7
8
6
5
2
10
11
1
9
Legend
1. Stabilizer Cylinder
2. Solenoid 4B
3. .060" Orifice with Solenoid Valve 4B
4. .060" Orifice with Solenoid Valve 4A
5. Solenoid 4A
6. Pressure Reducing Cartridge
7. Solenoid 12A
8. Solenoid 12B
9. Solenoid 3
10. Check Valve 2A
11. Check Valve 2B
4
3
Front
Conditions:
• Ignition ON, engine
running
• Boom angle is
above 40°
• Travel select lever in
(F) FORWARD or
(R) REVERSE
• Park brake OFF
• Service brake
DISENGAGED
While traveling, ride feels spongy
(riding on 3 wheels).
Replace check valve(s).
Inspect check valves 2A and 2B on the
stabilizer cylinder. Refer to Section 8.8,
“Hydraulic Cylinders.”
Check electrical wiring.
Check solenoid coils 4A and 4B in the
Stabil-TRAK™ manifold for correct
resistance (7-9 ohms).
Replace solenoid(s).
Remove solenoid coils 4A and 4B from
Stabil-TRAK™ manifold and inspect for
debris or damage. Refer to Section 8.8,
“Hydraulic Cylinders.”
Clean passages or replace cartridge(s).
Replace check valve(s).
Inspect check valves on frame sway
cylinder. Refer to Section 8.8, “Hydraulic
Cylinders.”
If OK
If OK
If OK
If OK
Not
OK
Not
OK
Not
OK
Not
OK
Not
OK
Refer to Stabil-TRAK™ Electrical
Circuit Operation and Troubleshooting
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