TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download
Page 172 of 870
TM 9-2350-247-20-1 ENGINE RUNS ROUGH, STALLS, OR DOES NOT PUT OUT FULL POWER (M548A3)—Continued 0017 00 FY 1. Check and see if both electric fuel pumps are working. 2. Are both electric fuel pumps working? YES NO GO TO GY (PAGE 0017 00-9) 2FY 1. Flow test electric fuel pumps (WP 0148 00). 2. Is fuel flow from electric fuel pumps 1 to 2 quarts (1.4 to 2.4 liters) per minute? YES NO 2FYN 1. Replace defective electric fuel pumps (WP 0151 00). 2. Verify no faults found. 3FY 1. Inspect fuel lines and connections. 2. Tighten hose connections between fuel compartment and electric fuel pumps if needed. 3. Remove left rear and right forward fuel access covers (WP 0163 00). 4. Clean screens at the end of each tube. 5. Remove blockage from pickup tubes. 6. Are any fuel lines kinked or leaking? YES NO 3FYN 1. Internal fuel restriction. Beyond unit repair. 2. Notify your supervisor. 4FY 1. Install left rear and right forward fuel compartment access covers (WP 0163 00). 2. Tighten and/or replace fuel lines as needed (WP 0168 00). 3. Verify no faults found. 0017 00-8