JLG Lull 1044C-54 II Series Service Manual page 68

Reference Diagrams
Diagram 4-1 — Mid-Inlet Hydraulic Schematic (cont'd)
C.B.
VALVE
C.B.
VALVE
BOOM
BOOM HOIST
TELESCOPE
A2 A5
A A
B B
(OPTION)
B2 B5
BR
G3
GAGE
A6
PORT
X
A
T
P
B
FRAME TILT
G2
S4
B
B6
G1
PIL
STEER
MODE
SELECTOR
4-2
BOOM HOIST CYLINDER
BOOM HOIST CYLINDER
FRAME
TILT AUX. 1
A6 A3
A A
B
B
3000
PSI
B6 B3
P
RB ACC
SW
FB
X
OR1
OR2 .043
.043
.040
OR3
60
PSI
PD1
60
SV1
PSI
S1
PS1
PS2
PD4
PC3 (270 PSI)
OR4
.043
OR5 (.043)
230 230
PSI PSI
PD2
PD3
FCB FTB
NOTE: HUSCO VALVE ASSEMBLY IS ORIENTATED
SO THAT THE "A" PORTS ARE FRONT
FORWARD OF THE "B" PORTS.
REAR CARR.
TILT CYLINDER
REAR CARR.
TILT CYLINDER
(OPTION)
CARRIAGE
AUX. 2 TRANSFER TILT
A1 A4
A A A
B B B
2800
PSI
B4
2800
B1
PSI
STABILIZER CONTROL VALVE
BOOM EXTEND/TRANSFER
LOCK-OUT VALVE
(B1)
(B2) PC1
V
RCB
V
RCR PC2
PB
250
PSI
SV2 CBP
CB
CBP
T
3500
T
OR5
PSI
.040
RCR
SYS
PR
150
PSI
PIL
RCB
225 PSI
REAR AXLE STABILIZER VALVE
TRANSFER CYLINDER
R.H. L.H.
OUTRIGGER OUTRIGGER
A7 A8
A A
B B
3150
PSI
B7 B8
OR4
.040
OR3
.040
100 PSI
CV2
SV3
CV1
.08
OR2
60 PSI
CV3
CV4
.130
.03
OR1
GAGE PORT
.18 DIA.
MV0420
31200079