Skytrak 8042 - Hydraulic Troubleshooting - LOCKED MODE, Will Not Frame Level Left

Stabil-TRAK™ System and Boom Interlock System
10-41
6036, 6042, 8042, 10042, 10054 31211015
10.11.14 Hydraulic Troubleshooting - LOCKED MODE, Will Not Frame Level Left
MAQ2030
BYPASS
CHECK
VALVE
FTR
P
T
V
Pressure
Suction
Return
Load Sense
G3
G2
G1
4A4B
12B
3
2B
2A
12A
FRAME
LEVEL
CYLINDER
.060 DIA.
.060 DIA.
100 PSI
SOLENOID COIL
STATE
ENERGIZED
DE-ENERGIZED
DE
E
DE
STABIL-TRAK
CYLINDER
DE DE
P
T
BV
JS
PB
PVG
PBG
T
ATTACH TILT
FRAME SWAY
EXT/RET
LIFT/LOWER
AUX
STABIL-TRAK
MANIFOLD
TM
TM
HYDRAULIC
OIL COOLER
HYDRAULIC
RESERVOIR
SECONDARY
FUNCTION
MANIFOLD
MAIN CONTROL
VALVE
T3
P
.030 DIA.
E
DE
Not
Conditions:
• Ignition ON,
engine running
•Boom angle is
above 40°
• Transmission in
(N) NEUTRAL, or
park brake ON or
service brake
ENGAGED
Inspect check valves 2A and 2B
on the Stabil-TRAK cylinder.
Replace check valve(s).
If OK
With boom above 40°, when frame
leveling to left, the right front tire comes
off the ground.
Not
Refer to Section 10.8, “Stabil-TRAK Boom
Interlock Electrical Circuit Operation and
Troubleshooting (6042/8042/10042),” or
Section 10.9,
“Stabil-TRAK Boom Interlock Electrical
Circuit Operation and Troubleshooting
(10054),”
Check electrical wiring.
Not
Check solenoid cartridge 3 in
the Stabil-TRAK manifold.
Replace cartridge.
If OK
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