TM-9-2350-277-20-1 Unit Maintenance Manual Volume 1 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-1 RAMP WILL NOT RAISE OR FREE FALLS—Continued 0084 00 3Y 1. Has safety relief valve been replaced? YES NO 3YN 1. Replace safety relief valve (WP 0662 00). 2. Verify no faults found. 4Y 1. Has hydraulic pump been replaced? YES NO 4YN 1. Replace hydraulic pump (WP 0655 00). 2. Verify no faults found. 5Y 1. Replace hydraulic cylinder (WP 0656 00). 2. Verify no faults found. AY 1. Check all ramp hydraulic lines for damaged or loose fittings. 2. Are all lines free of leaks? YES NO AYN 1. Tighten any loose fittings and/or replace any damaged fluid lines (WP 0659 00) thru (WP 0668 00). 2. Verify no faults found. A2Y 1. Inspect ramp hydraulic cylinder (1) for leaks. 2. Is hydraulic cylinder free of leaks? YES NO A2YN 1. Replace hydraulic cylinder (WP 0656 00). 2. Verify no faults found. A3Y 1. Refill hydraulic tank (WP 0155 00). 2. Verify no faults found. 0084 00-3/4 blank