TM 9-2330-390-14&P
Table 4-2. Unit Troubleshooting (Con't).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
15. LIFT CYLINDER(S) WILL NOT OPERATE.
Step 1.
Check hydraulic control valve for damage. Check for proper operation of levers (see
paragraph 2-21).
Replace damaged hydraulic control valve (see paragraph 4-108).
Step 2.
Check for leaking or damaged lift cylinder.
Replace damaged lift cylinder (see paragraph 4-110).
16. POSITIONING CYLINDER(S) WILL NOT OPERATE.
Step 1.
Check hydraulic control valve for damage. Check for proper operation of lever (see
paragraph 2-21).
Replace damaged hydraulic control valve (see paragraph 4-108).
Step 2.
Check for leaking or damaged positioning cylinder.
Replace damaged positioning cylinder (see paragraph 4-83).
17. LIFT CYLINDER DRIFTS.
Check hydraulic control valve for proper operation of levers (see paragraph 2-21). Ensure that lever(s) return
to center position.
Replace damaged hydraulic control valve (see paragraph 4-108).
Replace damaged check valve (see paragraph 4-110).
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