TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download
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TM 9-2350-247-20-1 ENGINE RUNS ROUGH, STALLS, OR DOES NOT PUT OUT FULL POWER (M548A3)—Continued 0017 00 HY 1. Replace engine fuel pump (WP 0150 00). 2. Open fuel return hose (1) at quick disconnect (2). 3. Remove half of quick disconnect coupling from fuel return hose. 4. Insert hose into suitable container of at least one gallon (4 liter) capacity. 5. Turn MASTER SWITCH ON. 6. Start and run engine at 2200 rpm for one minute (see your -10). 7. Stop engine (see your -10). 8. Did fuel flow at least 2/3 gallon (2.5 liters) per minute? YES NO HYN 1. Internal engine fuel restriction. Beyond unit repair. 2. Notify your supervisor. 2HY 1. Problem was engine fuel pump. 2. Verify no faults found. 0017 00-11/12 blank