUSTING PLATE
140 S44388001 1 FEED PLATE, A326 t=1.2 75-5 S42800001 2 ADJUSTING PLATE
140-1 S51037001 FEED PLATE, A326L t=1.2 75-6 S44453001 2 PRESSER FOOT, SE-OP

118 BAS-311E.311EL.326E.326EL
 Chapter 9. Gauge parts list

■ Feed mechanism (Option parts) BAS-326E

155

138

248 164
80
248 164 80

131
131 1 1.5
262
262 0.5

150-1 150-2 0.6

209.5 45
248 129
164 80

131
131 1
262
262 0.5

150-3 151-1

45
209.5
129
209.5 45
129

131
1.5 262
131
262 0.6
151-3
151-2 1

131 61 1.5
0.5
106.2
152 124 0.6
61
125
124
222.2 125 131
153-1
153-2

131 61 131 61
124
124

1.5
1 252
252 0.6
0.5
153-3 153-4

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

<FOR GAUGE PARTS> <The blank for work clamp>

138 S44366001 1 H/POSITION STANDARD PLATE ASSY* 153-1 S44391001 1 WORK CLAMP BLANK, SE A-3.2 t=3.2
153-1 S44393001 1 WORK CLAMP BLANK, SE A-4.0 t=4.0
<Attachment for one-touch feed plate> 153-1 S44395001 1 WORK CLAMP BLANK, SE A-5.0 t=5.0
155 S14841001 1 OT FEED PLATE BRACKET ASSY 153-2 S44392001 1 WORK CLAMP BLANK, SE B-3.2 t=3.2
153-2 S44394001 1 WORK CLAMP BLANK, SE B-4.0 t=4.0
<Attachment for feed plate> 153-2 S44396001 1 WORK CLAMP BLANK, SE B-5.0 t=5.0
150-1 S44405001 1 FEED PLATE BLANK, 326A t=1.2 153-2 S44397001 1 WORK CLAMP BLANK, SE B-6.0 t=6.0
150-2 S44406001 1 FEED PLATE BLANK, 326B t=1.2 153-3 S44398001 1 WORK CLAMP BLANK, UN A-3.2 t=3.2
150-3 S44407001 1 FEED PLATE BLANK, 326C t=1.2 153-3 S44400001 1 WORK CLAMP BLANK, UN A-4.0 t=4.0
152 S44390000 1 FEED PLATE INNER PLATE 153-3 S44402001 1 WORK CLAMP BLANK, UN A-5.0 t=5.0
153-4 S44399001 1 WORK CLAMP BLANK, UN B-3.2 t=3.2
<The blank for one-touch feed plate> 153-4 S44401001 1 WORK CLAMP BLANK, UN B-4.0 t=4.0
151-1 S44408001 1 OT FEED PLATE BLANK, A t=1.2 153-4 S44403001 1 WORK CLAMP BLANK, UN B-5.0 t=5.0
151-2 S44409001 1 OT FEED PLATE BLANK, B t=1.2 153-4 S44404001 1 WORK CLAMP BLANK, UN B-6.0 t=6.0
151-3 S44410001 1 OT FEED PLATE BLANK, C t=1.2
✩Parts which have an asterisk (*) parts which have been assembled and adjusted to high precisions. These parts should never be
disassembled.

BAS-311E.311EL.326E.326EL 119
Chapter 9. Gauge parts list

■ Feed mechanism (BAS-326E, 326EL)

(326EL) (326EL) 75-2

10 73
9 10
8 9
12 8
106 108 7
114 98
120.5 108
110.5 98
120.5
12 110.5 7 75-1
106 114
7 37
7
6
6

114 5

222

164
80

140-1
106
140-2
222 164 80
1
0.5
106

222 1.5

0.6
154-1 154-2
63 75-3
75-4
20
75-6

39

75-5
89
131 37
5

252

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

6 S44431001 1 WORK CLAMP, R326 "OPTION PARTS"

6 S51030001 1 WORK CLAMP, R326EL 5 S44448001 1 WORK CLAMP, UN326
7 S44432001 1 WORK CLAMP, L326 75-3 S42798001 1 WORK CLAMP GUIDE BRACKET
7 S51031001 1 WORK CLAMP, L326L 75-4 S44451001 2 PRESSER ADJUSTING PLATE
8 025680232 2 WASHER, PLAIN M4.37 75-5 S42800001 2 ADJUSTING PLATE
9 153403002 2 BOLT, SM4.37X7 75-6 S44453001 2 PRESSER FOOT, SE-OP
10 S10065001 2 POSITIONING PLATE
73 S44447001 2 WORK CLAMP,SE "For BAS-326A & BAS-326LA"
75-1 S42787001 2 WORK CLAMP GUIDE BRACKET, A <Attachment for work clamp & feed plate>
75-2 S42884001 1 WORK CLAMP GUIDE BRACKET, B 154-1 S12586001 1 FEED PLATE SETTING BRACKET
154-2 S44413001 2 WORK CLAMP, SE
<For medium-thick materials>
140-1 S44388001 1 FEED PLATE, A326 t=1.2 <For one-touch work clamp plate assy>
<For thick materials> 89 S44374001 1 WORK CLAMP PLATE ASSY, 326-OT t=0.5
140-2 S44389001 1 FEED PLATE, B326 t=1.2 89 S44376001 1 WORK CLAMP PLATE ASSY, 326-OT t=1.0
89 S44378001 1 WORK CLAMP PLATE ASSY, 326-OT t=2.0

