HYDRAULIC/HYDROSTATIC SCHEMATIC

MANUAL WITH NO OPTIONS

S650 (S/N ALJ811001 AND ABOVE)
(S/N B2LA11001 AND ABOVE)
(PRINTED MARCH 2015)
V-1470legend
LEGEND
1 RESERVOIR: 39 CHARGE PUMP -
19 PULL BUTTON ACTIVATED
Capacity at sight gauge . . 10,2 L (2.7 U.S. gal) 51,1 L/min (13.5 U.S. gpm) at High Engine Idle
DIRECTIONAL CONTROL VALVE - LIFT
System Capacity . . . . . . . 41,6 L (11.0 U.S. gal) ARM BY-PASS 40 HYDRAULIC PUMP . . . . . . . Gear Type
87,1 L/min (23.0 U.S. gpm) at High Engine Idle
2 SIGHT GUAGE 20 LIFT CYLINDER SPOOL - MADE TO
41 VARIABLE CAPACITY DISPLACEMENT
DIFFERENTIAL PRESSURE SWITCH: RESTRICT FLOW DURING BOOM
3 DOWN BUT NOT DURING BOOM UP BIDIRECTIONAL HYDROSTATIC PUMP
103 kPa (1,03 bar) (15 psi) RELIEF/REPLENISHING VALVE - HIGH
Normally Closed 42
21 RELIEF VALVE - 24132 kPa (241 bar) PRESSURE: 36500 kPa (365 bar) (5294 psi)
4 FILTER - HYDRAULIC (CANISTER) (3500 psi) (If Equipped)
43 RELIEF VALVE - CHARGE INLET:
SPRING LOADED FILTER BY-PASS 22 ANTICAVITATION VALVE 3034 +/- 344 kPa (30,3 +/- 3 bar)
5
VALVE: 172 kPa (1,7 bar) (25 psi) (440 +/- 50 psi) at High Engine Idle
23 PROPORTIONAL RELIEF VALVE –
6 DIAGNOSTIC COUPLER (Fan Speed Regulator): 10797 – 12300 kPa With 60 ° C (140 ° F) Fluid
(108 - 123 bar) (1566 - 1784 psi) 44 CHECK VALVE – COLD WEATHER
7 RELIEF VALVE - MAIN: BY-PASS With 345 kPa (3,45 bar)
24132 kPa (241 bar) (3500 psi) 24 SPRING LOADED FILTER BY-PASS VALVE: (50 psi) Spring
at Front Quick Couplers 517 – 572 kPa (5,2 - 5,7 bar) (75 - 83 psi)
45 FRONT AUXILIARY MANUAL PRESSURE
NOTE - If Equipped With Ref. 21: 25 FIXED CAPACITY DISPLACEMENT
HYDRAULIC MOTOR BLEED-OFF VALVE
25855 kPa (258 bar) (3750 psi)
RELIEF/ANTICAVITATION VALVE - 26 FILTER - HYDRAULIC (CANISTER)
8
PORT: 27579 kPa (276 bar) (4000 psi)
27 SENSOR – CHARGE PRESSURE –
9 RELIEF/ANTICAVITATION VALVE - Fan Filter
PORT (OPTIONAL): 27579 kPa 28 SENSOR – HYD. TEMPERATURE
(276 bar) (4000 psi) 29 RESTRICTION - 1,5 mm (0.06 in)
10 SOLENOID ACTIVATED DIRECTIONAL
30 CHECK VALVE - With 1379 kPa 13,8 bar
CONTROL VALVE - AUXILIARY
(200 psi) Spring
11 LOAD CHECK VALVE 31 DRIVE MOTOR SHUTTLE VALVE
12 ANTICAVITATION VALVE 32 NOT USED FOR THIS MODEL
13 PILOTED ACTIVATED DIRECTIONAL
CONTROL VALVE - TILT CONTROL 33 NOT USED FOR THIS MODEL
14 PILOTED ACTIVATED DIRECTIONAL FIXED CAPACITY DISPLACEMENT
34
CONTROL VALVE - LIFT CONTROL BIDIRECTIONAL HYDROSTATIC MOTOR
15 SOLENOID ACTIVATED DIRECTIONAL 35 NOT USED FOR THIS MODEL
CONTROL VALVE - BICS CONTROL
16 FILTER - BICS CONTROL VALVE 36 NOT USED FOR THIS MODEL
(SCREEN)
17 CHECK VALVE - With 100 kPa (1,0 bar) 37 NOT USED FOR THIS MODEL
(14.5 psi) Spring
38 NOT USED FOR THIS MODEL
18 RESTRICTION . . . . . . . 2,0 mm (0.079 in) NOTE: Unless otherwise specified springs have
NO significant pressure value.
Printed in U.S.A. V-1470legend (3-31-15)
 INTEGRATED COUPLER BLOCK

Male

DRIVE MOTOR
45
30 Male
OUT

L HYDRAULIC CONTROL VALVE

31 45
29 Female

34
9

10
10
A B Auxiliary Spool

21

6
HYDROSTATIC PUMP 44 BOBCAT INTERLOCK CONTROL SYSTEM
8 11 (BICS)
R
41 TILT BASE

TILT ROD

X Tilt Spool

8
42 13 TILT CYLINDERS
X

11
LIFT ROD

14
M 12
M
D C LIFT BASE

M
Lift Spool
43 42
8
A
LIFT CYLINDERS
B
M
NOTE: CUSHIONED
20 16 LIFT CYLINDERS ON
M LATER MODELS ONLY
11 15
IN
2 18
7 16
42 6
42
17

1
Oil Cooler
19
41
RESERVOIR
T 2 (VENTED)
5 1
R
40

39

VARIABLE SPEED HYDRAULIC 3 4

FAN MOTOR W/ INTEGRATED FILTER
HYDRAULIC FILTER

26 24
WORKING CIRCUIT
27
CHARGE
PRESSURE
22
DRAIN / RETURN

B A
25

P DR
23

34

28 HYDRAULIC/HYDROSTATIC SCHEMATIC
29
MANUAL WITH NO OPTIONS
31
L
S650 (S/N ALJ811001 AND ABOVE)
30 (S/N B2LA11001 AND ABOVE)
DRIVE MOTOR
DRAIN / RETURN MANIFOLD (PRINTED MAY 2018)

7170812 (G)

