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0% found this document useful (0 votes)
150 views36 pagesMG2000 Inst
Uploaded by
Victor Hugo Tabares HerreraCopyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF or read online on Scribd
/ 36
Gamato
Instruction Manual]
DOUBLE CHAINSTICHMACHINE
WITH NEEDLE FEEDING
MG2000 class
ion manual, please keep it ina
yy to access for operators.
y JAMATO SEWING MACHINE MFG. C0,L7D. Contents
AE ET
Pere roe cles 1
2. Installation
1. Installing to table.
(Choosing proper motor pulley and belt.
2 Installation of motor
3. Hanging belt.
4, Setting belt COVE ummm
5, Setting thread guide plate
6 Setting chain.
7. Setting thread stand .
8, Setting folder clamp
9. Setting optional presser foot lifter
Ee ae)
1. Lubricating oll
2. Oiling
Pine mel
ee
1. Proper needle.
2.2 Setting needle..
£263. Threading nn
£4, Adjusting stitch length...
{2..5, Adjusting thread tension ————--wnenm
fe Adjusting presser foot pressure...
(207. Raising upper feed roller a
£28. Adjusting upper feed roller pressure...
£9. Bye guard and finger guard...
L2n10. SP device
5.After operation contents
eC SE
6. Maintenance ut}
1. Adjusting looper thread tension .
2. Adjusting needle thread eyelet...
3. Checking needles height...
4. Adjusting timing between needles and loopers...
5. Adjusting needles and loopers.
6. Adjusting loopers' angle m=
7. Clearances between loopers and needles...
8 Clearance between needles and needle guards en
9. Adjusting retainers. :
10. Adjusting looper deflections nu
11. Adjusting height of feed dog...
(2.12, Adjusting presser foot position...
13, Adjusting upper feed roller’s movement (puller's feed amount
14, Adjusting height of lower roller...
15, Changing lubrication Oil enn
16. Checking and changing oil fitter
fete oa) eza
EMS eotiects rel ya
Attention
@ This instruction manual is designed @ The numbers in lower left corners
mainly for technicians, but it is of figures are figure numbers. We
advisable that also operators read use them in texts as needed for
‘the instructions with (@, mark to your reference.
use the machine properly.
Attention
The description in this instruction manual is subject to change for improvements of
the commodity without notice. A Safety instructions A
Ricks sed
Always observe the following instructions to
ensure the safe use of the industrial sewing
machines and devices.
1-1 Application and purpose
The sewing machine is designed to improve
productivity in the sewing industry and aust
not be used for other applications and
purposes. Do not use this sewing machine until
it can be confirmed that safety measures for
the drive units have been taken.
1-2 Before use
Read all instruction manuals thoroughly before
of this machine and follow
starting the us
thea.
Also, read the instruction manual for the
installed drive unit,
1-3 Working environment
DO NOT WORK IN THE FOLLOWING ENVIRONMENTS:
Place where atmosphere temperature and
humidity give @ bad influence the
performance of sewing machines.
Outdoors end place where the sewing machines
are exposed to sunlight directly.
~ Atmosphere containing dus
or flamable gases.
~ Place where voltage fluctuation exceeds 10 5
of the rated voltage.
Place where power capacity necessary for the
used motor specifications cannot be secured.
- Place where strong electric or magnetic
fields are generated such as near large-
output high frequency transmitters or high
frequency welding machines.
1-4 Unpacking and transportation
(1) Unpack from the top.
(2) Never hold the parts near the needie or
threading parts when renoving the sewing
aaachine head fron the buffer of box.
(3) hen carrying the sewing machine head,
have an assistant
(4) Pay attention not to get excessive impact
or shock when moving the sewing machine
head with a pushcart.
Peele chee sical
Always follow the instructions below for
safety when using our industrial machines
and devises.
2-1 Instruction and training
Operators and workers, who supervise, repair
or maintain the machine head and machine unit,
are required to have the adequate knowledge
and operation skills to do the job safely. In
order to establish such necessary conditions,
it needs for the employer to plan and enforce
the safety education and training to those
workers.
2-2 Sewing table and motor
(1) Prepare a machine table that has enough
strength to withstand the weight of the
sewing head and any reaction mhile
operat ng
(2) Maintain a confortable working environment
with considering the lighting and the
arrangement of sewing machine so that the
operators can work smoothly
(3) When installing the control box and the
related parts on the sewing wachine, take
care about the posture of the worker
(4) Install the drive unit correctly according
to the Instruction manus A _ Safety instructions A
2-3 Wiring
(1) Never connect the plug for pover supply until
assenbly is finished.
