Lull 944E-42 Service Manual - Manual (Page 364)

Hydraulic System
8.112 Model 644E-42/944E-42 Rev. 6/04
8.8.29 Transfer Carriage Cylinder Retract (Carriage Fwd) Circuit & Troubleshooting
(Single Joystick)
(Refer to Section 8.8.59, “Transfer Carriage Circuit Description (Single Joystick),” for a more detailed explanation
of this circuit.)
ATTACH
TILT
FRAME
EXT/RET LFT/LWR
AU
X
TRANS
INLET
OUTLET
RETURN
FILTER
25 PSI
(1,7 BAR)
BYPASS
CHECK
VALVE
SINGLE
JOYSTICK
HYDRAULIC OIL
COOLER
CHECK VALVE
85 PSI (5,9 bar)
HYDRAULIC
RESERVOIR
Suction
Return
Load Sense
Pressure
Pilot Pressure
1
3
T
P
4
2
PUMP
ACCUMULATOR
CHARGE/SECONDARY
FUNCTION VALVE
LS
DRAIN P1
LSG ACR
SW P
ACF EF CF PIL PB
PBG
PPG
SW
TRANSFER
CARRIAGE
CYLINDER
R
E
P4 P3
P
P2
T
EB
EA
HB
HA
CTB
CTA
SINGLE
JOYSTICK
PILOT
SELECT
VALVE
P1
TB
TA
AUX2
AUX1
MAIN
CONTROL
VALVE
MU5370
Pressure
Reducing
Cartridge
Relief
Valve
Main
Relief
Valve
“PPG”
Pressure
Tap
Implement
Pump
Pressure
Tap
Priority
Cartridge