PRINTED IN U.S.A.
 HYDRAULIC/HYDROSTATIC SCHEMATIC
MANUAL WITH ALL OPTIONS
S650 (S/N ALJ811001 – ALJG13901)
(S/N S1ML11001 AND ABOVE)
(S/N B2LA11001 – B2KZ11042)
(PRINTED MARCH 2015)
V-1470legend
LEGEND
1 RESERVOIR: CHARGE PUMP -
19 PULL BUTTON ACTIVATED 39 57 SOLENOID ACTIVATED DIRECTIONAL
Capacity at sight gauge . . 10,2 L (2.7 U.S. gal) 51,1 L/min (13.5 U.S. gpm) at High Engine Idle CONTROL VALVE - BUCKET POSITION
DIRECTIONAL CONTROL VALVE - LIFT
System Capacity . . . . . . . 41,6 L (11.0 U.S. gal) ARM BY-PASS 40 HYDRAULIC PUMP . . . . . . . Gear Type VALVE (ON/OFF)
87,1 L/min (23.0 U.S. gpm) at High Engine Idle 58 FLOW DIVIDER ADJUSTMENT VALVE
2 SIGHT GUAGE 20 LIFT CYLINDER SPOOL - MADE TO
41 VARIABLE CAPACITY DISPLACEMENT
DIFFERENTIAL PRESSURE SWITCH: RESTRICT FLOW DURING BOOM 59 PILOTED ACTIVATED DIRECTIONAL CONTROL
3 DOWN BUT NOT DURING BOOM UP BIDIRECTIONAL HYDROSTATIC PUMP
103 kPa (1,03 bar) (15 psi) VALVE - FLOW CONTROL SPOOL
42 RELIEF/REPLENISHING VALVE - HIGH
Normally Closed 21 RELIEF VALVE - 24132 kPa (241 bar) 60 CHECK VALVE - BUCKET POSITION VALVE
PRESSURE: 36500 kPa (365 bar) (5294 psi)
4 FILTER - HYDRAULIC (CANISTER) (3500 psi) (If Equipped)
43 RELIEF VALVE - CHARGE INLET: 61 PILOTED ACTIVATED DIRECTIONAL
SPRING LOADED FILTER BY-PASS 22 ANTICAVITATION VALVE 3034 +/- 344 kPa (30,3 +/- 3 bar) CONTROL VALVE – UNLOADING SPOOL
5
VALVE: 172 kPa (1,7 bar) (25 psi) (440 +/- 50 psi) at High Engine Idle 62 HIGH FLOW HYDRAULIC PUMP Gear Type
23 PROPORTIONAL RELIEF VALVE –
6 DIAGNOSTIC COUPLER (Fan Speed Regulator): 10797 – 12300 kPa With 60 ° C (140 ° F) Fluid 28,4 L/min (7.5 U.S. gal) at High Engine Idle
(108 - 123 bar) (1566 - 1784 psi) 44 CHECK VALVE – COLD WEATHER 63
7 RELIEF VALVE - MAIN: RELIEF VALVE - 24132 kPa (241 bar) (3500 psi)
BY-PASS With 345 kPa (3,45 bar)
24132 kPa (241 bar) (3500 psi) 24 SPRING LOADED FILTER BY-PASS VALVE: (50 psi) Spring 64 DUMP VALVE – ON / OFF
at Front Quick Couplers 517 – 572 kPa (5,2 - 5,7 bar) (75 - 83 psi)
45 FRONT AUXILIARY MANUAL PRESSURE
NOTE - If Equipped With Ref. 21: 25 FIXED CAPACITY DISPLACEMENT 65 CHECK VALVE - With 34,5 kPa (0,34 bar)
HYDRAULIC MOTOR BLEED-OFF VALVE
25855 kPa (258 bar) (3750 psi) (5.0 psi) Spring
26 FILTER - HYDRAULIC (CANISTER) 46 PILOT ACTIVATED DIRECTIONAL
8 RELIEF/ANTICAVITATION VALVE - 66 PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE – HYDRAULIC
PORT: 27579 kPa (276 bar) (4000 psi) CONTROL VALVE - REAR AUXILIARY
27 SENSOR – CHARGE PRESSURE – POWERED BOB-TACH With Build-up
9 RELIEF/ANTICAVITATION VALVE - Fan Filter Valve: 207 kPa (2,07 bar) (30 psi) 67 RELIEF VALVE: 22753 kPa (228 bar) (3300 psi)
PORT (OPTIONAL): 27579 kPa 28 SENSOR – HYD. TEMPERATURE 47 FILTER - BOB-TACH VALVE 68 SOLENOID ACTIVATED DIRECTIONAL
(276 bar) (4000 psi) 29 RESTRICTION - 1,5 mm (0.06 in) 48 RESTRICTION - 2,08 mm (0.08 in) CONTROL VALVE - TWO COIL
10 SOLENOID ACTIVATED DIRECTIONAL 69 RESTRICTOR - 0,8 mm (0.031 in)
30 CHECK VALVE - With 1379 kPa 13,8 bar 49 SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - AUXILIARY
(200 psi) Spring CONTROL VALVE (TWO COIL)
11 LOAD CHECK VALVE 70 LOAD SHUTTLE VALVE - BLEED OFF
31 DRIVE MOTOR SHUTTLE VALVE 50 RELIEF VALVE - 8274 kPa (83 bar) (1200 psi)
12 ANTICAVITATION VALVE 32 PILOT ACTIVATED DIRECTIONAL 71 SOLENOID ACTIVATED DIRECTIONAL
51 CHECK VALVE - With 552 kPa)
CONTROL VALVE – 2 Speed Shift CONTROL VALVE - BASE
13 PILOTED ACTIVATED DIRECTIONAL (5,5 bar) (80 psi) Spring
33 FIXED CAPACITY DISPLACEMENT 52 72 SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - TILT CONTROL RELIEF VALVE - 13790 kPa
BIDIRECTIONAL HYDROSTATIC MOTOR CONTROL VALVE - ROD
14 PILOTED ACTIVATED DIRECTIONAL (137 bar) (2000 psi)
34 FIXED CAPACITY DISPLACEMENT
CONTROL VALVE - LIFT CONTROL 53 CHECK VALVE - With 2068 kPa (20,7 bar) 73 RIDE CONTROL VALVE
BIDIRECTIONAL HYDROSTATIC MOTOR
(300 psi) Spring And With
15 SOLENOID ACTIVATED DIRECTIONAL 35 HYDRAULIC BRAKE – SPRING APPLIED – 74 HIGH PRESSURE CHAMBER
0,40 mm (0.016 in) Orifice
CONTROL VALVE - BICS CONTROL PRESSURE RELEASE (SAPR)
54 RESTRICTION - 0,51 mm (0.020 in) 75 LOW PRESSURE CHAMBER
16 FILTER - BICS CONTROL VALVE 36 SOLENOID ACTIVATED DIRECECTIONAL
(SCREEN) CONTROL VALVE – BRAKE 55 SHUTTLE VALVE
17 CHECK VALVE - With 100 kPa (1,0 bar) 37 FILTER – BRAKE VALVE
56 RESTRICTION - 0,51 mm (0.020 in)
(14.5 psi) Spring SOLENOID ACTIVATED DIRECTIONAL
38
18 RESTRICTION . . . . . . . 2,0 mm (0.079 in) CONTROL VALVE – 2 Speed Shift
NOTE: Unless otherwise specified springs have
NO significant pressure value.
Printed in U.S.A. V-1470legend (3-31-15)
 INTEGRATED COUPLER BLOCK

DRIVE MOTOR Male

L
45
30 29
31 Male
OUT
HYDRAULIC CONTROL VALVE 65
45
Female

9
RIDE CONTROL
75 (FIELD INSTALLED OPTION) 74
32

33 9
34 NOTE: CUSHIONED
REAR QUICK LIFT CYLINDERS ON
FEMALE COUPLERS MALE 10 LATER MODELS ONLY
35 10 LIFT CYLINDERS
Z
Auxiliary Spool
A B 70
73
72
21
71
68 6
HYDROSTATIC PUMP BOBCAT INTERLOCK CONTROL SYSTEM
8 11 (BICS)
R
41 TILT BASE

T
E1 E2 A1 A2

TILT ROD E3
69
X Tilt Spool

8 B 58
42 13
2-SPEED & X
SAPR BRAKE 67
VALVE 11
(OPTIONAL) LIFT ROD 57 60

66 14 D2
38
B A M REAR AUXILIARY P in P out T 12
36 M 59
D C VALVE (OPTION)
T LIFT BASE

M
Lift Spool
43 42
61 C2
8
C1 D1
P B A
POWER BOBTACH
M VALVE (OPTIONAL) 20 16
B1
M
11 15 BUCKET POSITIONING
37 55
51 VALVE (OPTIONAL)
50 IN
2 18
53 7 16
42 6
42
17
52

TILT CYLINDERS
1
Oil Cooler
19
41 44 56
49 48 RESERVOIR
T D 54 2 (VENTED)
5 1
R
40
47
46
39

VARIABLE SPEED HYDRAULIC 3 4

FAN MOTOR W/ INTEGRATED FILTER
HYDRAULIC FILTER
62
63 64

26 24
WORKING CIRCUIT
27
CHARGE
PRESSURE
22
35 DRAIN / RETURN
B A

25

Z P DR
23
33 34

32

X
HYDRAULIC/HYDROSTATIC SCHEMATIC
28
MANUAL WITH ALL OPTIONS
S650 (S/N ALJ811001 - AHGL13901)
(S/N S1ML11001 AND ABOVE)
(S/N B2LA11001 - B2LA11042)
30 29
31
L DRAIN / RETURN MANIFOLD (PRINTED MAY 2018)
DRIVE MOTOR

7170812 (G)