(2) Fix the connectors securely to the sening
ochine head, sotor, and electric apparatus.
(3) Do not apply excessive force to the conection
cords,
(4) Connect the cords avay from the driving parts.
(5) Place the ground wire securely to the
designated position on the wachine heat
2-4 Before operation
(1) Take care not to attach Lubricant,
silicone oil, and grease on the eyes or
skin,
Keep them avay fron children
(2) Be sure to f111 or drop lubrication oil
before operating the sewing zachine.
Use the Yamato SF oil as specified,
(3) Never put your hand under the needle or
near the moving parts of the machine when
turning en power supply switch.
(4) When operating a nen sewing aachine, make
sure the rotating direction of pulley
agrees with the rotating-direct ion mark.
2-5 During operation
(1) Be sure to operate the sewing machine with
the safeguards such as belt cover, finger
guard, and eye guard.
(2) Never place the finger, hair or objects
under the needle or close to the moving
parts while operating the sewing machine,
(3) Be sure to turn off the power supply
switch when threading or replacing the
needles,
er place your hands cl
when operating the sewing machine with the
trianing devices.
Be sure to turn off the power supply
switch when terminating the sewing work or
se to the
leaving the sewing machine.
(6) If the sewing machine malfunctions,
abnormal sound or smell sonething unusual
while operating, be sure to turn off the
power supply switch.
2-6 Removal
(1) Turn off the power supply switch if
removed or replaced any parts or during
adjustnent of sewing machine.
(2) Do not pull the cord when removing the
plug. Be sure to hold the plug itself.
(3) A high voltage is applied inside the
control tox. Turn off the poner supply
switch and 5
nore than 5 minutes before
opening the cover.
3. Maintenance, inspection,
Eyercma- ele
(1) Follow the instruction manuals for
maintenance, inspection, and repair.
(2) Entrust the maintenance, inspection, and
repair to specially trained personnel.
(3) Be sure to turn off the power supply
switch and make sure the sewing machine
and wotor completely stop before the
maintenance, inspection, and repair. (1F
using a clutch motor, take care that the
fnotor Keeps turning for a while even after
turning off the poner supply switch.)
(4) Do not wodify the sewing machine by the
custoser's judgnent
() Be sure to use original replacenent parts
for repairs or maintenance. Safety instructions A
PMs iseanecloee etc
LOS}
This instruction manual contains the following
caution signs and alert pictorial markings to
prevent you from injuring yourself or the
sewing machine fron being danaged.
Please follow the instruct ions.
4-1 Meanings of caution signs
WARNING indicates potentially hazardous
situations which, If not heeded, could re:
in death or serious injury to you and others.
Caution indicates hazardous situations which,
if not heeded, may result in minor or moderate
injury to you and others, or may result in
nachine daxage
4-2 Alert pictorial markings
This wark indicates the warning which,
if not heeded, could result
or Serious injury.
in death
This mark indicates the caution for
high temperature.
‘This mark indicates the warning which,
if not heeded, could result in death
or Serious injury.
High-voltage appties in the control
box. This label that
electric shock may be caused.
indicates
is sark indicates the caution which,
if not grounded, the machine or device
could malfunction and could result in
personal injury.
ii
Fo nie pens ecubsc Un nee tce)
This instruction manual contains the following
caution signs and alert pictorial markings to
prevent you fron injuring yourself or the
sewing machine from being daraged
Please follow the instructions.
Axsaumon, A
This label indicates that removal
of the safeguards and works
except for sewing performatice
‘while the power supply switch is
on are prohibited. (For details,
see the next page)
High-voltage applies in the
control box. This label indicates
that electric shock may be
This label is affixed on the
safeguards. Considering the
operation, itis not affived on the
finger guard and eye guard. Be
sure to operate with the finger
guard and eye guard in postion.
TAT Stepping moor and solenoid
a
Gite take ae not tc
ae _
lenot connected earth ine static
electricity may be generated and
inflict injury on person. In
addition, the malfunction of
elect
topa
m may cause injury
Check the rotating di
machine pulley agrees with
ROTATING-DIRECTION
SYMBOL A Safety instructions A
6. Where to attach pictot markings
The drawings below show where the pictorial markings should be attached for safe operation.
Keep the markings clean, and change them to new ones when they become damaged or lost
This is attached tothe bet cover.
