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TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download

Page 168 of 870

TM 9-2350-247-20-1 ENGINE RUNS ROUGH, STALLS, OR DOES NOT PUT OUT FULL POWER (M548A3)—Continued 0017 00 5AY 1. Open fuel return hose (1) at quick disconnect (2). 2. Remove half of quick disconnect coupling from fuel return hose. 3. Insert hose into suitable container of at least one gallon (4 liter) capacity. 4. Turn MASTER SWITCH ON. 5. Start and run engine at 2200 rpm for one minute (see your -10). 6. Stop engine (see your -10). 7. Did fuel flow at least 2/3 gallon (2.5 liters) per minute? YES NO GO TO BY (PAGE 0017 00-6) 6AY 1. Submerge hose in fuel. 2. Start engine and run at 1200 rpm for 30 seconds (see your -10). 3. Stop engine (see your -10). 4. Are air bubbles appearing on the surface of the fuel? YES NO 6AYN 1. Problem is quick disconnect. 2. Remove and completely clean both supply and return quick disconnects. 3. Install quick disconnects on hoses. 4. Connect hoses to supply and return lines. Make sure quick disconnects snap firmly into place. 5. Verify no faults found. 0017 00-4