Lull 944E-42 Service Manual - Manual (Page 354)

Hydraulic System
8.102 Model 644E-42/944E-42 Rev. 6/04
8.8.24 Attachment Tilt (Up), Slave Cylinder Circuit & Troubleshooting (Dual Joystick)
(Refer to Section 8.8.56, “Attachment Tilt and Slave Circuit Description (Dual Joystick),” for a more detailed
explanation of this circuit.)
Suction
Return
Load Sense
Pressure
Pilot Pressure
PUMP
HYDRAULIC
RESERVOIR
ATTACH
TILT
FRAME
EXT/RET LFT/LWR
AU
X
TRANS
ACCUMULATOR
CHARGE/SECONDARY
FUNCTION VALVE
LS
DRAIN P1
LSG ACR
SW P
ACF EF CF PIL PB
PBG
PPG
SW
MAIN CONTROL
VALVE
INLET
OUTLET
HYDRAULIC OIL
COOLER
FRONT
JOYSTICK
ATTACHMENT TILT
CYLINDER
E R
E
R
E
R
LEFT SLAVE
CYLINDER
1 2
3
T
P
RIGHT SLAVE
CYLINDER
4
CHECK VALVE
85 PSI (5,9 bar)
RETURN
FILTER
25 PSI
(1,7 BAR)
BYPASS
CHECK
VALVE
MU0671
Pressure
Reducing
Cartridge
Relief
Valve
Main
Relief
Valve
“PPG”
Pressure
Tap
Implement
Pump
Pressure
Tap