Service Manual

Hydraulic System
8.44
Model 8042, 10042, 10054 Legacy Rev. 10/03
8.8.14 Outrigger Circuit (Down) and Troubleshooting (10042/10054)
(Refer to Section 8.8.28, “Outrigger Circuit Description (10042/10054),” for a more detailed explanation of
this circuit.)
HYDRAULIC
OIL COOLER
HYDRAULIC
RESERVOIR
PUMP
MAIN CONTROL
VALVE
E
R
E
R
OUTRIGGER
VALVE
P
T
A1
LS
B1
A2
B2
RETURN
FILTER
OUTRIGGER
SHUTTLE
VALVE
IN
T
T
AT TAC H
TILT
P
FRAME
SWAY
EXT/RET
LFT/LWR
AUX
Suction
Return
Load Sense
Pressure
LEFT
OUTRIGGER
CYLINDER
RIGHT
OUTRIGGER
CYLINDER
MH3870