PRINTED IN U.S.A.
 HYDRAULIC/HYDROSTATIC SCHEMATIC
MANUAL WITH ALL OPTIONS
S650 (S/N ALJ813902 - ALJ819181)
(S/N B2LA11043 - B2LA11457)
(PRINTED JULY 2017)
V-1470legend
LEGEND
1 RESERVOIR: CHARGE PUMP -
19 PULL BUTTON ACTIVATED 39 57 SOLENOID ACTIVATED DIRECTIONAL
Capacity at sight gauge . . 10,2 L (2.7 U.S. gal) 51,1 L/min (13.5 U.S. gpm) at High Engine Idle CONTROL VALVE - BUCKET POSITION
DIRECTIONAL CONTROL VALVE - LIFT
System Capacity . . . . . . . 41,6 L (11.0 U.S. gal) ARM BY-PASS 40 HYDRAULIC PUMP . . . . . . . Gear Type VALVE (ON/OFF)
87,1 L/min (23.0 U.S. gpm) at High Engine Idle 58 FLOW DIVIDER ADJUSTMENT VALVE
2 SIGHT GUAGE 20 LIFT CYLINDER SPOOL - MADE TO
41 VARIABLE CAPACITY DISPLACEMENT
DIFFERENTIAL PRESSURE SWITCH: RESTRICT FLOW DURING BOOM 59 PILOTED ACTIVATED DIRECTIONAL CONTROL
3 DOWN BUT NOT DURING BOOM UP BIDIRECTIONAL HYDROSTATIC PUMP
103 kPa (1,03 bar) (15 psi) VALVE - FLOW CONTROL SPOOL
42 RELIEF/REPLENISHING VALVE - HIGH
Normally Closed 21 RELIEF VALVE - 24132 kPa (241 bar) 60 CHECK VALVE - BUCKET POSITION VALVE
PRESSURE: 36500 kPa (365 bar) (5294 psi)
4 FILTER - HYDRAULIC (CANISTER) (3500 psi) (If Equipped)
43 RELIEF VALVE - CHARGE INLET: 61 PILOTED ACTIVATED DIRECTIONAL
SPRING LOADED FILTER BY-PASS 22 ANTICAVITATION VALVE 3034 +/- 344 kPa (30,3 +/- 3 bar) CONTROL VALVE – UNLOADING SPOOL
5
VALVE: 172 kPa (1,7 bar) (25 psi) (440 +/- 50 psi) at High Engine Idle 62 HIGH FLOW HYDRAULIC PUMP Gear Type
23 PROPORTIONAL RELIEF VALVE –
6 DIAGNOSTIC COUPLER (Fan Speed Regulator): 10797 – 12300 kPa With 60 ° C (140 ° F) Fluid 28,4 L/min (7.5 U.S. gal) at High Engine Idle
(108 - 123 bar) (1566 - 1784 psi) 44 CHECK VALVE – COLD WEATHER 63
7 RELIEF VALVE - MAIN: RELIEF VALVE - 24132 kPa (241 bar) (3500 psi)
BY-PASS With 345 kPa (3,45 bar)
24132 kPa (241 bar) (3500 psi) 24 SPRING LOADED FILTER BY-PASS VALVE: (50 psi) Spring 64 DUMP VALVE – ON / OFF
at Front Quick Couplers 517 – 572 kPa (5,2 - 5,7 bar) (75 - 83 psi)
45 FRONT AUXILIARY MANUAL PRESSURE
NOTE - If Equipped With Ref. 21: 25 FIXED CAPACITY DISPLACEMENT 65 CHECK VALVE - With 34,5 kPa (0,34 bar)
HYDRAULIC MOTOR BLEED-OFF VALVE
25855 kPa (258 bar) (3750 psi) (5.0 psi) Spring
26 FILTER - HYDRAULIC (CANISTER) 46 PILOT ACTIVATED DIRECTIONAL
8 RELIEF/ANTICAVITATION VALVE - 66 PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE – HYDRAULIC
PORT: 27579 kPa (276 bar) (4000 psi) CONTROL VALVE - REAR AUXILIARY
27 SENSOR – CHARGE PRESSURE – POWERED BOB-TACH With Build-up
9 RELIEF/ANTICAVITATION VALVE - Fan Filter Valve: 276 kPa (2,76 bar) (40 psi) 67 RELIEF VALVE: 22753 kPa (228 bar) (3300 psi)
PORT (OPTIONAL): 27579 kPa 28 SENSOR – HYD. TEMPERATURE 47 FILTER - BOB-TACH VALVE 68 SOLENOID ACTIVATED DIRECTIONAL
(276 bar) (4000 psi) 29 RESTRICTION - 1,5 mm (0.06 in) 48 RESTRICTION - 1,17 mm (0.46 in) CONTROL VALVE - TWO COIL
10 SOLENOID ACTIVATED DIRECTIONAL 69 RESTRICTOR - 0,8 mm (0.031 in)
30 CHECK VALVE - With 1379 kPa 13,8 bar 49 SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - AUXILIARY
(200 psi) Spring CONTROL VALVE (TWO COIL)
11 LOAD CHECK VALVE 70 LOAD SHUTTLE VALVE - BLEED OFF
31 DRIVE MOTOR SHUTTLE VALVE 50 NOT USED FOR THIS MODEL
12 ANTICAVITATION VALVE 32 PILOT ACTIVATED DIRECTIONAL 71 SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE – 2 Speed Shift 51 NOT USED FOR THIS MODEL CONTROL VALVE - BASE
13 PILOTED ACTIVATED DIRECTIONAL FIXED CAPACITY DISPLACEMENT
33 52 NOT USED FOR THIS MODEL 72 SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - TILT CONTROL BIDIRECTIONAL HYDROSTATIC MOTOR CONTROL VALVE - ROD
14 PILOTED ACTIVATED DIRECTIONAL FIXED CAPACITY DISPLACEMENT
34 73 RIDE CONTROL VALVE
CONTROL VALVE - LIFT CONTROL BIDIRECTIONAL HYDROSTATIC MOTOR 53 RELIEF VALVE - 24132 kPa
15 SOLENOID ACTIVATED DIRECTIONAL HYDRAULIC BRAKE – SPRING APPLIED – (241 bar) (3500 psi)
35 74 HIGH PRESSURE CHAMBER
CONTROL VALVE - BICS CONTROL PRESSURE RELEASE (SAPR)
54 RESTRICTION - 0,254 mm (0.010 in) 75 LOW PRESSURE CHAMBER
16 FILTER - BICS CONTROL VALVE 36 SOLENOID ACTIVATED DIRECECTIONAL
(SCREEN) CONTROL VALVE – BRAKE 55 CHECK VALVE
17 CHECK VALVE - With 100 kPa (1,0 bar) 37 FILTER – BRAKE VALVE
56 NOT USED FOR THIS MODEL
(14.5 psi) Spring SOLENOID ACTIVATED DIRECTIONAL
38
18 RESTRICTION . . . . . . . 2,0 mm (0.079 in) CONTROL VALVE – 2 Speed Shift
NOTE: Unless otherwise specified springs have
NO significant pressure value.
Printed in U.S.A. V-1470legend (7-25-17)
 INTEGRATED COUPLER BLOCK

DRIVE MOTOR Male

L
45
30 29
31 Male
OUT
HYDRAULIC CONTROL VALVE 65
45
Female

9
RIDE CONTROL
75 (FIELD INSTALLED OPTION) 74
32

33 9
34 NOTE: CUSHIONED
REAR QUICK LIFT CYLINDERS ON
FEMALE COUPLERS MALE 10 LATER MODELS ONLY
35 10 LIFT CYLINDERS
Z
Auxiliary Spool
A B 70
73
72
21
71
68 6
HYDROSTATIC PUMP BOBCAT INTERLOCK CONTROL SYSTEM
8 11 (BICS)
R
41 TILT BASE

T
E1 E2 A1 A2

TILT ROD E3
69
X Tilt Spool

8 B 58
42 13
2-SPEED & X
SAPR BRAKE 67
VALVE 11
(OPTIONAL) LIFT ROD 57 60

66 14 D2
38
B A M REAR AUXILIARY P in P out T 12
36 M 59
D C VALVE (OPTION)
T LIFT BASE

M
Lift Spool
43 42
POWER BOBTACH CYLINDER 61 C2
(OPTIONAL) 8
C1 D1
P B A POWER BOBTACH
VALVE (OPTIONAL)
M 20 16
B1
M 55 53 11 15 BUCKET POSITIONING
37 VALVE (OPTIONAL)
IN
2 18
7 16
42 6
42 49
54 17

TILT CYLINDERS
1
D Oil Cooler
19
41 44 48
47 RESERVOIR
T 2 (VENTED)
5 1
R
40 46

39

VARIABLE SPEED HYDRAULIC 3 4

FAN MOTOR W/ INTEGRATED FILTER
HYDRAULIC FILTER
62
63 64

26 24
WORKING CIRCUIT
27
CHARGE
PRESSURE
22
35 DRAIN / RETURN
B A

25

Z P DR
23
33 34

32

28 HYDRAULIC/HYDROSTATIC SCHEMATIC
MANUAL WITH ALL OPTIONS
S650 (S/N ALJ813902 - ALJ819181)
30 29
(S/N B2LA11043 - B2LA11457)
31
L DRAIN / RETURN MANIFOLD (PRINTED MAY 2018)
DRIVE MOTOR

7170812 (G)

