TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
Page 142 of 1176
TM 9-2320-361-24-1 0008 00 0008 00-14 MECHANICAL SYSTEMS TROUBLESHOOTING - DIRECT SUPPORT (Contd) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION WARNING • Fuel is flammable. Do not perform troubleshooting checks near open flame, sparks, or electricity. Injury or death to personnel may result. • Eye protection is required when performing fuel system troubleshooting procedures. Failure to wear eye protection may result in injury to personnel. • Ignition switch must remain off during fuel system troubleshooting procedures. Failure to verify that ignition system is turned off may result in injury to personnel. 1. NO FUEL AT FUEL INJECTORS WARNING If rod clevis is not positioned tightly against cover window bearing screw, fuel shutoff rod may be binding. Verify fuel shutoff rod travels freely before adjusting clearance between rod clevis and bearing screw. Failure to verify fuel shutoff rod condition may result in governor sticking, under acceleration, and injury to personnel. CAUTION Shutoff rod cover installation will require fuel shutoff rod clevis operating cable to be placed in the RUN position and governor linkage in the LOW IDLE position. Incorrect positioning of linkage and/or fuel shutoff cable may result in jamming of linkage in FULL FUEL load position. Engine will run wide open when started and may cause damage to engine. 1. Check fuel injection pump fuel shutoff operation and adjustment (WP 0071 00 and WP 0446 00). Place fuel shutoff cable control on instrument panel to RUN position. Remove timing cover on fuel injection pump (WP 0069 00). 1. If clearance between rod clevis and screw exist, check fuel shutoff rod condition (WP 0446 00). 2. If clearance between rod clevis and screw exists, adjust operating cable (WP 0071 00). 3. If fuel shutoff is damaged or defective, replace fuel shutoff assembly (WP 0446 00). Table 2. Fuel System Troubleshooting Procedures.