Service Manual

Hydraulic System
8.24
Model 8042, 10042, 10054 Legacy Rev. 10/03
8.8.4 Boom Lift Circuit and Troubleshooting
(Refer to Section 8.8.23, “Boom Lift/Lower Circuit Description,” for a more detailed explanation of this circuit.)
IN
T
T
AT TAC H
TILT
P
FRAME
SWAY
EXT/RET
LFT/LWR
AUX
HYDRAULIC
OIL COOLER
HYDRAULIC RESERVOIR
PUMP
MAIN CONTROL VALVE
LEFT
LIFT/LOWER
CYLINDER
RIGHT
LIFT/LOWER
CYLINDER
RETURN
FILTER
E
R
Suction
Return
Load Sense
Pressure
E
R
MH3540