TM 9-2330-379-14&P
UNIT TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
20.
HYDRAULIC PUMP ACTION WILL NOT RAISE ADAPTER TO FULL HEIGHT ADAPTER MAY
BE DOWN WHILE PUMPING
Step 1. Check fluid level in hydraulic pump assembly reservoir (1) (page 4-189).
a.
If fluid level is low, fill reservoir with hydraulic fluid to proper level and
visually inspect for external leakage.
b.
If fluid level is good, proceed to step 2. If leakage is indicated, replace
leaking part(s).
Step 2. Check for air in the system.
Bleed any air from the system (page 4-189). If no air is found in system,
replace the hydraulic pump assembly (page 4-182).
21.
HYDRAULIC PUMP ACTION SOFT OR MUSHY
Check for air in hydraulic lines (1).
Bleed air from hydraulic lines (page 4-189).
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