TM 9-2350-238-34-22 - 3 9 . M A I N T E N A N C E O F P R E S S U R E R E L I E F V A L V E F 1 2 2 5 3 7 8 - 1 A N D P R E S S U RERELIEF VALVE 12253778-2 (CONT).ADJUSTMENT OF TOW WINCH PRESSURETESTEROIL PRESSURE1314151617181920If correct pressure adjustment cannot beobtained, replace tow winch pressurerelief valve (2). Refer to page 2-154.Turn off hydraulic system. Refer to TM9-2350-238-10.Pull up lock trigger (4).Set tow winch control lever (5) to N.Push in TOW WINCH BRAKE PRESSURESELECTOR knob (6).Disconnect oil pressure tester from towwinch pressure relief valve (2).Slowly pull TOW WINCH control handle(8) to IN to remove air trapped in towwinch pressure relief valve (2).Install spring cap (1).2-188
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