PRINTED IN U.S.A.
 (PRINTED JULY 2017)
V-1642legend
LEGEND
1 RESERVOIR: CHARGE PUMP -
19 PULL BUTTON ACTIVATED 39 57 SOLENOID ACTIVATED DIRECTIONAL
Capacity at sight gauge . . 10,2 L (2.7 U.S. gal) 51,1 L/min (13.5 U.S. gpm) at High Engine Idle CONTROL VALVE - BUCKET POSITION
DIRECTIONAL CONTROL VALVE - LIFT
System Capacity . . . . . . . 41,6 L (11.0 U.S. gal) ARM BY-PASS 40 HYDRAULIC PUMP . . . . . . . Gear Type VALVE (ON/OFF)
87,1 L/min (23.0 U.S. gpm) at High Engine Idle 58 FLOW DIVIDER ADJUSTMENT VALVE
2 SIGHT GUAGE 20 LIFT CYLINDER SPOOL - MADE TO
41 VARIABLE CAPACITY DISPLACEMENT
DIFFERENTIAL PRESSURE SWITCH: RESTRICT FLOW DURING BOOM 59 PILOTED ACTIVATED DIRECTIONAL CONTROL
3 BIDIRECTIONAL HYDROSTATIC PUMP
103 kPa (1,03 bar) (15 psi) DOWN BUT NOT DURING BOOM UP VALVE - FLOW CONTROL SPOOL
42 RELIEF/REPLENISHING VALVE - HIGH
Normally Closed 21 RELIEF VALVE - 24132 kPa (241 bar) 60 CHECK VALVE - BUCKET POSITION VALVE
PRESSURE: 36500 kPa (365 bar) (5294 psi)
4 FILTER - HYDRAULIC (CANISTER) (3500 psi) (If Equipped)
43 RELIEF VALVE - CHARGE INLET: 61 PILOTED ACTIVATED DIRECTIONAL
SPRING LOADED FILTER BY-PASS 22 ANTICAVITATION VALVE 3034 +/- 344 kPa (30,3 +/- 3 bar) CONTROL VALVE – UNLOADING SPOOL
5
VALVE: 172 kPa (1,7 bar) (25 psi) (440 +/- 50 psi) at High Engine Idle 62 HIGH FLOW HYDRAULIC PUMP Gear Type
23 PROPORTIONAL RELIEF VALVE –
6 DIAGNOSTIC COUPLER (Fan Speed Regulator): 10797 – 12300 kPa With 60 ° C (140 ° F) Fluid 28,4 L/min (7.5 U.S. gal) at High Engine Idle
(108 - 123 bar) (1566 - 1784 psi) 44 CHECK VALVE – COLD WEATHER 63
7 RELIEF VALVE - MAIN: RELIEF VALVE - 24132 kPa (241 bar) (3500 psi)
BY-PASS With 345 kPa (3,45 bar)
24132 kPa (241 bar) (3500 psi) 24 SPRING LOADED FILTER BY-PASS VALVE: (50 psi) Spring 64 DUMP VALVE – ON / OFF
at Front Quick Couplers 517 – 572 kPa (5,2 - 5,7 bar) (75 - 83 psi)
45 FRONT AUXILIARY MANUAL PRESSURE
NOTE - If Equipped With Ref. 21: 25 FIXED CAPACITY DISPLACEMENT 65 CHECK VALVE - With 34,5 kPa (0,34 bar)
HYDRAULIC MOTOR BLEED-OFF VALVE
25855 kPa (258 bar) (3750 psi) (5.0 psi) Spring
26 FILTER - HYDRAULIC (CANISTER) 46 PILOT ACTIVATED DIRECTIONAL
8 RELIEF/ANTICAVITATION VALVE - 66 PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE – HYDRAULIC
PORT: 27579 kPa (276 bar) (4000 psi) 27 SENSOR – CHARGE PRESSURE – CONTROL VALVE - REAR AUXILIARY
POWERED BOB-TACH With Build-up
9 RELIEF/ANTICAVITATION VALVE - Fan Filter Valve: 276 kPa (2,76 bar) (40 psi) 67 RELIEF VALVE: 22753 kPa (228 bar) (3300 psi)
PORT (OPTIONAL): 27579 kPa 28 SENSOR – HYD. TEMPERATURE 47 FILTER - BOB-TACH VALVE 68 SOLENOID ACTIVATED DIRECTIONAL
(276 bar) (4000 psi) 29 RESTRICTION - 1,5 mm (0.06 in) 48 RESTRICTION - 1,17 mm (0.46 in) CONTROL VALVE - TWO COIL
10 SOLENOID ACTIVATED DIRECTIONAL 69 RESTRICTOR - 0,8 mm (0.031 in)
30 CHECK VALVE - With 1379 kPa 13,8 bar 49 SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - AUXILIARY
(200 psi) Spring CONTROL VALVE (TWO COIL)
11 LOAD CHECK VALVE 70 LOAD SHUTTLE VALVE - BLEED OFF
31 DRIVE MOTOR SHUTTLE VALVE 50 SOLENOID ACTIVATED DIRECTIONAL
12 ANTICAVITATION VALVE 32 PILOT ACTIVATED DIRECTIONAL CONTROL VALVE – Ride Control Option 71 SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE – 2 Speed Shift 51 ACCUMULATOR – Ride Control Option CONTROL VALVE - BASE
13 PILOTED ACTIVATED DIRECTIONAL FIXED CAPACITY DISPLACEMENT
33 72 SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - TILT CONTROL BIDIRECTIONAL HYDROSTATIC MOTOR 52 ORIFICE WITH CHECK VALVE: CONTROL VALVE - ROD
14 PILOTED ACTIVATED DIRECTIONAL FIXED CAPACITY DISPLACEMENT 2,54 mm (0.10 in)
34 73 SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - LIFT CONTROL BIDIRECTIONAL HYDROSTATIC MOTOR 53 RELIEF VALVE - 24132 kPa CONTROL VALVE – Fan Reversing Option
15 SOLENOID ACTIVATED DIRECTIONAL 35 HYDRAULIC BRAKE – SPRING APPLIED – (241 bar) (3500 psi)
CONTROL VALVE - BICS CONTROL PRESSURE RELEASE (SAPR)
16 FILTER - BICS CONTROL VALVE 36 SOLENOID ACTIVATED DIRECECTIONAL 54 RESTRICTION - 0,254 mm (0.010 in)
(SCREEN) CONTROL VALVE – BRAKE
55 CHECK VALVE
17 CHECK VALVE - With 100 kPa (1,0 bar) 37 FILTER – BRAKE VALVE
(14.5 psi) Spring SOLENOID ACTIVATED DIRECTIONAL 56 ORIFICE: 1,60 mm (0.063 in)
38
18 RESTRICTION . . . . . . . 2,0 mm (0.079 in) CONTROL VALVE – 2 Speed Shift
NOTE: Unless otherwise specified springs have
NO significant pressure value.
Printed in U.S.A. V-1642legend (7-24-17)
 INTEGRATED COUPLER BLOCK

DRIVE MOTOR Male

L
45
30 29
31 OUT
Male

HYDRAULIC CONTROL VALVE 65

45
Female

X
51
RIDE CONTROL
9 (OPTION)
T2 ACC

T 52
32
56
33 9
34 REAR QUICK P NOTE: CUSHIONED
COUPLERS MALE 10 LIFT CYLINDERS ON
FEMALE
50 LATER MODELS ONLY
35 10 LIFT CYLINDERS
Z
Auxiliary Spool CR2 CR CB CB2

A B 70

72
21
71
68 6
HYDROSTATIC PUMP BOBCAT INTERLOCK CONTROL SYSTEM
8 11 (BICS)
41 R TI LT BASE

T
E1 E2 A1 A2

TI LT ROD E3
69
X Tilt Spool

8
B 58
42 13
2-SPEED & X
SAPR BRAKE 67
VALVE 11
(OPTIONAL) LI FT ROD 57 60

66 14 D2
38
B A M REAR AUXILIARY P in P out T 12
36 M 59
D C VALVE (OPTION)
T LI FT BASE

M
Lift Spool
43 42
POWER BOBTACH CYLINDER 61 C2
(OPTIONAL) 8
C1 D1
P B A POWER BOBTACH
VALVE (OPTIONAL)
M 20 16
B1
M 55 53 11 15 BUCKET POSITIONING
37 VALVE (OPTIONAL)
IN
2 18
7 16
42 6
42 49
54 17

TILT CYLINDERS
1
D Oil Cooler
19
41 44 48
47 RESERVOIR
T 2 (VENTED)
5 1
R
40 46

39

VARIABLE SPEED HYDRAULIC 3 4

FAN MOTOR W/ INTEGRATED FILTER
HYDRAULIC FILTER
62
63 64 26 24
27

WORKING CIRCUIT

CHARGE
PRESSURE
1 4 22
35 DRAIN / RETURN
B A
3 2

25
73
Z
34 DR 23 P
33

32

28
HYDRAULIC/HYDROSTATIC SCHEMATIC
MANUAL WITH ALL OPTIONS
S650 (S/N ALJ819182 AND ABOVE)
30 29 (S/N B2LA11458 AND ABOVE)
31
L DRAIN / RETURN MANIFOLD
(PRINTED MAY 2018)
DRIVE MOTOR

7170812 (K)

