Skyjack SJ85 AJ Service Manual

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77
SJ85 AJ
229044ADA
3.22 Hydraulic Schematic
3.22 Hydraulic Schematic
M198217AJ
P1
DRIVE PUMP
(40.6 CC/ 2.48 CIR)
(28.7 GPM @ 2675 RPM)
C1
D1 SMa
Mb
P1A
CHARGE
PUMP
(13.8 CC/
0.84 CIR)
RV6
5000 PSI
a b
RV5
5000 PSI
A
BD2
C2
RV7
3 13 PSI
V6
BYPASS
VALVE
L L1
X
S
P
PUMP DISPL
CONTROL
4H-15 = REVERSE
4H-16 = FORWARD
T3
PORT #9
MOTOR DRAIN
PORT #6
2-SPD
PORT #8
DRIVE REVERSE
PORT #7
DRIVE FORWARD
PORT #3
AXLE PRESS.
PORT #2
AXLE LOCK
PORT #4
BRAKE
PORT #5
STEER LEFT
PORT #1
STEER RIGHT
SAE 06
SAE 06
SAE 06
SAE 04
SAE 06
SAE 04
SAE 12
SAE 12
SAE 10
SAE
06
SAE 06
SAE 06
SAE 06
SAE 06
SAE 06
SAE 12
SAE 12
SAE 10
B
A
S1
D2
OUT
GEN
OPTION - 3500 WATT, 110V GENERATOR
OPTION - 12000 WATT GENERATOR (WELDER OPTION)
IN
BULKHEAD LOCATIONS
#1 - TOP OF FLYBOOM - AT TIP
SAE08
OUT
GEN
IN
LS
SAE12
SAE08
3B
3B
1A2A1B2B
4A
BULKHEAD #3
BULKHEAD #2
RV8
RELIEF VALVE
3400 PSI
C1
MAIN BOOM LIFT
C2
BOOM EXTENSION
C3
PLATFORM LEVELING
MASTER CYLINDER
C4
PLATFORM LEVELING
SLAVE CYLINDER
C5
JIB LIFT
RA1
PLATFORM
ROTATE(JIB)
MB3 JIB LIFT & PLATFORM ROTATE
MANIFOLD
CB6
3000 PSI
3:1
CB7
3000 PSI
3:1
CB8
3000 PSI
1.5:1
CB9
3000 PSI
1.5:1
CB10
3300 PSI
3:1
CB11
3300 PSI
3:1
CB4
3000 PSI
3:1
CB5
3000 PSI
3:1
CB1
800 PSI
CB2
800 PSI
12VDC
MOTOR
CV14
F1
PRESSURE FILTER
P3
P1
P2
MB5
GENERATOR
CONTROL
VALVE
2H-85
8 GPM
T4 T6
T5
T7
T7
MB1 MAIN MANIFOLD
RA2
BOOM ROTATE SWING
DRIVE
WITH GENERATOR
SAE 06
SAE 06
SAE 10
SAE 10
SAE
10
SAE 10
SAE
06
SAE 06
SAE
06
SAE 06 SAE 04 SAE 04
SAE 04 SAE 04
SAE 04
SAE 16
SAE 24
SAE 16
SAE 10 SAE 16 SAE
12
SAE 04
SAE 04
SAE
04
SAE 06
SAE
08
SAE 06
SAE 10
SAE 08
P2
SYSTEM PUMP
(49 CC/ 3.00 CIR)
(34.74 GPM @ 2675 RPM)
3H-V1
PRESSURE
COMPENSATOR
2950 PSI
3H-V2
LOAD SENSE
COMPENSATOR
290 PSI
4H-35
JIB UP
4H-34
JIB DOWN
4H-37
RIGHT
4H-36
LEFT
F2
RETURN FILTER
EPU
EMERGENCY
POWER UNIT
3.02 CC/REV
M1-B
DRIVE MOTOR
(14.7 CC/0.90 CIR)
(40.6 CC/2.48 CIR)
CB13
4800 PSI
12:1
C6/C7
AXLE LOCK-OUT
CYLINDERS
CB12
4800 PSI
12:1
C9
FRONT AXLE SAHR
BRAKE CYLINDER
C8 (4WD)
FRONT AXLE
STEERING CYLINDER
OC1
OIL COOLER
M2 (100cc)
SV5
BR1
OR10
CV22
M4
M3
C10
REAR AXLE SAHR
BRAKE CYLINDER
A
B
S1
D2
M1-A