Do nat operate without eye guard
|] and satey devices.
|| Setore reading, enanging needa,
cleting oe switch off main switch. Name of each part
oil sight window
upper feed roller
lifting lever oil sign ree guide plate
@adjusting screw for
upper feed roller
adjusting screw
for presser foot
SP device machine pulley
= — @ thread tension
spring cap
eye ouara
finger guard oil sight gauge
looper thread take-up
stitch plate holder
ce feed roller @rooper thread eyelet
@lower roller feed dog regulating button 2. Installation
ZAWARNING
Don't connect the plug before preparation of
the machine is completed. If not, the machine
can function unexpectedly and cause injury.
UPS tye) Lele com cle) cs
Z\WARNING
The machine weights more than 45 kg. Don't
unpack, ship, and install the machine when
‘there is only one worker. The machine weights
(Top installation (the standard type))
Install the machine correctly referring to the figures
(006, 007, and 008).
1. Set the bolts and the nuts to the table.
2.Set the oil reservoir rubber cushions on the bolts.
3 Set the machine on the rubber cushions stably.
table
a: cmancion of ale 1
oo 5 40 instalation
(Semi-submerged installation)
Install the machine correctly referring to the
figures (009, 010, and 011).
|
wa
‘ ele for passing a lpe and cord 5, :
/ |
(( ; me a
\ a8 I< |
on
Crap snd ears 50“
eZ
operon
STONE
1200 505 «50.
“section XX 2. Installation
2 SSA a RSS EERSTE
eS
! Choosing proper motor pulley and belt tl
1, Choosing proper motor pulley 1
The maximum sewing speed of this machine is 6000 spm, : '
For common use, run it with 4500 spm However, when Moter puleys and machine's rotating speed
the stitch length is more then 45 mm, the maximum | Susidedameter | rotzingspeed | se ornare | |
‘of motor pulley pm) |
sewing speed is 4000 spam, and for common use, run it ‘om {Sore Teo} top [som] I
vith 3600 spm. When the machine has a puler tte [es Tsao fiesta] I
maximum sewing speed is 4000 ssp, and for common 7a | | 3700 | wea | 87 i
80 3506 | e200" eae eas
vse rn i th See te sight gran a a 3800 | e200 [to |W
i, run it with 3500 spm, See the right diagram and = Footwear Mae] |
choose a proper motor pulley “00 [4300 | Maa]
Tro faao0 [> these fees
1
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1 Getpfut hint)
1 Runa new machine with 15 - 20 % lower rotating speed of
I its spam during the first 200 hours (about one month) so.
I
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‘
Note:The table shows the ough relations
between motor pulleys’ outside J
‘that it will offer a long service life in good condition. diameter and machine's rotating
speed when it uses 3-phase, 2-pole,
ZX CAUTION 400W (1/2 HP) clutch motor. t
Use only those motor puleys which apply to this
machine. If not, the machine can over the speed
limit and be damaged.
2. Regarding belt
Use a V belt of M type.
2. Installation of motor (it
ie
machine ply
@ When the pedal is treaded, the motor pulley | i 2,
moves to the left. Here, the center of the motor ' Ttesem
pulley and that of the machine pulley must be on on
the same line. rotor pulley |
|| Mapectv ber
Note: Regarding how to install a motor pulley, foyp
see the instruction manual for the motor.
@ install the motor so that the machine pulley
rotates counterclockwise,
AX CAUTION
lf the machine pulley reverses, oll cannot be
supplied properly and the machine can be
damaged.
Jong motor puey——~ SZ Installation
2 ee ESE SEE TS SE STS
Ascii esa
1. Hang the belt( on the machine pulley,
2. While rotating the pulley®), hang the other end of
the bolt on the motor pulley®
3. Adjust the belt so that it has 10 - 20 mm slack
when its center is pushed with 10 N (1.02 kafl
(After installing the idlers)
Jor5,
4, After finishing hanging, fix the belt with the rock
AXWARNING =)
ff the
Before changing a belt, ALWAYS turn
power switch and check if the motor has
already stopped.
If not, the belt can entangle in hands and
clothes and cause injury.
CM isiaceimeeoe
1. Mount the belt cover® to the machine as shown
in FigO16.
2. Fasten the belt cover (lower)® to the table with
the wood screws@ as shown in Fig017.
(Only for table top type)
AXWARNING
Never forget to set the belt covers.
If not, the belt can entangle hands, clothes, or
sewing materials and cause injury or damage.
loz 2. Installation
5. Setting thread guide plate
1, Set two {\ holes of the thread guide plate®) to
‘two screws. Then press the plate® down
2. Tighten the screws@® and fix the plate@.
sessile eelatlia]
1. Hang the hook@ of the chain@ on the lifter lever
6
2. Fix the other hook of the chain to the pedal
Bal Bina le ese lls
Set the thread stand to the table.