PRINTED IN U.S.A.
 HYDRAULIC/HYDROSTATIC SCHEMATIC
SJC WITH NO OPTIONS
S650 (S/N ALJ811001 AND ABOVE)
(S/N B2LA11001 AND ABOVE)
(PRINTED MARCH 2015)
V-1471legend
LEGEND
1 RESERVOIR: 39 CHARGE PUMP -
19 PULL BUTTON ACTIVATED
Capacity at sight gauge . . 10,2 L (2.7 U.S. gal) 51,1 L/min (13.5 U.S. gpm) at High Engine Idle
DIRECTIONAL CONTROL VALVE - LIFT
System Capacity . . . . . . . 41,6 L (11.0 U.S. gal) ARM BY-PASS 40 HYDRAULIC PUMP . . . . . . . Gear Type
87,1 L/min (23.0 U.S. gpm) at High Engine Idle
2 SIGHT GUAGE 20 LIFT CYLINDER SPOOL - MADE TO
41 VARIABLE CAPACITY DISPLACEMENT
DIFFERENTIAL PRESSURE SWITCH: RESTRICT FLOW DURING BOOM
3 DOWN BUT NOT DURING BOOM UP BIDIRECTIONAL HYDROSTATIC PUMP
103 kPa (1,03 bar) (15 psi) RELIEF/REPLENISHING VALVE - HIGH
Normally Closed 42
21 RELIEF VALVE - 24132 kPa (241 bar) PRESSURE: 36500 kPa (365 bar) (5294 psi)
4 FILTER - HYDRAULIC (CANISTER) (3500 psi) (If Equipped)
43 RELIEF VALVE - CHARGE INLET:
SPRING LOADED FILTER BY-PASS 22 ANTICAVITATION VALVE 3413 +/- 172 kPa (34,1 +/- 1,7 bar)
5
VALVE: 172 kPa (1,7 bar) (25 psi) (495 +/- 25 psi) at High Engine Idle
23 PROPORTIONAL RELIEF VALVE –
6 DIAGNOSTIC COUPLER (Fan Speed Regulator): 10797 – 12300 kPa With 60 ° C (140 ° F) Fluid
(108 - 123 bar) (1566 - 1784 psi) 44 CHECK VALVE – COLD WEATHER
7 RELIEF VALVE - MAIN: BY-PASS With 345 kPa (3,45 bar)
24132 kPa (241 bar) (3500 psi) 24 SPRING LOADED FILTER BY-PASS VALVE: (50 psi) Spring
at Front Quick Couplers 517 – 572 kPa (5,2 - 5,7 bar) (75 - 83 psi)
45 SERVO PISTON SWASH PLATE
NOTE - If Equipped With Ref. 21: 25 FIXED CAPACITY DISPLACEMENT
25855 kPa (258 bar) (3750 psi) HYDRAULIC MOTOR SOLENOID ACTIVATED DIRECTIONAL
46
RELIEF/ANTICAVITATION VALVE - 26 FILTER - HYDRAULIC (CANISTER) CONTROL VALVE – Forward / Reverse
8
PORT: 27579 kPa (276 bar) (4000 psi) 47 FILTER
27 SENSOR – CHARGE PRESSURE –
9 RELIEF/ANTICAVITATION VALVE - Fan Filter FRONT AUXILIARY MANUAL PRESSURE
48
PORT (OPTIONAL): 27579 kPa 28 SENSOR – HYD. TEMPERATURE BLEED-OFF VALVE
(276 bar) (4000 psi) 29 RESTRICTION - 1,5 mm (0.06 in)
10 SOLENOID ACTIVATED DIRECTIONAL
30 CHECK VALVE - With 1379 kPa 13,8 bar
CONTROL VALVE - AUXILIARY
(200 psi) Spring
11 LOAD CHECK VALVE 31 DRIVE MOTOR SHUTTLE VALVE
12 ANTICAVITATION VALVE 32 NOT USED FOR THIS MODEL
13 PILOTED ACTIVATED DIRECTIONAL
CONTROL VALVE - TILT CONTROL 33 NOT USED FOR THIS MODEL
14 PILOTED ACTIVATED DIRECTIONAL FIXED CAPACITY DISPLACEMENT
34
CONTROL VALVE - LIFT CONTROL BIDIRECTIONAL HYDROSTATIC MOTOR
15 SOLENOID ACTIVATED DIRECTIONAL 35 NOT USED FOR THIS MODEL
CONTROL VALVE - BICS CONTROL
16 FILTER - BICS CONTROL VALVE 36 NOT USED FOR THIS MODEL
(SCREEN)
17 CHECK VALVE - With 100 kPa (1,0 bar) 37 NOT USED FOR THIS MODEL
(14.5 psi) Spring
38 NOT USED FOR THIS MODEL
18 RESTRICTION . . . . . . . 2,0 mm (0.079 in) NOTE: Unless otherwise specified springs have
NO significant pressure value.
Printed in U.S.A. V-1471legend (3-31-15)
 INTEGRATED COUPLER BLOCK

Male

DRIVE MOTOR
48
30 Male
OUT

L HYDRAULIC CONTROL VALVE

31 48
29 Female

34
9

10
10
A B Auxiliary Spool

21

6
HYDROSTATIC PUMP 44 BOBCAT INTERLOCK CONTROL SYSTEM
8 11 (BICS)
R
41 TILT BASE

46 TILT ROD

X 47 Tilt Spool

8
45
42 13 TILT CYLINDERS
X

11
LIFT ROD

14
M 47 12
M
A B LIFT BASE

M
Lift Spool
43 42
8
G
LIFT CYLINDERS
A B
M
NOTE: CUSHIONED
20 16 LIFT CYLINDERS ON
M
47
11 LATER MODELS ONLY
15
IN
2 18
7 16
42 6
42
X 17

45
1
X 46 Oil Cooler
47 19
41
RESERVOIR
T 2 (VENTED)
5 1
R
40

39

VARIABLE SPEED HYDRAULIC 3 4

FAN MOTOR W/ INTEGRATED FILTER
HYDRAULIC FILTER

26 24
WORKING CIRCUIT
27
CHARGE
PRESSURE
22
DRAIN / RETURN

B A
25

P DR
23

34

28
HYDRAULIC/HYDROSTATIC SCHEMATIC
29
31 SJC WITH NO OPTIONS
L

30
S650 (S/N ALJ811001 AND ABOVE)
DRIVE MOTOR
DRAIN / RETURN MANIFOLD
(PRINTED MAY 2018)

7170813 (G)