120 BAS-311E.311EL.326E.326EL
 Chapter 9. Gauge parts list

■ Feed mechanism (Option parts)

138 155

248 248
164 164

136 136
272 1 0.5 272
1.5 0.6
150-1 150-2

248
164

106.2

136
272 242.2

150-3 152

136 136
124 61 124 61

136 0.1 0.6 136 1.5 0.6

153-1 153-2

136
124 61 136
124 61

272 0.6
0.1 272
1.5 0.6
153-3
153-4

REF.NO. CODE Q'TY NAME OF PARTS REF.NO. CODE Q'TY NAME OF PARTS

<Gauge parts> 153-2 S51054001 1 WORK CLAMP BLANK, SE B-4.0-L t=4.0

138 S51043001 1 H-POSITION STANDARD PLATE ASSY 153-2 S51056001 1 WORK CLAMP BLANK, SE B-5.0-L t=5.0
153-2 S51058001 1 WORK CLAMP BLANK, SE B-6.0-L t=6.0
<Attachment for feed plate> 153-3 S51059001 1 WORK CLAMP BLANK, A-3.2 UN-L t=3.2
150-1 S51045001 1 FEED PLATE BLANK, A 326L t=1.2 153-3 S51061001 1 WORK CLAMP BLANK, A-4.0 UN-L t=4.0
150-2 S51046001 1 FEED PLATE BLANK, B 326L t=1.2 153-3 S51063001 1 WORK CLAMP BLANK, A-5.0 UN-L t=5.0
150-3 S51047001 1 FEED PLATE BLANK, C 326L t=1.2 153-3 S51065001 1 WORK CLAMP BLANK, A-6.0 UN-L t=6.0
152 S48555000 1 INNER PLATE, FED PLATE 153-4 S51060001 1 WORK CLAMP BLANK, B-3.2 UN-L t=3.2
153-4 S51062001 1 WORK CLAMP BLANK, B-4.0 UN-L t=4.0
<For work clamp blank> 153-4 S51064001 1 WORK CLAMP BLANK, B-5.0 UN-L t=5.0
153-1 S51051001 1 WORK CLAMP BLANK, SE A-3.2-L t=3.2 153-4 S51066001 1 WORK CLAMP BLANK, B-6.0 UN-L t=6.0
153-1 S51053001 1 WORK CLAMP BLANK, SE A-4.0-L t=4.0
153-1 S51055001 1 WORK CLAMP BLANK, SE A-5.0-L t=5.0 <Attachment for one-touch feed plate>
153-1 S51057001 1 WORK CLAMP BLANK, SE A-6.0-L t=6.0 155 S14841001 1 OT-FEED PLATE BRACKET ASSY
153-2 S51052001 1 WORK CLAMP BLANK, SE B-3.2-L t=3.2
✩Parts which have an asterisk (*) parts which have been assembled and adjusted to high precisions. These parts should never be
disassembled.

BAS-311E.311EL.326E.326EL 121
Chapter 9. Gauge parts list

■ Feed mechanism (Option parts) BAS-326E,326EL

209 129 151-1 209

129 151-2

136 136

272 272

1 0.5 1.5 0.6

154-1 154-3
209 129 151-3 8.5

20 63 20 63

136
154-2 154-4
272

155

30 35
39 39

156

200 157
246
80
83
158
159

123
138
81
282
155
163

160

282

139
282
165-1
147
189-1 165-2
161

111

272

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

<The blank for one-touch feed plate> 189-1 S51067001 1 OT-WORK CLAMP PLATE ASSY, 326L t=0.5
151-1 S51048001 1 OT-FEED PLATE BLANK, A 326L t=1.2 189-1 S51069001 1 OT-WORK CLAMP PLATE ASSY, 326L t=1.0
151-2 S51049001 1 OT-FEED PLATE BLANK, B 326L t=1.2 189-1 S51071001 OT-WORK CLAMP PLATE ASSY, 326L t=2.0
151-3 S51050001 1 OT-FEED PLATE BLANK, C 326L t=1.2
1 <Attachment for cassette clamp>
<Attachment for one-touch feed plate> 156 S44411001 2 CASSETTE HOLDER PLATE
155 S14841001 1 OT-FEED PLATE BRACKET ASSY 157 S13007001 2 PIN, CASSETTE HOLDER
158 021660306 1 NUT, 3 SM3.18-40
"For BAS-326A & BAS-326LA" 159 S14392201 1 CASSETTE PLATE, D-A180
<Attachment for work clamp & feed plate> 160 S14388101 1 CASSETTE PLATE, D-B180
154-1 S12586001 1 FEED PLATE SETTING BRACKET 161 S14386000 1 CASSETTE LOWER PLATE, A-180 t=1
154-2 S44413001 2 WORK CLAMP, SE-226 161 S14387000 1 CASSETTE LOWER PLATE, B-180 t=2
154-3 S44463001 1 FEED PLATE SETTING BRACKET, SP 163 S14389000 1 CASSETTE PLATE, U-A180 t=1
154-4 S44464001 2 WORK CLAMP, SE-226SP 163 S14390000 1 CASSETTE PLATE, U-B180 t=2
165-1 152632001 1 HINGE ASSY, R
1 <For cassette clamp assy> 165-2 152633001 1 HINGE ASSY, L

122 BAS-311E.311EL.326E.326EL
 Chapter 10. Option parts

Chapter 10. Option parts

■ Programmer assy Used to create sewing patterns for the BAS-300E series.
It can also be used to display error messages.

■ Inner clamp device Used for efficient sewing around labels, emblems and tape; operates by air together with
the outer presser, so material slippages wil not occur.

