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 TM 55-1905-219-14-3
Table 3-82. Mast Hydraulic System - Troubleshooting (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Inoperative (Cont).
Step 2.
Inspect that system is turned on and little or no pressure.
Refer to table 3-79 for corrective action.
Step 3.
Check directional control valve and flow control manifold.
a. Damaged control lever.
Refer to paragraph 3-198.
b. Defective valve.
Refer to Direct Support Maintenance.
c. Defective flow control manifold.
Replace, refer to paragraph 3-198.
Repair, refer to Direct Support Maintenance.
Step 4.
Check hydraulic ram.
a. Adjusting screw leaking.
Refer to paragraph 3-197.
b. Damaged clevis, cotter pin, or swivel.
Refer to paragraph 3-197.
c. Defective ram.
Refer to Direct Support Maintenance.
Step 5.
Inspect for leaking hoses and piping.
a. Replace defective hoses.
Refer to paragraph 3-199.
b. Piping defective.
Refer to Direct Support Maintenance.
U.S. GOVERNMENT PRINTING OFFCE: 1992 - 6549-028/600-40
PIN: 046239-002
3-232
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