PRINTED IN U.S.A.
 HYDRAULIC/HYDROSTATIC SCHEMATIC
SJC WITH ALL OPTIONS
S650 (S/N ALJ811001 – ALJG13901)
(S/N S1ML11001 AND ABOVE)
(S/N B2LA11001 – B2KZ11042)
(PRINTED MARCH 2015)
V-1471legend
LEGEND
1 RESERVOIR: 39 CHARGE PUMP - 58 SHUTTLE VALVE
19 PULL BUTTON ACTIVATED
Capacity at sight gauge . . 10,2 L (2.7 U.S. gal) 51,1 L/min (13.5 U.S. gpm) at High Engine Idle
DIRECTIONAL CONTROL VALVE - LIFT 59 RESTRICTION - 0,51 mm (0.020 in)
System Capacity . . . . . . . 41,6 L (11.0 U.S. gal) ARM BY-PASS 40 HYDRAULIC PUMP . . . . . . . Gear Type
87,1 L/min (23.0 U.S. gpm) at High Engine Idle 60 SOLENOID ACTIVATED DIRECTIONAL
2 SIGHT GUAGE 20 LIFT CYLINDER SPOOL - MADE TO
41 VARIABLE CAPACITY DISPLACEMENT CONTROL VALVE - BUCKET POSITION
DIFFERENTIAL PRESSURE SWITCH: RESTRICT FLOW DURING BOOM
3 BIDIRECTIONAL HYDROSTATIC PUMP VALVE (ON/OFF)
103 kPa (1,03 bar) (15 psi) DOWN BUT NOT DURING BOOM UP
42 RELIEF/REPLENISHING VALVE - HIGH 61 FLOW DIVIDER ADJUSTMENT VALVE
Normally Closed 21 RELIEF VALVE - 24132 kPa (241 bar) PRESSURE: 36500 kPa (365 bar) (5294 psi)
4 FILTER - HYDRAULIC (CANISTER) (3500 psi) (If Equipped) 62 PILOTED ACTIVATED DIRECTIONAL CONTROL
43 RELIEF VALVE - CHARGE INLET: VALVE - FLOW CONTROL SPOOL
SPRING LOADED FILTER BY-PASS 22 ANTICAVITATION VALVE 3413 +/- 172 kPa (34,1 +/- 1,7 bar)
5 63 CHECK VALVE - BUCKET POSITION VALVE
VALVE: 172 kPa (1,7 bar) (25 psi) (495 +/- 25 psi) at High Engine Idle
23 PROPORTIONAL RELIEF VALVE –
6 DIAGNOSTIC COUPLER (Fan Speed Regulator): 10797 – 12300 kPa With 60 ° C (140 ° F) Fluid 64 PILOTED ACTIVATED DIRECTIONAL
(108 - 123 bar) (1566 - 1784 psi) 44 CHECK VALVE – COLD WEATHER CONTROL VALVE – UNLOADING SPOOL
7 RELIEF VALVE - MAIN: BY-PASS With 345 kPa (3,45 bar) 65 HIGH FLOW HYDRAULIC PUMP Gear Type
24132 kPa (241 bar) (3500 psi) 24 SPRING LOADED FILTER BY-PASS VALVE: (50 psi) Spring
517 – 572 kPa (5,2 - 5,7 bar) (75 - 83 psi) 28,4 L/min (7.5 U.S. gal) at High Engine Idle
at Front Quick Couplers
45 SERVO PISTON SWASH PLATE 66
NOTE - If Equipped With Ref. 21: 25 FIXED CAPACITY DISPLACEMENT RELIEF VALVE - 24132 kPa (241 bar) (3500 psi)
25855 kPa (258 bar) (3750 psi) HYDRAULIC MOTOR SOLENOID ACTIVATED DIRECTIONAL
46 67 DUMP VALVE – ON / OFF
RELIEF/ANTICAVITATION VALVE - 26 FILTER - HYDRAULIC (CANISTER) CONTROL VALVE – Forward / Reverse
8
PORT: 27579 kPa (276 bar) (4000 psi) 47 FILTER 68 CHECK VALVE - With 34,5 kPa (0,34 bar)
27 SENSOR – CHARGE PRESSURE –
Fan Filter (5.0 psi) Spring
9 RELIEF/ANTICAVITATION VALVE - 48 FRONT AUXILIARY MANUAL PRESSURE
PORT (OPTIONAL): 27579 kPa 28 SENSOR – HYD. TEMPERATURE BLEED-OFF VALVE 69 PILOT ACTIVATED DIRECTIONAL
(276 bar) (4000 psi) 49 CONTROL VALVE - REAR AUXILIARY
29 RESTRICTION - 1,5 mm (0.06 in) PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE – HYDRAULIC 70 RELIEF VALVE: 22753 kPa (228 bar) (3300 psi)
10 SOLENOID ACTIVATED DIRECTIONAL
30 CHECK VALVE - With 1379 kPa 13,8 bar POWERED BOB-TACH With Build-up
CONTROL VALVE - AUXILIARY 71 SOLENOID ACTIVATED DIRECTIONAL
(200 psi) Spring Valve: 207 kPa (2,07 bar) (30 psi)
11 LOAD CHECK VALVE 31 DRIVE MOTOR SHUTTLE VALVE CONTROL VALVE - TWO COIL
50 FILTER - BOB-TACH VALVE
12 72 RESTRICTOR - 0,8 mm (0.031 in)
ANTICAVITATION VALVE 32 PILOT ACTIVATED DIRECTIONAL
51 RESTRICTION - 2,08 mm (0.08 in)
CONTROL VALVE – 2 Speed Shift 73 LOAD SHUTTLE VALVE - BLEED OFF
13 PILOTED ACTIVATED DIRECTIONAL FIXED CAPACITY DISPLACEMENT SOLENOID ACTIVATED DIRECTIONAL
33 52
CONTROL VALVE - TILT CONTROL BIDIRECTIONAL HYDROSTATIC MOTOR CONTROL VALVE (TWO COIL) 74 SOLENOID ACTIVATED DIRECTIONAL
14 PILOTED ACTIVATED DIRECTIONAL FIXED CAPACITY DISPLACEMENT 53 RELIEF VALVE - 8274 kPa (83 bar) (1200 psi) CONTROL VALVE - BASE
34
CONTROL VALVE - LIFT CONTROL BIDIRECTIONAL HYDROSTATIC MOTOR
CHECK VALVE - With 552 kPa) 75 SOLENOID ACTIVATED DIRECTIONAL
15 SOLENOID ACTIVATED DIRECTIONAL HYDRAULIC BRAKE – SPRING APPLIED – 54
35 CONTROL VALVE - ROD
CONTROL VALVE - BICS CONTROL PRESSURE RELEASE (SAPR) (5,5 bar) (80 psi) Spring
55 RELIEF VALVE - 13790 kPa 76 RIDE CONTROL VALVE
16 FILTER - BICS CONTROL VALVE 36 SOLENOID ACTIVATED DIRECECTIONAL
(137 bar) (2000 psi)
(SCREEN) CONTROL VALVE – BRAKE 77 HIGH PRESSURE CHAMBER
56 CHECK VALVE - With 2068 kPa (20,7 bar)
17 CHECK VALVE - With 100 kPa (1,0 bar) 37 FILTER – BRAKE VALVE (300 psi) Spring And With 78 LOW PRESSURE CHAMBER
(14.5 psi) Spring SOLENOID ACTIVATED DIRECTIONAL 0,40 mm (0.016 in) Orifice
38
18 RESTRICTION . . . . . . . 2,0 mm (0.079 in) CONTROL VALVE – 2 Speed Shift 57 RESTRICTION - 0,51 mm (0.020 in) NOTE: Unless otherwise specified springs have
NO significant pressure value.
Printed in U.S.A. V-1471legend (3-31-15)
 INTEGRATED COUPLER BLOCK

DRIVE MOTOR Male

L
48
30 29
31 Male
OUT
HYDRAULIC CONTROL VALVE 68
48
Female

9
RIDE CONTROL
78 (FIELD INSTALLED OPTION) 77
32

33 9
34 NOTE: CUSHIONED
REAR QUICK LIFT CYLINDERS ON
FEMALE COUPLERS MALE 10 LATER MODELS ONLY
35 10 LIFT CYLINDERS
Z
Auxiliary Spool
A B 73
76
75
21
74
71 6
HYDROSTATIC PUMP BOBCAT INTERLOCK CONTROL SYSTEM
8 11 (BICS)
R
41 TILT BASE

T
E1 E2 A1 A2

46 72
TILT ROD E3

X 47 Tilt Spool

8 B 61
45
42 13
2-SPEED & X
SAPR BRAKE 70
VALVE 11
(OPTIONAL) LIFT ROD 60 63

69 14 D2
38
B A M 47 REAR AUXILIARY P in P out T 12
36 M 62
A B
VALVE (OPTION)
T LIFT BASE

M
Lift Spool
43 42
64 C2
8
G
C1 D1
P A B
POWER BOBTACH
M VALVE (OPTIONAL) 20 16
B1
M
47
11 15 BUCKET POSITIONING
37 58
54 VALVE (OPTIONAL)
53 IN
2 18
56 7 16
42 6
42
X 17
55
45 TILT CYLINDERS
1
X 46 Oil Cooler
47 19
41 44 59
52 51 RESERVOIR
T D 57 2 (VENTED)
5 1
R
40
50
49
39

VARIABLE SPEED HYDRAULIC 3 4

FAN MOTOR W/ INTEGRATED FILTER
HYDRAULIC FILTER
65
66 67

26 24
WORKING CIRCUIT
27
CHARGE
PRESSURE
22
35 DRAIN / RETURN
B A

25

Z P DR
23
33 34

32

X HYDRAULIC/HYDROSTATIC SCHEMATIC
28 SJC WITH ALL OPTIONS
S650 (S/N ALJ811001 - AHGL13901)
(S/N S1ML11001 AND ABOVE)
30 29 (S/N B2LA11001 - B2LA11042)
31
L DRAIN / RETURN MANIFOLD
(PRINTED MAY 2018)
DRIVE MOTOR

7170813 (G)