■ One-touch clamping Allows the clamp to be replaced quickly and easily, without the need for extra tools. The
device positioning adjustment that has been previously required for other clamps is no longer
necessary.

■ Milling device This device can be used to cut a variety of objects such as grooves, holes, and outline
shapes in plastic or aluminum sheets.

■ WP stitch device Increases the stitch creation range for perfect stitches.

■ Auto bobbin changer When the amount of bobbin thread remaining becomes low, this device automatically re-
places the bobbin. This reduces the need for tasks such as checking the amount of bobbin
thread remaining and replacing bobbins, so that productivity can be increased.

■ Snap fastener and hook This attachment is for holding snap fasteners and hooks.
attachment device

■ Needle thread presser This allows the upper thread to be securely placed under the material for the first stitch at
device the sewing start.

■ Thread breakage detec- Available as rotary type or fiber type, stops sewing when a thread breakage is detected and
tor device warms the operator.

■ Needle coder device This is a pneumatic-type needle cooler which prevents the thread breaking due to heat. It is
particularly useful when sewing thicker materials at high sewing speeds.

■ OT Presser Use according to particular sewing needs in order to provide an even clamping force.

■ Soft presser At the first stage, the work clamp applies only a spring force so that the material can be
positioned. Then at the second stage, air pressure provides a full clamping force.

■ Cassette presser This allows the operator to hold two clamps so that the preparation for the next operation
can be carried out while sewing is in progress.
Overlapping operations are thus possible, which can greatly boost productivity.

■ Play prevention work This work clamp prevents any play from occurring in the clamp.
clamp

■ Thread wiper the side Wipes the upper thread away to the side when an inner clamping device is being used.

The thread wiper is driven by a pneumatic cylinder.

■ Air wiper device

■ 2-step thread tension Allows the upper thread tension to be switched between two settings at any position de-
device sired by using the programmer.

* Refer to the separate Parts Book for details.

BAS-311E.311EL.326E.326EL 123
Chapter 10. Option parts

■ Programmer

Option parts
1-1

1-9
1-15

2-20
1-13
1-5
1-7 1-16

1-14
1-4
1-8

1-3
1-10

1-2

1-6

1-18 1-12

1-13 1-19 1-17

1-11

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

1 S43249001 1 PROGRAMMER ASSY 1-12 S43272000 1 MAGNET,B

1-1 S43250000 1 TOP COVER,PROGRAMMER 1-13 037300615 6 TAPPING SCREW,PAN V M3X6
1-2 S43251000 1 LOWER COVER,PROGRAMMER 1-14 S43267000 1 PROGRAMMER HARNESS
1-3 S43252000 1 SPACER,KEYBOARD 1-15 S43268000 1 INVERTER HARNESS
1-4 S43253000 1 RUBBER SHEET,KEYBOARD 1-16 S43270000 1 CORD BUSH,KR51
1-5 S43254000 1 KEYBOARD SHEET 1-17 S43981000 2 LOWER COVER,PROGRAMMER
1-6 037301015 4 TAPPING SCREW,PAN V M3X10 1-18 S43259001 1 PROGRAMMER PCB ASSY
1-7 S43255000 1 LCD COVER 1-19 S43269000 1 PROM PROGRAMMER ASSY
1-8 S43256000 1 LCD
1-9 S43257000 1 INVERTER,LCD "OPTION PARTS"
1-10 037200615 4 TAPPING SCREW,PAN V M2X6 1-20 S40621000 1 EMI CORE,ESD-SR-15
1-11 S43271000 1 MAGNET,A 1-21 149809000 1 BEAD BAND,L

124 BAS-311E.311EL.326E.326EL
 Chapter 10. Option parts

■ Inner clamping device (Option device)

1-6
1-13 1-4 1-8 1-5 1-2 1-1-3
1-7

1-1-19 1-1-18 1-11-8

1-1-4

1-1-25 1-1-5
1-1-11
1-1-6 1-11-1

1-1-24 1-11-6
1-1-23 1-1-13
1-1-8 1-1-12 1-11-5
1-1-21 1-3
1-1-14 1-11-4
1-1-22 1-1-20 1-1-17
1-1-9 1-1-7 1-1-1 1-1-10 1-1-2
1-1-16 1-11-3 1-11-2
1-10 1-9
1-1-15 1-11-7-2
1-14

