TM 5-2350-262-20-3
NO. 3 LEFT ACTUATOR INTERNAL LEAKAGE TEST
NOTE
Have suitable container ready to catch oil.
Disconnect CORNER SPNSN UNIT-2 hose (1) from elbow (2) at port 2 on NO. 4 left
actuator (3). Cap elbow (2).
Remove drain hose from REAR SPNSN UNIT-9 hose (4) and connect tee (5) and
pressure measuring device (6) between REAR SPNSN UNIT-9 hose (4) and CORNER
SPNSN UNIT-2 hose (1).
Start engine and observe that hydraulic pressure is greater than 2,500 psi (17,238 kPa).
Less than 2,500 psi (17,238 kPa) indicates leakage from No. 3 left actuator. Stop engine;
relieve hydraulic pressure. Remove all test equipment and connect hoses.
NO. 3 LEFT ACTUATOR BINDING CHECK
NOTE
Have suitable container ready to catch oil.
Disconnect INTMD SPNSN UNIT-2 hose (1) from adapter (2) at port 2, and disconnect LH
3 SPNSN UNIT-7 TEE tube (3) and NO 3 SPNSN UNIT-7 TEE hose (4) from elbow (5)
and tee (6) at port 7 on No. 3 left actuator (7). Plug all lines.
Check for binding in No. 3 left actuator (7) by using a prybar to determine if No. 3 lift road-
wheel arm can be moved up or down. Reconnect lines.
Notify Direct Support maintenance.
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