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 TM 55-1905-221-14-1
Table 4-1. Troubleshooting (Continued).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
33. NOISY OPERATION OF PUMP.
Check for air in system.
Purge air from system (para 4-27).
34. RAMP BRAKE DOES NOT RELEASE.
Step 1. Check insufficient operating pressure.
If pressure is adequate (300 psi), check counterbalance valve setting (para 4-96).
Step 2. Check for foreign material in system.
Flush system completely and clean strainer and filter (para 4-27).
35. EXCESSIVE HEAT BUILDUP IN RAMP HYDRAULIC SYSTEM.
Check to see if relief valve is leaking at high pressure.
Adjust relief valve (para 4-27).
36. LOSS OF OIL.
Check for ruptured line.
Replace line.
37. LEAK AT BILGE PUMP PACKING GLAND.
Check to see if packing gland is too loose or needs' repackin .
g
Tighten or replace gland (para 4-68).
4-18
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