1-11-7-1

1-11-11 1-11-10

1-11-9
For Supply parts

5
1-12
For Supply parts
4
6

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

1 S44793009 1 INNER CLAMPING DEVICE SET 1-3 117291002 2 SCREW,FLAT SM3.18

1-1 S12633209 1 WORK CLAMP CRANK ASSY,LA 1-4 154252001 1 POSITIONING PLATE,L
1-1-1 S12634009 1 WORK CLAMP CRANK HOLDER,A 1-5 154253001 1 POSITIONING PLATE,R
1-1-2 S12635009 1 WORK CLAMP CRANK HOLDER,B 1-6 062670512 4 SCREW,PAN SM3.57-40X5
1-1-3 S12636001 1 WORK CLAMP CRANK HOLDER,C 1-7 025350332 4 WASHER,PLAIN L3.5
1-1-4 S12641009 1 WASHER 1-8 028350242 4 WASHER,SPRING 2-3.5
1-1-5 018681232 2 BOLT,SOCKET SM4.37-40X12 1-9 154256101 1 WORK CLAMP BLANK,A
1-1-6 S12638009 1 REVERSE CYLINDER BRACKET 1-10 S12645001 1 FEED PLATE BLANK,312-1
1-1-7 018301236 2 BOLT,SOCKET M3X12 1-11 S44745009 1 INNER CLAMP VALVE ASSY,3
1-1-8 018301036 2 BOLT,SOCKET M3X10 1-11-1 S31570209 1 VALVE SETTING PLATE,4-HH
1-1-9 S05665001 1 WORK CLAMP CRANK,LA 1-11-2 S44748001 1 AIR MANIFOLD,3
1-1-10 154235001 1 REVERSE GEAR 1-11-3 062302505 2 SCREW,PAN M3X25
1-1-11 154236001 1 REVERSE RACK 1-11-4 028030242 2 WASHER,SPRING 2-3
1-1-12 145087001 1 WASHER 1-11-5 025030232 2 WASHER,PLAIN M3
1-1-13 149831101 1 SET SCREW,SM3.18 1-11-6 S43683001 1 SOLENOID VALVE
1-1-14 154237001 1 WORK CLAMP PLATE HOLDER,L 1-11-7 S43696000 1 VALVE HARNESS,X1
1-1-15 025350132 1 WASHER,PLAIN S3.5 1-11-7-1 S44746000 1 VALVE HARNESS
1-1-16 100242003 1 SCREW,SM3.57 1-11-7-2 S44750000 1 VALVE HARNESS,24V
1-1-17 S12637009 1 REVERSE ROD 1-11-8 S18415101 2 HALF UNION,Q4M5
1-1-18 S12639001 1 REVERSE CYLINDER 1-11-9 S12647001 1 AIR REGULATOR
1-1-19 S12642009 2 BOLT,SOCKET M3X35 1-11-10 S29704000 2 ELBOW,4-1/8
1-1-20 S12640009 1 JOINT 1-11-11 062404005 2 SCREW,PAN M4X40
1-1-21 018300836 1 BOLT,SOCKET M3X8 1-12 340400001 2 BEAD BAND
1-1-22 018300836 1 BOLT,SOCKET M3X8 1-13 S03803000 2 AIR TUBE
1-1-23 017501216 1 BOLT,M5X12 1-14 S28741000 1 AIR TUBE,L=300
1-1-24 021500216 1 NUT,2 M5 4 S14598001 1 OT FEED PLATE BLANK, 312
1-1-25 S18415101 2 HALF UNION,Q4M5 5 S12644001 1 EXTERNAL WORK CLAMP FOOT 312-2
1-2 S12643001 1 OUTER WORK CLAMP,312-1 6 S10542001 1 INNER CLAMP (LL)

