TM 9-2350-238-34-2
2-39. MAINTENANCE OF PRESSURE RELIEF VALVE 12253778-1 AND PRESSURE
RELIEF VALVE 12253778-2 (CONT).
ADJUSTMENT OF TOW WINCH PRESSURE RELIEF VALVE.
OIL PRESSURE TESTER
1 Perform adjustment of check valve procedures.
2 Turn off hydraulic system. Refer to TM 9-2350-238-10.
3 Remove spring cap (1) from tow winch pressure relief valve (2).
4 Install 3000 psi (20,685 kPa) oil pressure tester in test port (3).
5 Pull up lock trigger (4).
6 Set tow winch control lever (5) to HI.
7 Pull out TOW WINCH BREAKE PRESSURE
SELECTOR knob (6).
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