Skyjack SJ61T Service Manual

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EDCBA
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Telescopic Boom Series
Models SJ61T & SJ66T
194312
Page 81
3.33 Hydraulic Schematic Diagram
M168062AB
P1
DRIVE PUMP
(40.6 CC/ 2.48 CIR)
(27.9 GPM @ 2600 RPM)
DIESEL OR
DUAL FUEL
ENGINE
V6
BYPASS
VALVE
RV8
3 1 3 PSI
C2
D2 A
B
RV6
5000 PSI
ba
RV7
5000 PSI
P1A
CHARGE
PUMP
(13.8 CC/
0.84 CIR)
Mb
Ma SD1
C1
L L1
X
S
P
PUMP DISPL
CONTROL
4H-15 = REVERSE
4H-16 = FORWARD
SAE06
SAE06
SAE04
T4
BULKHEAD #1
POWER TRACK CARRIER ASSEMBLY
SAE06 SAE06 SAE06 SAE06
SAE06 SAE06
SAE06 SAE06
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 04
SAE
04
SAE
06
SAE
04
SAE
06
SAE
06
SAE
12
SAE
12
SAE
08
SAE
06
SAE
06
SAE
06
SAE
06
SAE
06
SAE
06
SAE
12
SAE
12
SAE
10
B
A
S1
D2
SAE06 SAE06
OPTION - CE
BULKHEAD LOCATIONS
#1 - SIDE OF MAIN BOOM.
#3 - TOP OF FLYBOOM - AT TIP
#2 - ON NO-JIB MOUNTING BRACKET
SAE12
NOTE A
4A
2B 1B 2A 1A
3B
3A
BULKHEAD #3
BULKHEAD #2
1
2 4
3
RV9
RELIEF VALVE
2500 PSI
C1
MAIN BOOM LIFT
C2
FLY BOOM EXTENSION
C3
PLATFORM LEVELING
MASTER CYLINDER
C4
PLATFORM LEVELING
SLAVE CYLINDER
C5
JIB LIFT
RA1
PLATFORM ROTATE
MB3 JIB LIFT & PLATFORM ROTATE
MANIFOLD
45T ONLY
MB4 PLATFORM ROTATE MANIFOLD
40T ONLY
CB6
3000 PSI
3:1
CB7
3000 PSI
3:1
CB8
3500 PSI
1.5:1
CB9
3500 PSI
1.5:1
CB10
3300 PSI
3:1
CB11
3300 PSI
3:1
CB4
3000 PSI
3:1
CB5
3000 PSI
3:1
CB3
4000 PSI
3:1
CB1
1000 PSI
CB2
1000 PSI
12VDC
MOTOR
CV14
F1
PRESSURE FILTER
T3
T5 T10
T6
T9
MB1 MAIN MANIFOLD
MB2 BRAKE MANIFOLD
RA2
BOOM ROTATE SWING
DRIVE
SAE04
SAE 06
SAE
06
SAE
06
SAE
06
SAE
08
SAE
08
SAE
06
SAE
06
SAE
06
SAE
06
SAE
04
SAE
04
SAE
04
SAE
04
SAE 04
SAE
12
SAE
20
SAE 12
SAE
10
SAE
16
SAE
12
SAE 04
SAE 04
SAE 04
SAE
08
SAE 04
SAE
04
SAE
08
P2
SYSTEM PUMP
(28 CC/ 1.71 CIR)
(19.2 GPM @ 2600 RPM)
3H-V1
PRESSURE
COMPENSATOR
3050 PSI
3H-V2
LOAD SENSE
COMPENSATOR
330 PSI
4H-35
JIB UP
4H-34
JIB DOWN
4H-37
RIGHT
4H-36
LEFT
4H-36
LEFT
4H-37
RIGHT
F2
RETURN FILTER
EPU
EMERGENCY
POWER UNIT
M1-B
DRIVE MOTOR
(13.5 CC/0.82 CIR)
(40.6 CC/2.48 CIR)
CB13
5000 PSI
10:1
C6/C7
AXLE LOCK-OUT
CYLINDERS
CB12
5000 PSI
10:1
C9
FRONT AXLE SAHR
BRAKE CYLINDER
C8 (4WD)
FRONT AXLE
STEERING CYLINDER
OC1
OIL COOLER
QD1
M2
SV4
BR1
C10
REAR AXLE SAHR
BRAKE CYLINDER
A
B
S1
D2
M1-A
DRIVE MOTOR
(13.5 CC/0.82 CIR)
(40.6 CC/2.48 CIR)
T9
T10
T7
T8
T5
T6
T3
T4
T2
T11
T1
VIEW OF HYDRAULIC TANK PORT PHYSICAL LOCATIONS
T2 T1
T11
SAE 12
OPTION - 3500 WATT, 220V GENERATOR
OPTION - 12000 WATT GENERATOR (WELDER OPTION)
T9
SAE 08
SAE 06
SAE
08
P3
P2
P3
P2
P1
P5
CV16
CV17
2H-85
M4
T9
SAE 04SAE 10
SAE 10
SAE 04
M3
2H-85
CV15
P1
SAE 06
SAE
08
OR7
OPTION - 3500 WATT, 110V GENERATOR
MB5 JIB CYLINDER
66T ONLY
SAE 04
CV18
PR2
PRESSURE
REDUCING
VALVE
300 PSI
MB6
MB8
MB7
RV1
3250
PSI
RV2
1250
PSI
CV12
CV1
CV2
OR1
CV3
DSV1
CV4
4H-23A
RIGHT
4H-24A
LEFT
DCV1
SV1
4H-32
LEFT
4H-33
RIGHT
4H-14
UP
4H-13
DOWN
3H-38
IN
3H-39
OUT
RV4
1500
PSI
RV3
3000
PSI
DCV2
SV3
CV11
CV10
OR3 OR4
CV6CV5
DSV3DSV2
CV7 CV8
OR2
4H-40
DOWN
4H-41
UP
2H-42
FLOW
ENABLE
OR5
2H-21A
ENABLE
SV2
CV9
SBSA RBRA LA LB EA EB PLA PLB
P1
T
GLS LS T
PP
V4
V5
BLS
LS
GP2
P2
RV5
RELIEF VALVE
550 PSI
V3
BRAKE
HAND
PUMP
V1
BRAKE
OVERRIDE
3H-26
BRAKE
3H-45
2-SPEED
3H-65
AXLE
LOCK
PR1
PRESSURE
REDUCING
VALVE
500 PSI
SV6
CV13OR6
V2
LOOP
FLUSH
AL
2SPD
T0
TBR BRG
GLS
LS
M1 M2
SV5
1
2
2H-21B
OPTION -
LOAD CIRCUIT
1
3
2
12
OR8
SV7
SAE 04
SAE
06
PORT PLUGS:
NOTE A - PLUGGED WHEN NO GENERATOR USED.
GEN
GEN
TO LS
M

Skyjack SJ61T Specifications

General

Brand	Skyjack
Model	SJ61T
Category	Lifting Systems
Language	English