BAS-311E.311EL.326E.326EL 125
Chapter 10. Option parts

■Inner clamping device (Option device) BAS-326EL

1-12
1-1-25 1-2 1-1-4 1-1-3

1-13
1-4 1-6 1-5
1-1-19 1-1-18 1-8
1-7

1-1-6
1-1-26
1-1-5

1-1-24
1-1-23 1-1-7

1-1-22 1-1-20 1-1-21 1-1-13

1-1-12
1-1-17
1-1-2
1-1-14 1-3 1-1-9

1-10 1-9 1-1-16

1-1-10 1-1-11 1-11
1-1-8 1-1-1
1
1-11-8
1-1-15
1-11-2
1-11-1

1-14
1-11-5
1-11-4
1-11-9-1 1-11-3 1-11-6

1-11-7-2
1-11-7
1-11-9
1-11-10 1-11-9-2
1-11-7-1

13
For Supplry parts

14
11

12

15

REF.NO. CODE Q'TY NAME OF PARTS REF.NO. CODE Q'TY NAME OF PARTS

1 S51073009 1 INNER CLAMPING DEVICE SET, 326E 1-5 154253001 1 POSITIONING PLATE, R
1-1 S44420009 1 WORK CLAMP CRANK ASSY, LA 1-6 062670512 4 SCREW, PAN SM3.57-40X5
1-1-1 012634009 1 WORK CLAMP CRANK HOLDER, A 1-7 025350332 4 WASHER, PLAIN L3.5
1-1-2 S12635009 1 WORK CLAMP CRANK HOLDER, B 1-8 028350242 4 WASHER, SPRING 2-3.5
1-1-3 S44421001 1 WORK CLAMP CRANK HOLDER, C 1-9 154256101 1 WORK CLAMP PLATE BLANK, A
1-1-4 S44422001 1 SPACER, CRANK HOLDER 1-10 S51075001 1 FEED PLATE BLANK, H 326L t=1.2
1-1-5 150382001 2 BOLT, SOCKET SM4.37X18 1-11 S44745009 1 INNER CLAMP VALVE ASSY, 3
1-1-6 S12638009 1 REVERSE CYLINDER BRACKET 1-11-1 S31570209 1 VALVE SETTING PLATE, 4-5H
1-1-7 018301236 2 BOLT, SOCKET M3X12 1-11-2 S44748001 1 AIR MANIFOLD, 3
1-1-8 018301036 2 BOLT, SOCKET M3X10 1-11-3 062302506 2 SCREW, PAN M3X25
1-1-9 S05665001 1 WORK CLAMP CRANK, LA 1-11-4 028030242 2 WASHER, SPRING 2-3
1-1-10 154235001 1 REVERSE GEAR 1-11-5 025030232 2 WASHER, PLAIN M3
1-1-11 154236001 1 REVERSE RACK 1-11-6 S43683001 1 SOLENOID VALVE
1-1-12 145087001 1 WASHER 1-11-7 S43696000 1 VALVE HARNESS, X1
1-1-13 149831101 1 SET SCREW, SM3.18 1-11-7-1 S44746000 1 VALVE HARNESS
1-1-14 154237001 1 WORK CLAMP PLATE HOLDER, L 1-11-7-2 S44750000 1 VALVE HARNESS, 24V
1-1-15 025350132 1 WASHER, PLAIN S3.5 1-11-8 S18415101 2 HALF UNION, Q4M5
1-1-16 100242003 1 SCREW, SM3.57 1-11-9 S45252000 1 REGULATOR ASSY
1-1-17 S12637009 1 REVERSE ROD 1-11-9-1 S45253000 1 REGULATOR
1-1-18 S12639001 1 REVERSE CYLINDER 1-11-9-2 A45254000 2 JOINT, 3109-4-10
1-1-19 S12642009 2 BOLT, SOCKET M3X35 1-11-10 062404005 2 SCREW, PAN M4X40
1-1-20 S12640009 1 JOINT 1-12 340400001 2 BEAD BAND
1-1-21 018300836 1 BOLT, SOCKET M3X8 1-13 S03803000 2 AIR TUBE, 4L=1300
1-1-22 018300836 1 BOLT, SOCKET M3X8 1-14 S28741000 1 AIR TUBE, 4L=300
1-1-23 017501216 1 BOLT, M5X12
1-1-24 021500216 1 NUT, 2 M5 "For Supply parts"
1-1-25 S18415101 2 HALF UNION, Q4M5 11 S44426001 1 OUTER WORK CLAMP, 326E-2
1-1-26 S44424001 1 SPACER, CRANK HOLDER 12 S51076001 1 OUTER WORK CLAMP, 326L-3
1-2 S44425001 1 OUTER WORK CLAMP, 326E-1 13 S10542001 1 INNER CLAMP, LL
1-3 117291002 2 SCREW, FLAT SM3.18 14 S51077001 1 WORK CLAMP BLANK, A 326L
1-4 154252001 1 POSITIONING PLATE, L 15 S51078001 1 OT-FEED PLATE BLANK, H 326L t=1.2

126 BAS-311E.311EL.326E.326EL
 Chapter 10. Option parts

■ One-touch work clamp

3-1 3-2

3-5

3-5

3-3 3-4

For Supply parts

4-2 5-2

4 5

4-1 5-1

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

<For attaching the snap & hook> 3-5 018680822 8 BOLT,SOCKET SM4.37X8
1 S24612001 1 ONE-TOUCH HOLDER ASSY,UN
<For supply parts"
<For change the feed plate setting position> 4 S20822101 1 WORK CLAMP HOLDER SET,L
2 S14841001 1 OT FEED PLATE BRACKET ASSY 4-1 S20289101 1 WORK CLAMP HOLDER ASSY,L
4-2 018680822 2 BOLT,SOCKET SM4.37X8
<For One-touch work clamp set> 5 S20823101 1 WORK CLAMP HOLDER SET,R
3 S44794001 1 ONE-TOUCH WORK CLAMP SET 5-1 S20293101 1 WORK CLAMP HOLDER ASSY,R
3-1 S20280101 1 ONE-TOUCH HOLDER ASSY,L 5-2 018680822 2 BOLT,SOCKET SM4.37X8
3-2 S20286101 1 ONE-TOUCH HOLDER ASSY,R 3-1 S20280101 1 ONE-TOUCH HOLDER ASSY,L
3-3 S20289101 2 WORK CLAMP HOLDER ASSY,L 3-2 S20286101 1 ONE-TOUCH HOLDER ASSY,R
3-4 S20293101 2 WORK CLAMP HOLDER ASSY,R
✩Parts which have an asterisk (*) parts which have been assembled and adjusted to high precisions. These parts should never be
disassembled.

BAS-311E.311EL.326E.326EL 127
Chapter 10. Option parts

■ One-touch work clamp (Option parts) BAS-326EL

3

3-1 3-2

3-5

3-5

3-3 3-4

For Supplry parts

4-2 5-2
4 5

4-1 5-1

6-1 6-2

REF.NO. CODE Q'TY NAME OF PART REF.NO. CODE Q'TY NAME OF PART

<One-touch work clamp set> 4 S20822101 1 WORK CLAMP HOLDER SET, L

3 S44414001 1 ONE-TOUCH WORK CLAMP SET 4-1 S20289101 1 WORK CLAMP HOLDER ASSY, L *
3-1 S44415001 1 ONE-TOUCH HOLDER ASSY, L * 4-2 018680822 2 BOLT, SOCKET SM4.37X6
3-2 S44417001 1 ONE-TOUCH HOLDER ASSY, R * 5 S20823101 1 WORK CLAMP HOLDER SET, R
3-3 S20289101 2 WORK CLAMP HOLDER ASSY, L * 5-1 S20293101 1 WORK CLAMP HOLDER ASSY, R *
3-4 S20293101 2 WORK CLAMP HOLDER ASSY, R * 5-2 018680822 2 BOLT, SOCKET SM4.37X6
3-5 018680822 8 BOLT, SOCKET SM4.37X6 6-1 S44415001 1 ONE-TOUCH HOLDER ASSY, L *
6-2 S44417001 1 ONE-TOUCH HOLDER ASSY, R *
"FOR SUPPLY PARTS"
✩Parts which have an asterisk (*) parts which have been assembled and adjusted to high precisions. These parts should never be
disassembled.

