Lull 944E-42 Service Manual - Manual (Page 350)

Hydraulic System
8.98 Model 644E-42/944E-42 Rev. 6/04
8.8.22 Attachment Tilt (Down), 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.)
RETURN
FILTER
25 PSI
(1,7 BAR)
BYPASS
CHECK
VALVE
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)
MU0661
Pressure
Reducing
Cartridge
Relief Valve
Main
Relief
Valve
“PPG”
Pressure
Tap
Implement
Pump
Pressure
Tap