PRINTED IN U.S.A.
 HYDRAULIC/HYDROSTATIC SCHEMATIC
SJC WITH ALL OPTIONS
S650 (S/N ALJ813902 - ALJ819181)
(S/N B2LA11043 - B2LA11457)
(PRINTED JULY 2017)
V-1471legend
LEGEND
1 RESERVOIR: 39 CHARGE PUMP - 58 CHECK VALVE
19 PULL BUTTON ACTIVATED
Capacity at sight gauge . . 10,2 L (2.7 U.S. gal) 51,1 L/min (13.5 U.S. gpm) at High Engine Idle
DIRECTIONAL CONTROL VALVE - LIFT 59 NOT USED FOR THIS MODEL
System Capacity . . . . . . . 41,6 L (11.0 U.S. gal) ARM BY-PASS 40 HYDRAULIC PUMP . . . . . . . Gear Type
87,1 L/min (23.0 U.S. gpm) at High Engine Idle 60 SOLENOID ACTIVATED DIRECTIONAL
2 SIGHT GUAGE 20 LIFT CYLINDER SPOOL - MADE TO
41 VARIABLE CAPACITY DISPLACEMENT CONTROL VALVE - BUCKET POSITION
DIFFERENTIAL PRESSURE SWITCH: RESTRICT FLOW DURING BOOM
3 BIDIRECTIONAL HYDROSTATIC PUMP VALVE (ON/OFF)
103 kPa (1,03 bar) (15 psi) DOWN BUT NOT DURING BOOM UP
42 RELIEF/REPLENISHING VALVE - HIGH 61 FLOW DIVIDER ADJUSTMENT VALVE
Normally Closed 21 RELIEF VALVE - 24132 kPa (241 bar) PRESSURE: 36500 kPa (365 bar) (5294 psi)
4 FILTER - HYDRAULIC (CANISTER) (3500 psi) (If Equipped) 62 PILOTED ACTIVATED DIRECTIONAL CONTROL
43 RELIEF VALVE - CHARGE INLET: VALVE - FLOW CONTROL SPOOL
SPRING LOADED FILTER BY-PASS 22 ANTICAVITATION VALVE 3413 +/- 172 kPa (34,1 +/- 1,7 bar)
5 63 CHECK VALVE - BUCKET POSITION VALVE
VALVE: 172 kPa (1,7 bar) (25 psi) (495 +/- 25 psi) at High Engine Idle
23 PROPORTIONAL RELIEF VALVE –
6 DIAGNOSTIC COUPLER (Fan Speed Regulator): 10797 – 12300 kPa With 60 ° C (140 ° F) Fluid 64 PILOTED ACTIVATED DIRECTIONAL
(108 - 123 bar) (1566 - 1784 psi) 44 CHECK VALVE – COLD WEATHER CONTROL VALVE – UNLOADING SPOOL
7 RELIEF VALVE - MAIN: BY-PASS With 345 kPa (3,45 bar) 65 HIGH FLOW HYDRAULIC PUMP Gear Type
24132 kPa (241 bar) (3500 psi) 24 SPRING LOADED FILTER BY-PASS VALVE: (50 psi) Spring
517 – 572 kPa (5,2 - 5,7 bar) (75 - 83 psi) 28,4 L/min (7.5 U.S. gal) at High Engine Idle
at Front Quick Couplers
45 SERVO PISTON SWASH PLATE 66
NOTE - If Equipped With Ref. 21: 25 FIXED CAPACITY DISPLACEMENT RELIEF VALVE - 24132 kPa (241 bar) (3500 psi)
25855 kPa (258 bar) (3750 psi) HYDRAULIC MOTOR SOLENOID ACTIVATED DIRECTIONAL
46 67 DUMP VALVE – ON / OFF
RELIEF/ANTICAVITATION VALVE - 26 FILTER - HYDRAULIC (CANISTER) CONTROL VALVE – Forward / Reverse
8
PORT: 27579 kPa (276 bar) (4000 psi) 47 FILTER 68 CHECK VALVE - With 34,5 kPa (0,34 bar)
27 SENSOR – CHARGE PRESSURE –
Fan Filter (5.0 psi) Spring
9 RELIEF/ANTICAVITATION VALVE - 48 FRONT AUXILIARY MANUAL PRESSURE
PORT (OPTIONAL): 27579 kPa 28 SENSOR – HYD. TEMPERATURE BLEED-OFF VALVE 69 PILOT ACTIVATED DIRECTIONAL
(276 bar) (4000 psi) 49 CONTROL VALVE - REAR AUXILIARY
29 RESTRICTION - 1,5 mm (0.06 in) PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE – HYDRAULIC 70 RELIEF VALVE: 22753 kPa (228 bar) (3300 psi)
10 SOLENOID ACTIVATED DIRECTIONAL
30 CHECK VALVE - With 1379 kPa 13,8 bar POWERED BOB-TACH With Build-up
CONTROL VALVE - AUXILIARY 71 SOLENOID ACTIVATED DIRECTIONAL
(200 psi) Spring Valve: 276 kPa (2,76 bar) (40 psi)
11 LOAD CHECK VALVE 31 DRIVE MOTOR SHUTTLE VALVE CONTROL VALVE - TWO COIL
50 FILTER - BOB-TACH VALVE
12 72 RESTRICTOR - 0,8 mm (0.031 in)
ANTICAVITATION VALVE 32 PILOT ACTIVATED DIRECTIONAL
51 RESTRICTION - 1,17 mm (0.46 in)
CONTROL VALVE – 2 Speed Shift 73 LOAD SHUTTLE VALVE - BLEED OFF
13 PILOTED ACTIVATED DIRECTIONAL FIXED CAPACITY DISPLACEMENT SOLENOID ACTIVATED DIRECTIONAL
33 52
CONTROL VALVE - TILT CONTROL BIDIRECTIONAL HYDROSTATIC MOTOR CONTROL VALVE (TWO COIL) 74 SOLENOID ACTIVATED DIRECTIONAL
14 PILOTED ACTIVATED DIRECTIONAL FIXED CAPACITY DISPLACEMENT 53 NOT USED FOR THIS MODEL CONTROL VALVE - BASE
34
CONTROL VALVE - LIFT CONTROL BIDIRECTIONAL HYDROSTATIC MOTOR 75 SOLENOID ACTIVATED DIRECTIONAL
15 SOLENOID ACTIVATED DIRECTIONAL HYDRAULIC BRAKE – SPRING APPLIED – 54 NOT USED FOR THIS MODEL
35 CONTROL VALVE - ROD
CONTROL VALVE - BICS CONTROL PRESSURE RELEASE (SAPR)
55 NOT USED FOR THIS MODEL 76 RIDE CONTROL VALVE
16 FILTER - BICS CONTROL VALVE 36 SOLENOID ACTIVATED DIRECECTIONAL
(SCREEN) CONTROL VALVE – BRAKE 77 HIGH PRESSURE CHAMBER
56 RELIEF VALVE - 24132 kPa
17 CHECK VALVE - With 100 kPa (1,0 bar) 37 FILTER – BRAKE VALVE
(241 bar) (3500 psi) 78 LOW PRESSURE CHAMBER
(14.5 psi) Spring SOLENOID ACTIVATED DIRECTIONAL
38
18 RESTRICTION . . . . . . . 2,0 mm (0.079 in) CONTROL VALVE – 2 Speed Shift 57 RESTRICTION - 0,254 mm (0.010 in) NOTE: Unless otherwise specified springs have
NO significant pressure value.
Printed in U.S.A. V-1471legend (7-25-17)
 INTEGRATED COUPLER BLOCK

DRIVE MOTOR Male

L
48
30 29
31 Male
OUT
HYDRAULIC CONTROL VALVE 68
48
Female

9
RIDE CONTROL
78 (FIELD INSTALLED OPTION) 77
32

33 9
34 NOTE: CUSHIONED
REAR QUICK LIFT CYLINDERS ON
FEMALE COUPLERS MALE 10 LATER MODELS ONLY
35 10 LIFT CYLINDERS
Z
Auxiliary Spool
A B 73
76
75
21
74
71 6
HYDROSTATIC PUMP BOBCAT INTERLOCK CONTROL SYSTEM
8 11 (BICS)
R
41 TILT BASE

T
E1 E2 A1 A2

46 72
TILT ROD E3

X 47 Tilt Spool

8 B 61
45
42 13
2-SPEED & X
SAPR BRAKE 70
VALVE 11
(OPTIONAL) LIFT ROD 60 63

69 14 D2
38
B A M 47 REAR AUXILIARY P in P out T 12
36 M 62
A B
VALVE (OPTION)
T LIFT BASE

M
Lift Spool
43 42
POWER BOBTACH CYLINDER 64 C2
(OPTIONAL) 8
G
C1 D1
P POWER BOBTACH
A B
VALVE (OPTIONAL)
M 20 16
B1
M
47 56
58 11 15 BUCKET POSITIONING
37 VALVE (OPTIONAL)
IN
2 18
7 16
42 6
42 52
X 57 17

45 TILT CYLINDERS
1
X 46 D Oil Cooler
47 19
41 44 51
50 RESERVOIR
T 2 (VENTED)
5 1
R
40 49

39

VARIABLE SPEED HYDRAULIC 3 4

FAN MOTOR W/ INTEGRATED FILTER
HYDRAULIC FILTER
65
66 67

26 24
WORKING CIRCUIT
27
CHARGE
PRESSURE
22
35 DRAIN / RETURN
B A

25

Z P DR
23
33 34

32

28
HYDRAULIC/HYDROSTATIC SCHEMATIC
SJC WITH ALL OPTIONS
S650 (S/N ALJ813902 - ALJ819181)
30 29 (S/N B2LA11043 - B2LA11457)
31
L DRAIN / RETURN MANIFOLD
(PRINTED MAY 2018)
DRIVE MOTOR

7170813 (G)