128 BAS-311E.311EL.326E.326EL
 Chapter 10. Option parts

■ Snap fastener and hook attachment device

M-508K M-520K
1
16 18

18 21

M-525K M-533K
21 28
1-2

25 33

M-528K OM ø7.6,ø8.6
12

15

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

<FOR M-508K> <FOR M-525K>

1 S42804001 1 WORK CLAMP SET,S.H 1 S42811001 1 WORK CLAMP SET,S.H
<FOR M-528k> <FOR M-533K>
1 S42807001 1 WORK CLAMP SET,S.H 1 S42813001 1 WORK CLAMP SET,S.H
<FOR M-520K>
1 S42809001 1 WORK CLAMP SET,S.H 1-2 153057002 2 SCREW,BUTTON HEAD SM4.37

M-508 M-525 REF.NO. CODE QTY NAME OF PARTS

<FOR M-508>
18 25
2 S18614001 1 WORK CLAMP SET,AS
<FOR M-525>
2 S18621001 1 WORK CLAMP SET,AS

BAS-311E.311EL.326E.326EL 129
Chapter 10. Option parts

310-HE DEVICE UNIT

310-SW DEVICE UNIT
<FORM -510> <FORM-10> <FORM-521>

S21553-001* S21559-001* S21565-001* S21591-001*

14 12 6.3 9.5 8
5.6
—

OM φ7.6, φ8.6
— — —

✩Parts which have an asterisk (*) parts which have been assembled and adjusted to high precisions. These parts should never be
disassembled.

■ For sewing the belt with hook

REF.NO. CODE QTY NAME OF PARTS

<For Sewing the belt with hook>

2 S13099001 1 NEEDLE PLATE,H
3 S13100001 1 FEED DOG,H

3
2

130 BAS-311E.311EL.326E.326EL
 Chapter 10. Option parts

310-HSQ DEVICE UNIT

NAME OF PARTS
M-508     MALE M-508    FEMALE M-525     MALE M-525    FEMALE

PARTS CORD S24605-101 S24614-101 S24621-101 S24628-101

16 18 21
25
HOOK SIZE (mm)

OM Ø7.6,Ø8.6

SNAP SIZE (mm)

SHAPE

BAS-311E.311EL.326E.326EL 131
Chapter 10. Option parts

310-HS DEVICE UNIT

NAME OF PARTS
M-508 MALE M-508 FEMALE M-525 MALE M-525 FEMALE

PARTS CORD S18581-001 S18590-001 S18598-001 S18606-001

16 18 21 25
HOOK SIZE (mm)

OM Ø7.6,Ø8.6

SNAP SIZE (mm)

MALE FEMALE

132 BAS-311E.311EL.326E.326EL
 Chapter 10. Option parts

■ Wide perfect device

1-6

1-1

1-1-1

1-2
1-4

1-3

1-5

1-5-1

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

1 S44795001 1 WIDE PERFECT STITCH SET 1-4-1 S40842991 1 SHUTTLE HOOK BOX ASSY,WP
1-1-1 S40837001 1 SHUTTLE RACE BASE ASSY,WP 1-4-1-1 S40842001 1 SHUTTLE HOOK,WP
1-2 S40840001 1 DRIVER,WP 1-5-1 S40843001 1 BOBBIN CASE ASSY,WP 
1-3 S40841101 1 SHUTTLE RACE BODY,WP 1-6-1 S40846001 1 MOVABLE KNIFE ASSY,WP

BAS-311E.311EL.326E.326EL 133
Chapter 10. Option parts

■ Needle cooler set

REF.NO. CODE QTY NAME OF PARTS

<Needle cooler set>

4
4 S43846009 1 NEEDLE COOLER SET
4-1 S18027101 1 NEEDLE BLOWER
4-2 S15031008 1 AIR TUBE,4L=1900
4-2 4-3 S43839008 1 SOLENOID VALVE ASSY,OP3
4-1 4-3-1 S43683001 1 SOLENOID VALVE
4-3-2 S43696000 1 VALVE HARNESS,X1
4-3-2-1 S44746000 1 VALVE HARNESS
4-5 4-3-2-2 S44750000 1 VALVE HARNESS,24V
4-4 4-3-3 S44748001 1 AIR MANIFOLD,3
4-3-4 S18415101 2 HALF UNION,Q4M5
4-3-4
4-4 S04897000 1 PLUG,4
4-5 062670812 2 SCREW,PAN SM3.57-40X8

4-3-1

4-3-2-2

4-3-2-1

■ Soft work clamp set

311E,311EL 5 326E,326EL 5

5-1

5-1
5-4 5-2 5-4 5-2

5-2
5-2

5-3 5-3

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

<Soft work clamp set> <Soft work clamp set>

5 S43979001 1 SOFT WORK CLAMP SET 5 S43979001 1 SOFT WORK CLAMP SET
5-1 S43980001 1 SPRING 5-1 S43980001 1 SPRING
5-2 S12104000 2 UNION,Y4 5-2 S12104000 2 UNION,Y4
5-3 S08140000 2 AIR TUBE,4L=200 5-3 S08140000 2 AIR TUBE,4L=200
5-4 S04897000 2 PLUG,4 5-4 S04897000 2 PLUG,4

134 BAS-311E.311EL.326E.326EL
 Chapter 10. Option parts

■ Play prevention work clamp

REF.NO. CODE QTY NAME OF PARTS

"OPTION PARTS"
75-3 S42798001 1 WORK CLAMP GUIDE BRACKET
75-4 S42799001 2 WORK CLAMP AJUSTING PLATE
75-5 S42800001 2 ADJUSTING PLATE
75-6 S42802001 2 WORK CLAMP,SE-OP
75-7 062670512 4 SCREW,PAN SM3.57-40XS
75-3