SUSUR coum len ss
Set the folder clamp® with two screws@ as shown
in Fig. 020, 021, and 022.
021 sriached)
surtace where folder clama is
022, 2, Inatallation
CoM ciaee pee bec mie dice
1. Loosen the nut@ on the cylinder rod chip@ to
the limit. Then, tighten the chip@® to the limit.
2. Install the air cylinder C. set to the back of the
machine with two screws@ and two washers®
as shown in Fig 086,
3. Install the air regulator® and the solenoid valve
@ under the table.
4, Connect the air pipe® as shown in Fig087.
5, Set the air regulator® to 0.4 MPa,
6. Connect the connecting plug of the solenoid
vaive@ to the connecting plug for air cylinder on
‘the motor control box
7. Tum on the power switch of motor.
8 Tread the pedal and lift up the presser foot,
9. Adjust the cylinder rod chip@ by taking the
following steps.
1) While pressing slowly down the lifter lever,
tum the chip@ and lower the lever@) to where
it touch the lifter lever stopper®.
2) Tighten the nut@ and fix the chip®.
10, Lower the presser foot and check if there is 2
clearance between the lever® and the chip®. If
there is no clearance, loosen the nut@) and the
chip@ a little and make a clearance.
7
los?
jose, 3. Lubrication
ibricating oil
{When starting to use the machine)
‘At shipment, oil is drained, Before starting to use
the machine, put the oil into the machine.
© Fitting oil: Yamato SF 28 Oi!
© Oi amount : 1000 ce
Z\ CAUTION
Never add additives to lubricating oll. If added,
it can cause deterioration of oil and damage the
machine.
To supply cil, remove the rubber seal plug® which
has the letters of "OIL" and put oll, Make sure that
the oil surface is at the same level as the upper line
on the oil sight gauge®,
{Checking before using the machine)
1. Check if the oil surface is between two red lines
on the oil sight gauge. If the surface is under the
lower fine, supply the oil, (See page 25)
2. Check through the oil sight window@ if the oil is
splashing from the nozzle when the machine
starts to rotating, If not, check the oil fitter, and if
needed, change the filter. (See "Checking and
changing oil filter" on page 26)
When starting to use the machine or after the
machine hasn't operated long time, supply the oil to
the needle bar@ and the retainer® with a few 4. Proper operation
1. Proper needle
Use DV x 57(62 x 57, SY3260, 5640) #18~25 (the
standard needle is #21) as the needle for this
machine
2. Setting needle 4
ZX\WARNING ——
1. Loosen the screw® for the needle@ with @
screw driver
When changing a needle, pull out the old one
with tweezers.
insert a new needie into the hole in the needle
ezers as high as possible. Here,
long groove faces
cramp@ with tw
make sure that the needie’
the
@ for the needle.
3. Tighten the screw
Attention
After changing needles, check if the clearances
between loopers and needles and between the
needles and the needle holders are proper.
(See page 19)
standard
matte || 10} 212 120 vo) 0 e010
wanese |se] 01 soon an 22] o8]oe los] 4Proper operation
Parcells)
Z\WARNING
Before threading the machine,
ALWAYS turn off the power
switch and check if the motor
had already stopped. If not, it can
‘cause injury.
@ If the thread is wrong, skip
stitches, thread break, and
irregular stitches can happen.
‘Thread the machine as shown in Fig
(031 and 032,
Note: When the machine is already
threaded, tie to these threads
other threads which will be
used for sewing.
for MG-2004
lost
Regarding MG-2002
(Threading needle threads)
1. Draw the knots to the front of
the needles.
2. Cut the knots and pass the
threads through the needie
eyes again.
10 Proper operation
{Threading looper threads)
1. Pull up the looper throw-out lever to the limit,
ZAX\WARNING
Never pull up the looper throw-out lever) while
the machine is rotating. If not, it can cause
injury. Before pulling up the lever, turn off the
power switch and check if the motor had
already stopped.
2. Rotate the pulley@ counterclockwise.
‘As the P mark on the pulley is approaching the
indication mark@, the pulley@ and the lever
become heavier to rotate or to push.
3. While keeping the lever( on the same position,
rotate the pulley® counterclockwise further.
Then, the loopers@ fall to the front
(ie
035,
4, Thread the loopers®.
5, Rotate the pulley counterclockwise, Then, the
loopers@ click into place.
VW
037, Proper operation
4. Adjusting stitch length &&
ZAXWARNING
Before adjusting stitch length, ALWAYS turn,
off the power switch and check if the motor
had already stopped. If not, it can cause injury.
