TM 5-2320-262-20-3
CASE DRAIN LEAKAGE TEST
WARNING
Before performing any hydraulic troubleshooting in bowl, move
ejector forward and engage the ejector lock. Failure to comply may
result in severe injury or death to personnel.
NOTE
Have a graduated container of at least two quart (1.9 liter)
capacity available to catch hydraulic oil while test is being
performed.
Have suitable container ready to catch oil.
Start engine, move ejector forward, stop engine, engage ejector lock, and relieve
hydraulic pressure.
Disconnect SPNSN PUMP-9 hose (1) from elbow (2) on compensating pump (3). Cap
elbow (2) and plug hose (1).
Disconnect SPNSN PUMP DRAIN-7V hose (4) from elbow (5). Plug hose (4). Connect
drain hose (6) to elbow (5).
Hold end of drain hose (6) in graduated container.
Have assistant start engine and run at 1,800 rpm for 15 seconds. Observe the quantity of
hydraulic oil in container. More than 1.25 qts (1.2L) indicates excessive leakage.
Stop engine; relieve hydraulic pressure, remove all test equipment, and connect hoses.
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