75-6

75-4

75-7
75-5

37

■ For Horizontal Wiper

For Horizontal wiper REF.NO. CODE QTY NAME OF PARTS

<For Horizontal wiper>

27 S42859001 1 THREAR WIPER ASSY, SIDE
28 S42864001 1 WIPER ARM ASSY
29 156206001 1 THREAD WIPER,A
30 S13385001 1 SCREW,SM3.57X10
31 014710522 1 SET SCREW,SOCKET (CP)SM4.76
32 S21875001 1 WASHER
33 S12668001 1 COLLAR
34 021670202 1 NUT,2 SM3.57
3 35 100659001 1 SHOULDER SCREW,SM3.18
36 021660102 1 NUT,15M3.18
37 159111001 1 SPRING
11
27 For Horizontal wiper

31 35
28

36
32 34 70
33
29
30

64 - 9

REF.NO. CODE QTY NAME OF PARTS

<For Horizontal wiper>

64-9 S42849001 1 PRESSER FOOT, XY
70 S42880051 1 PRESSER BAR, SIDE

BAS-311E.311EL.326E.326EL 135
Chapter 10. Option parts

■ Thread wiper set: Pneumatic type

3-1-10
3-1-9 3-1-8 3-5
3-3
3-4
3-2-3
3-1-11

3-1-4 3-2-1
3-1-12

3-1-1

3-1-6
3-1-1 3-2-6

3-1-7 3-1-3
3-1-13
3-2-4
3-1-5 3-2-5

3-1-2

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

<Thread wiper set: Pneumatic type> 3-1-11-1 S43843009 1 THREAD WIPER SWITCH ASSY
3 S43841009 1 TR.WIPER SET,PNEUMATIC TYPE 3-1-12 062300612 2 SCREW,PAN M3X6
3-1 S43842009 1 TR.WIPER ASSY,PNEUMATIC TYPE 3-2-1 S43844001 1 AW-SOLENOID VALVE ASSY,3
3-1-1 S17942000 1 AIR CYLINDER 3-2-1-1 S43683001 1 SOLENOID VALVE
3-1-2 S31777001 1 CYLINDER SUPPORT PLATE 3-2-1-2 S44748001 1 AIR MANIFOLD,3
3-1-3 S10214009 1 SETTING PLATE,SOLENOIDHALF 3-2-1-3 S18415101 2 HALF UNION,Q4M5
3-1-4 S18415101 2 UNION, Q4M5 3-2-1-4 S44759000 1 AW-VALVE HARNESS,A
3-1-5 062670612 4 SCREW,PAN SM3.57-40X6 3-2-1-5 S44760000 1 AW-VALVE HARNESS,B
3-1-6 S31778000 1 STOPPER,CYLINDER 3-2-1-6 S44750000 1 VALVE HARNESS,24V
3-1-7 S31779001 1 JOINT,CYLINDER 3-3 S15031008 2 AIR TUBE,4L=1900
3-1-8 S31776009 1 CYLINDER COVER 3-4 340400001 7 BEAD BAND
3-1-9 062680512 2 SCREW,PAN SM4.37-40X5 3-5 149287000 4 CORD HOLDER,7N
3-1-10 S43203000 1 EM-SWITCH ASSY 3-1-13 S02680001 1 PLUNGER PIN

136 BAS-311E.311EL.326E.326EL
 Chapter 10. Option parts

■ 2-step tension device

2-1-1
2-3 2-1-5 2-1-2
2-5 2-6 2-1-12
2-1-3

2-4
2-1-7
2-1-9
2-2-4
2-1-4

2-1-6
2-1-8
2-2-3 2-1-10
2-1-11
2-2-1

2-2-2-2
2-1

2-2-2 2-2-2-1

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

<2-step tension device> 2-1-1-12 S34536001 1 CYLINDER SETTING BRACKET

2 S43837001 1 2-STEP THREAD TENSION DEVICE SET,1 2-2-1 S43839005 1 SOLENOID VALVE ASSY,OP3
2-1-1 S43838001 1 2-STEP THREAD TENSION ASSY 2-2-1-1 S43683001 1 SOLENOID VALVE
2-1-1-1 S34706000 1 AIR CYLINDER,10X10 2-2-1-2 S43696000 1 VALVE HARNESS,X1
2-1-1-2 018302032 2 BOLT,SOCKET M3X20 2-2-1-2-1 S44746000 1 VALVE HARNESS
2-1-1-3 S12150000 2 TUBE ELBOW,M-5HL-4 2-2-1-2-2 S44750000 1 VALVE HARNESS,24V
2-1-1-4 S34533001 1 COUNTERSINK CLAW 2-2-1-3 S44748001 1 AIR MANIFOLD,3
2-1-1-5 S34534001 1 SUB TENSION BRACKET ASSY 2-2-1-4 S18415001 2 HALF UNION,Q4M5
2-1-1-6 155510001 1 TENSION NUT 2-3 017821813 2 BOLT,SM7.94X18
2-1-1-7 146060000 1 SPRING 2-4 S15031008 2 AIR TUBE,L=1900
2-1-1-8 146059001 1 PRE-TENSION NUT 2-5 340400001 5 BEAD BAND
2-1-1-9 146058001 1 PRE-TENSION SPRING 2-6 104525001 1 TENSION SPRING
2-1-1-10 146206009 1 THREAD GUIDE DISC PRESSER 2-7 149287000 3 CORD HOLDER,7N
2-1-1-11 144504001 2 THREAD GUIDE DISC

