SkyTrak 8042 Service Manual - Manual (Page 850)

10.9 Model 8042, 10042, 10054 Legacy Rev. 10/03
Stabil-TRAK™ System and Boom Interlock System
10.4.2 Stabil-TRAK™ Solenoid Valves
There are five Stabil-TRAK™ solenoid valves installed in
the Stabil-TRAK™ manifold, attached to the stabilizer
cylinder above the left side of the rear axle.
If a solenoid valve is suspected of malfunctioning,
disconnect the coil wiring lead and test the coil for proper
resistance (7-9 ohms) and for proper voltage from the
harness (12 VDC). Replace the solenoid coil if open or
shorted to ground.
Also inspect the valve cartridge, o-rings, and the other
hydraulic and electrical components in the circuit to
accurately determine the cause of the problem.
All solenoid coils are identical and can be interchanged
for diagnostic purposes.
Note: DO NOT interchange solenoid valves 4A (13),
4B (14), 12A (15) or 12B (16) with solenoid valve 3 (17).
These valves will fit into the other locations, but are
configured differently internally and will not operate
properly if interchanged.
Cartridge valves 4A (13), 4B (14), 12A (15) and 12B (16)
are identical and can be interchanged for diagnostic
proposes.
IMPORTANT: Make sure the .060 orifices are in place
when installing solenoid valves 4A (13) and 4B (14).
In general, if there is a problem with the Stabil-TRAK™
system beyond common electrical troubles, the involved
electrical and hydraulic circuits should each be checked
and the exact source of the problem diagnosed before
any parts are replaced.
OH0724
8042/10042
7
8
9
H
G
F
E
D
C
B
A
OH0624
10054
10
11
12
MT3131
13
14
15
16
17