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 CRANKS BUT WILL NOT START BELOW 40 F (AIR BOX HEATER IS USED)—Continued 0015 00 2Y 1. Release air box heater switch. 2. Turn MASTER SWITCH OFF. 3. Install air box igniter. 4. Install air box heater harness plug wire on igniter coil. 5. Remove solenoid to air box heater tube assembly (1). 6. Turn MASTER SWITCH ON. 7. (H) Turn air box heater switch ON with engine cranking. Do not allow engine to start. 8. Does fuel fail to flow from solenoid with air box heater switch ON? YES NO 2YN 1. Air box heater is working properly. Go to engine cranks, but will not start (WP 0014 00). 2. Verify no faults found. 3Y 1. Release air box heater switch. 2. Turn MASTER SWITCH OFF. 3. Remove fuel supply line to solenoid (1) at return tee (2). 4. Crank engine for 3-5 seconds. 5. Does fuel flow from return tee with engine cranking? YES NO 3YN 1. Install solenoid fuel supply line on return tee. 2. Go to engine cranks, but will not start (WP 0014 00) 0015 00-3