BAS-311E.311EL.326E.326EL 137
Chapter 10. Option parts

■ Auxiliary device

1-1-13

1-1-12

1
1-1-11

1-1-1
1-1-2
1-1-3
1-1-5
1-1-7
1-2

1-1-4
1-1-6
1-1-9
1-1-8
1-1-10

2-1-3

2-1-1 2-1-2

2-2
2-3
2-1-7 2-1-5
2-1-8
2-1-4 2-1-6
2-1-9

6-4 6-4

6-1

6-3
6-2-2
6-5

6-2-1

138 BAS-311E.311EL.326E.326EL
 Chapter 10. Option parts

REF.NO. CODE QTY NAME OF PARTS REF.NO. CODE QTY NAME OF PARTS

"Thread breakage detector" 2-1-1 S43279000 1 AMP UNIT

<Rotary-type> 2-1-2 062300612 2 SCREW,PAN M3X6
1 S43833009 1 TR BREAKAGE DETECTOR SET,R 2-1-3 025030232 2 WASHER,PLAIN M3
1-1 S43834009 1 TR BREAKAGE DETECTOR ASSY,R 2-1-4 S29468100 1 FIBER UNIT,N
1-1-1 S18032001 1 DETECTOR BRACKET ASSY 2-1-5 S11884001 1 SENSOR SETTING PLATE
1-1-2 144504001 2 THREAD GUIDE DISC 2-1-6 062300612 1 SCREW,PAN M3X6
1-1-3 146206009 1 THREAD GUIDE DISC PRESSER 2-1-7 S02617001 1 FACE PLATE THREAD GUIDE
1-1-4 146058001 1 PRE-TENSION SPRING 2-1-8 028350242 1 WASHER,SPRING 2-3-5
1-1-5 146059001 1 PRE-TENSION NUT 2-1-9 060670612 1 SCREW,BIND SM3.57-40X6
1-1-6 146060000 1 SPRING 2-2 S11816000 1 CLAMP,NK-2N
1-1-7 155510001 1 TENSION NUT 2-3 060670612 1 SCREW,BIND SM3.57-40X6
1-1-8 157255100 1 PULLEY,A
1-1-9 025030135 1 WASHER,PLAIN S3 <Addition valve set>
1-1-10 048020342 1 RETAINING RING,E2 6 S43847001 1 SOLENOID VALVE ASSY,OP4
1-1-11 S43835000 1 SENSOR ASSY 6-1 S43683001 1 SOLENOID VALVE
1-1-12 S18037009 1 SENSOR COVER 6-2 S43696000 1 VALVE HARNESS,X1
1-1-13 062301616 1 SCREW,PAN M3X16 6-2-1 S44746000 1 VALVE HARNESS
1-2 146080000 1 CORD BUSH 6-2-2 S44750000 1 VALVE HARNESS,24V
6-3 S44749001 1 AIR MANIFOLD,4
<Beam-type> 6-4 S18415101 2 HALF UNION,Q4M5
2 S43836001 1 TR BREAKAGE DETECTOR SET,F 6-5 S31554009 1 VALVE SETTING PLATE,4-5
2-1 S43977001 1 TR BREAKAGE DETECTOR ASSY,F

BAS-311E.311EL.326E.326EL 139
Control Block Diagram
Senoid type

Presser toot Presser plate Thread trimer Wiper Head EM switch

Solenoid Solenoid Solenoid Solenoid Thread break-
age detector

positon sensor

positon sensor
X-axis home
Synchronizer

Y-axis home
BK .............. Black
W ................ White
R ................. Red BK R O Y BL BK R O Y BL

GR .............. Green
Y ................. Yellow
BR .............. Brown
BK R W BL GR BK R W BL GR
BL ............... Blue
BK W R GR Y B BL GY
GY .............. Gray P
P ................. Pink

P
BK W R GR Y B BL GY R W GR BK Y R BK W R BK W BK R W BL GR BK R W BL GR BR BK BL BR BK BL

CONTROL PCB

BK BK R
Control box

R BK R BK
Right presser

Left presser

Pnevmatic type Air valve

plate
plate

BAS-311E.311EL.326E.326EL 140
 Operation panel box
Contol box

BK GL
W GL
R GL
GR GL
Y GL
BR GL
BL GL
GL GL
O GL
EM GL

Panel PCB

V ................. Violet
O ................. Orange
GL BK
GL GL W
GL GL R
GL GL GR
GL GR GR/Y
GL
GL R
GL GR
Foot switch
Y/GR

R
R BK BK
W
W
BK
R
Y/GR

Y/GR

R
Y Uper shaft motor
BK
R

BK

fan
Control PCB
R
Y
BK

Power supply PCB

fan

R R R(W)
O O W(BK)
BK BK
V V Y/GR
V V
GL GL
GL GL
BR R O Y GR BL V GY W BK P GR/Y
Y/GR

Programmer Y/GR
Convertion
R
BK BK trans-
BK R R former
R
BK

GY GY
R
BK R R
GY GY Filter
GY GY
R
BK BK BK

BK R BK R BK R BK R BK
unit Y/GR

Inverter
PROGRAMMER
Power switch
R R

W W

BK

Y/GR Y/GR

Power supply plug

BAS-311E.311EL.326E.326EL 141
 SERVICE MANUAL

BROTHER INDUSTRIES,LTD. NAGOYA,JAPAN

Printed in Japan 151-V11, V12, V26
I9080764
1999. 08. B (1)