PRINTED IN U.S.A.
 (PRINTED JULY 2017)
V-1643legend
LEGEND
1 RESERVOIR: 39 CHARGE PUMP - 58 CHECK VALVE
19 PULL BUTTON ACTIVATED
Capacity at sight gauge . . 10,2 L (2.7 U.S. gal) 51,1 L/min (13.5 U.S. gpm) at High Engine Idle
DIRECTIONAL CONTROL VALVE - LIFT 59 ORIFICE: 1,6 mm (0.063 in)
System Capacity . . . . . . . 41,6 L (11.0 U.S. gal) ARM BY-PASS 40 HYDRAULIC PUMP . . . . . . . Gear Type
87,1 L/min (23.0 U.S. gpm) at High Engine Idle 60 SOLENOID ACTIVATED DIRECTIONAL
2 SIGHT GUAGE 20 LIFT CYLINDER SPOOL - MADE TO
41 VARIABLE CAPACITY DISPLACEMENT CONTROL VALVE - BUCKET POSITION
DIFFERENTIAL PRESSURE SWITCH: RESTRICT FLOW DURING BOOM
3 BIDIRECTIONAL HYDROSTATIC PUMP VALVE (ON/OFF)
103 kPa (1,03 bar) (15 psi) DOWN BUT NOT DURING BOOM UP
42 RELIEF/REPLENISHING VALVE - HIGH 61 FLOW DIVIDER ADJUSTMENT VALVE
Normally Closed 21 RELIEF VALVE - 24132 kPa (241 bar) PRESSURE: 36500 kPa (365 bar) (5294 psi)
4 FILTER - HYDRAULIC (CANISTER) (3500 psi) (If Equipped) 62 PILOTED ACTIVATED DIRECTIONAL CONTROL
43 RELIEF VALVE - CHARGE INLET: VALVE - FLOW CONTROL SPOOL
SPRING LOADED FILTER BY-PASS 22 ANTICAVITATION VALVE 3413 +/- 172 kPa (34,1 +/- 1,7 bar)
5 63 CHECK VALVE - BUCKET POSITION VALVE
VALVE: 172 kPa (1,7 bar) (25 psi) (495 +/- 25 psi) at High Engine Idle
23 PROPORTIONAL RELIEF VALVE –
6 DIAGNOSTIC COUPLER (Fan Speed Regulator): 10797 – 12300 kPa With 60 ° C (140 ° F) Fluid 64 PILOTED ACTIVATED DIRECTIONAL
(108 - 123 bar) (1566 - 1784 psi) 44 CHECK VALVE – COLD WEATHER CONTROL VALVE – UNLOADING SPOOL
7 RELIEF VALVE - MAIN: BY-PASS With 345 kPa (3,45 bar) 65 HIGH FLOW HYDRAULIC PUMP Gear Type
24132 kPa (241 bar) (3500 psi) 24 SPRING LOADED FILTER BY-PASS VALVE: (50 psi) Spring
517 – 572 kPa (5,2 - 5,7 bar) (75 - 83 psi) 28,4 L/min (7.5 U.S. gal) at High Engine Idle
at Front Quick Couplers
45 SERVO PISTON SWASH PLATE 66
NOTE - If Equipped With Ref. 21: 25 FIXED CAPACITY DISPLACEMENT RELIEF VALVE - 24132 kPa (241 bar) (3500 psi)
25855 kPa (258 bar) (3750 psi) HYDRAULIC MOTOR SOLENOID ACTIVATED DIRECTIONAL
46 67 DUMP VALVE – ON / OFF
RELIEF/ANTICAVITATION VALVE - 26 FILTER - HYDRAULIC (CANISTER) CONTROL VALVE – Forward / Reverse
8
PORT: 27579 kPa (276 bar) (4000 psi) 47 FILTER 68 CHECK VALVE - With 34,5 kPa (0,34 bar)
27 SENSOR – CHARGE PRESSURE –
Fan Filter (5.0 psi) Spring
9 RELIEF/ANTICAVITATION VALVE - 48 FRONT AUXILIARY MANUAL PRESSURE
PORT (OPTIONAL): 27579 kPa 28 SENSOR – HYD. TEMPERATURE BLEED-OFF VALVE 69 PILOT ACTIVATED DIRECTIONAL
(276 bar) (4000 psi) 49 CONTROL VALVE - REAR AUXILIARY
29 RESTRICTION - 1,7 mm (0.067 in) PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE – HYDRAULIC 70 RELIEF VALVE: 22753 kPa (228 bar) (3300 psi)
10 SOLENOID ACTIVATED DIRECTIONAL
30 CHECK VALVE - With 1379 kPa 13,8 bar POWERED BOB-TACH With Build-up
CONTROL VALVE - AUXILIARY 71 SOLENOID ACTIVATED DIRECTIONAL
(200 psi) Spring Valve: 276 kPa (2,76 bar) (40 psi)
11 LOAD CHECK VALVE 31 DRIVE MOTOR SHUTTLE VALVE CONTROL VALVE - TWO COIL
50 FILTER - BOB-TACH VALVE
12 72 RESTRICTOR - 0,8 mm (0.031 in)
ANTICAVITATION VALVE 32 PILOT ACTIVATED DIRECTIONAL
51 RESTRICTION - 1,17 mm (0.46 in)
CONTROL VALVE – 2 Speed Shift 73 LOAD SHUTTLE VALVE - BLEED OFF
13 PILOTED ACTIVATED DIRECTIONAL FIXED CAPACITY DISPLACEMENT SOLENOID ACTIVATED DIRECTIONAL
33 52
CONTROL VALVE - TILT CONTROL BIDIRECTIONAL HYDROSTATIC MOTOR CONTROL VALVE (TWO COIL) 74 SOLENOID ACTIVATED DIRECTIONAL
14 PILOTED ACTIVATED DIRECTIONAL FIXED CAPACITY DISPLACEMENT 53 SOLENOID ACTIVATED DIRECTIONAL CONTROL VALVE - BASE
34
CONTROL VALVE - LIFT CONTROL BIDIRECTIONAL HYDROSTATIC MOTOR CONTROL VALVE – Ride Control Option 75 SOLENOID ACTIVATED DIRECTIONAL
15 SOLENOID ACTIVATED DIRECTIONAL 35 HYDRAULIC BRAKE – SPRING APPLIED – 54 ACCUMULATOR – Ride Control Option CONTROL VALVE - ROD
CONTROL VALVE - BICS CONTROL PRESSURE RELEASE (SAPR)
55 ORIFICE With Check Valve: 76 SOLENOID ACTIVATED DIRECTIONAL
16 FILTER - BICS CONTROL VALVE 36 SOLENOID ACTIVATED DIRECECTIONAL
2,54 mm (0.10 in) CONTROL VALVE – Reversing Fan Option
(SCREEN) CONTROL VALVE – BRAKE
17 CHECK VALVE - With 100 kPa (1,0 bar) 37 FILTER – BRAKE VALVE 56 RELIEF VALVE - 24132 kPa
(14.5 psi) Spring SOLENOID ACTIVATED DIRECTIONAL (241 bar) (3500 psi)
38 NOTE: Unless otherwise specified springs have
18 RESTRICTION . . . . . . . 2,0 mm (0.079 in) CONTROL VALVE – 2 Speed Shift 57 RESTRICTION - 0,254 mm (0.010 in) NO significant pressure value.

Printed in U.S.A. V-1643legend (7-25-17)

 INTEGRATED COUPLER BLOCK

DRIVE MOTOR Male

L
48
30 29
31 Male
OUT
HYDRAULIC CONTROL VALVE 68
48
Female

X
RIDE CONTROL (OPTION)
54
9
T2 ACC

32
T 55

9 59
33 NOTE: CUSHIONED
34 REAR QUICK LIFT CYLINDERS ON
FEMALE COUPLERS MALE 10 P
LATER MODELS ONLY
35 10 LIFT CYLINDERS
Z
53
Auxiliary Spool
A B 73 CR2 CR CB CB2

75
21
74
71 6
HYDROSTATIC PUMP BOBCAT INTERLOCK CONTROL SYSTEM
8 11 (BICS)
R
41 TILT BASE

T
E1 E2 A1 A2

46 72
TILT ROD E3

X 47 Tilt Spool
8
B 61
45
42 13
2-SPEED & X
SAPR BRAKE 70
VALVE 11
(OPTIONAL) LIFT ROD 60 63

69 14 D2
38
B A M 47 REAR AUXILIARY P in P out T 12
36 M 62
A B
VALVE (OPTION)
T LIFT BASE

M
Lift Spool
43 42
POWER BOBTACH CYLINDER 64 C2
(OPTIONAL) 8
G
C1 D1
P POWER BOBTACH
A B
VALVE (OPTIONAL)
M 20 16
B1
M
47 56
58 11 15 BUCKET POSITIONING
37 VALVE (OPTIONAL)
IN
2 18
7 16
42 6
42 52
X 57 17

45 TILT CYLINDERS
1
X 46 D Oil Cooler
47 19
41 44 51
50 RESERVOIR
T 2 (VENTED)
5 1
R
40 49

39
VARIABLE SPEED
HYDRAULIC FAN MOTOR 3 4
W/ INTEGRATED FILTER
HYDRAULIC FILTER
65
66 27
67
26
24
WORKING CIRCUIT

CHARGE
PRESSURE
1 4 22
35 DRAIN / RETURN
B A
3 2

25
76
Z DR 23 P
33 34

32

28
HYDRAULIC/HYDROSTATIC SCHEMATIC
SJC WITH ALL OPTIONS
S650 (S/N ALJ819182 AND ABOVE)
(S/N B2LA11458 AND ABOVE)
30 29
31
L DRAIN / RETURN MANIFOLD
(PRINTED MAY 2018)
DRIVE MOTOR
7170813 K)

PRINTED IN U.S.A.