AX CAUTION
After adjusting stitch lenath, check the timing
between the loopers and the retainers. (See
page 21.)
The stitch length can be adjusted from 21 mm to
64 mm,
Note: Real stitch length on a material can change
according to the kind and thickness of
materials
«Changing stitch lengt)
1. Push the feed dog regulating button softly by
the left hand. Here, you feel that the tip of the
button touches an inner part of the machine.
2. While keeping pushing the button softly,
rotate the pulley@ counterclockwise by the
right hand. Here, the button ® goes into further,
so push it hard.
3. While keeping pushing the button, set the
mark on the pulley to the indication mark,
4, Then, stop pushing the button.
Attention
At shipment, the machine is adjusted under the
condition that the indication mark on the machine
pulley is set to.3.
When stitches become irregular after stitch
lengthis changed greatly, readjust the timing
betweenthe needles and ioopers (see pages 17
and 18) and between the loopers and the
retainer (see page 21). 5, Adjusting thread tension [ea
Thread tension changes according to kinds of
materials, threads, stitch width and length, and
using conditions.
Adjust the thread tension by turning the thread
tension spring cap©.
Sao
‘Adjust the presser foot pressure as low as possible
within the limits that irregular stitches aren't made.
To adjust the pressure, loosen the rock nut@ on
the adjusting screw@ and turn the screw. After
making adjustment, tighten the nut@.
@To increase the pressure, turn the screw clockwise.
@To decrease the pressure, turn the screw
counterclockwise,
7. Raising upper feed roller
(for machine with puller)
When a material jams, press the upper feed roller
lifting lever® and raise the upper feed roller,
To keep the roller up, push down the lever'®.
‘8. Adjusting upper feed roller pressure’
mua nae
Adjust the upper feed roller pressure as low as
possible within the limits that the upper feed
roller@ and the lower can feed a material
To increase the pressure, turn the adjusting
screw® clockwise.
@To decrease the pressure, turn the adjusting
screw® counterclockwise.
los2
04a Proper operation
Eye guard and finger guard
——— A\WARNING
Never remove the eye guard and the finger
guard when operating the machine, Also, bring
down the eye guard to the set position.
This machine has a SP device. When rotating the
machine at high speed, sewing with synthetic fibers,
or sewing a synthetic material, use the SP device to
prevent thread breaks and skip stitches.
Use silicon oil (dimethyl silicon oi) for the device.
{Checking before operation)
Open the lid® of the SP container and check if
there is proper amount of silicone oil. If not, supply
the oil
ZX CAUTION
@ When not using the SP device, remove the
felt® from the container. If not, it can make
sewing condition worse.
@ Make sure that silicon oil never remain
sticking to other parts than the SP device.
Wipe out that oil If not, the machine can be
damaged. 5. After operation
AXWARNING
Before cleaning the machine, ALWAYS turn off
the power switch and check if the motor had
already stopped. If not, the machine can
function unexpectedly and cause injury.
@ After a day's operation, remove lint and dust from
the machine,
@ At least once @ week, remove the presser foot and
the stitch plate holder, and clean the slot of the
stitch plate and the area around the feed doa
18 6. Maintenance
Z\CAUTION
Before maintenance, ALWAYS tum off the power
‘switch and check if the motor has already stopped.
Pe Cionthstmihoe ns
(Basic adjustment)
1. Move the looper thread take-up@ into the
horizontal position. Then tighten the screw®
‘securely in the middle of the take-up's slot
2. Loosen the screw@) on the take-up®, and
adjust the take-up's position so that it pulls
threads in the middle of the looper thread
eyelet2. Then, tighten the screw®.
Note: This is the standard position.
(Changing looper thread tension)
To increase the tension, move the looper thread
take-up@ to direction Y in the right figure
aftermaking the above adjustment.
To decrease the tension, move the take-up to
direction X in the right figure after making the
above adjustment.
Here, also adjust the looper thread eyelet@.
Note: When the eyelet@ moves to direction U, the
tension increases, and when the eyelet@
moves to direction D, the tension decreases.
On normal occasion, however, don't make
this adjustment,
Do not lower the eyelet® toward direction
D from the position where when the take-up
is in the lowest position, the thread hole
of the take-up@ and that of the eyelet@ are
in the same line, (See Fig 048-1) Maintenance
Pett
At shipment, from the center of the screws@ to
that of the thread holes is 10 - 13 mm,
(Making adjustment)
Loosen the screw() and move the eyelet@ to the
proper position. Then, tighten the screw(D.
@To decrease thread tension, raise the eyelet@.
@ To increase thread tension, lower the eyelet®.
EPR elo lec me cic licmehel Lah