DRIVE MOTOR
(14.7 CC/0.90 CIR)
(40.6 CC/2.48 CIR)
T2 T1
T8
SAE 16
POWER TRACK CARRIER ASSEMBLY
SAE06 SAE06
SAE06 SAE06
SAE06 SAE06
SAE06 SAE06
PORT #10
DIFF LOCK
SAE 04SAE 06
C11: REAR AXLE
DIFF. LOCK CYLINDER
2-SPD
M2
SAE 06
SAE 06
SAE 16
SAE 06
SAE 16
SAE 06
MB2 BRAKE MANIFOLD
198104 BRAKE
VALVE ASSY
LS
AL
BRG
BR
T
M1
D
2SPD
3H-165
DIFF LOCK
VALVE
3H-65
AXLE
LOCKOUT
VALVE
3H-45A
2 SPEED
VALVE
3H-26
BRAKE
VALVE
V3
BRAKE
HAND
PUMP
PR1
PRESS.
REDUCING
VALVE
420PSI
CV13
SV2
SV1
V1
BRAKE
RELEASE
OVERRIDE
CB3
4000 PSI
1.5:1
CB14
2200 PSI
3:1
RIGHT
5H-23A
5H-24A
LEFT
5H-33
RIGHT
5H-32
LEFT
UP
4H-14
4H-13
DOWN
4H-38
IN
4H-39
OUT
5H-41
UP
5H-40
DOWN
2H-21A
VALVE
DUMP
BORE-3.93
ROD-2.75
STROKE-12.63
BORE-3.93
ROD-2.95
STROKE-255
BORE-7.48
ROD-3.93
STROKE-84.06
BORE-3.93
ROD-2.75
STROKE-12.63
BORE-2.75
ROD-1.50
STROKE-29.44
DISPL-243CC
BORE-3.06
ROD-
STROKE-4.31
BORE-4.50
ROD-4.50
STROKE-2.18
BORE-4.50
ROD-4.50
STROKE-2.18
E
OR9
V8
LOOP FLUSH
VALVE
G1
0-800 PSI
GAUGE
RA3
PLATFORM ROTATE(NO
JIB)
2H-85
MB6
GENERATOR
CONTROL
VALVE
CV21 CV20
OR11
CV19
T4
SAE 06
CV23
SAE06
SAE06
DSV4
SAE08
SAE08
3100
PSI
RV4
SAE 06
SAE 06
198103 MAIN
VALVE ASSY
SAE 16
SAE 04
ENABLE
VALVE
FLOW
PLATFORM
LEVEL
ROTATE
ROTATE
STEER
STEER
T7
T5
T6
T3
T4
T2
T1
VIEW OF HYDRAULIC TANK PORT PHYSICAL LOCATIONS
T8
SAE 04
SAE
04
SAE 06
SAE 06
SAE 04
SAE 04
60 PSI
(AUSTRALIA ONLY)
OPTION - 7500 WATT GENERATOR, 240 VOLT
P2
MB7
SAE 10
SAE 04
SAE 06
T7
P1
2H-85
CV24
CV25
OR12
M5
SAE 10
SAE
10
2H-42C
4H-31
UP
RISER
4H-30
RISER
DOWN
C12
RISER
C13
RISER
CB16
3500 PSI
1.5:1
CB15
3500 PSI
1.5:1
X
X
SAE 6SAE 8SAE 8 SAE 16 SAE 16
SAE 16SAE 8SAE 8SAE 6
TO OC1
0.028"
OR3
OR4
OR5
OR6
CV15
CV6
CV5
CV14
FR1
DSV2
V5 V2
0.020
CV13
DSV3
V6
V4
CV10
CV4
CV3
OR1
0.090
RV1
CV1
CV2
0.0200.020 0.020
DSV1
CV11
RV2
1750 PSI
3200 PSI
RV6
2000 PSI
RV3
3000 PSI
0.028"0.028"
E
R
E
S1
S2
S1
S2
CV12
SV3
OR2
CV8
CV9
CV7
RV5
2500 PSI
CV16
FR1
SV4
CV17
PR2
80 PSI
CV18
TO LS
CV26
M
n 0.073"
n
n
nn n
P
PT
PLBPLA
LS2
GLS
BLS
EBEA LBLA SBSA
LS1
P1
P2
RBRA
LP
M
P
T
GP1
RSB
RSA
T
LBP
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Skyjack SJ85 AJ Specifications

General

Brand	Skyjack
Model	SJ85 AJ
Category	Boom Lifts
Language	English