TM 5-3810-306-20
TABLE 3-1. ORGANIZATIONAL TROUBLESHOOTING (CONTD)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
53. HOIST WILL NOT LOWER LOAD
Step 1.
Broken hydraulic lines or fittings.
a. Inspect hydraulic lines and fittings. If OK, do Step
2.
b. Replace hydraulic lines or fittings. (Refer to page
16-26.)
Step 2.
Defective main hydraulic relief valve.
a. Check relief valve adjustment. (Refer to page
16-54.) If OK, do Step 3.
b. Contact Direction Support Maintenance to replace
hydraulic relief valve.
Step 3.
Defective hoist motor control valve.
a. Contact Direct Support Maintenance.
54. SLOW HOIST OPERATION DOWN
Step 1.
Defective main hydraulic relief valve.
a. Check relief valve adjustment. (Refer to page 16-54.)
If OK, do Step 2.
b. Contact Direct Support Maintenance to replace
hydraulic relief valve.
Step 2.
Defective hydraulic pump.
a. Contact Direct Support Maintenance.
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