TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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TM 9-2320-361-24-1 0069 00 0069 00-6 FUEL INJECTION PUMP REPLACEMENT (Contd) CAUTION Remove caps or plugs from hoses, connections, and openings before reconnection. Failure to do so may result in damage to equipment. INSTALLATION 1. Align timing marks (6) on crankshaft damper (8) with timing pointer (5). 2. Install drive gear hub (4) on timing device shaft (9) with new lockwasher (11) and nut (12). 3. Install fuel injection pump gear hub wrench on drive gear hub (4) with two screws (13). Tighten nut (12) 66–71 lb-ft (90–96 N•m). Remove screws (13) and gear hub wrench. 4. Remove four screws (14), lockwashers (15), timing cover (16), and gasket (17) from fuel injection pump (10). Discard lockwashers (15) and gasket (17). 5. Remove two screws (22), lockwashers (23), timing window cover (21), and gasket (20) from fuel injection pump (10). Discard lockwashers (23) and gasket (20). NOTE Ensure drive gear hub timing mark is aligned with the pointer when installing the fuel injection pump drive gear and retaining plate. 6. Align timing mark (18) on drive gear hub (4) with pointer (19) when marked tooth (24) in timing window (25) is visible. 7. Install new gasket (30) and fuel injection pump (10) on adapter (31) with two new lockwashers (26), screws (27), and screw (29). 8. Install bracket (34) and new lockplate (37) on fuel injection pump (10) and crankcase (32) with two new lockwashers (33), screws (38), washers (36), and screws (35). Bend lockplate (37) ends over screws (35). 9. Install drive gear (7) on drive gear hub (4). NOTE The three elongated holes in the fuel injection pump drive gear allow about 20° free rotation around the injection pump drive gear hub. In cases where the alignment mark will not align with pointer, remove drive gear retaining plate and drive gear to reposition the gear on hub. 10. Install retaining plate (3) on drive gear (7) with three new lockwashers (2) and screws (1). Do not tighten screws (1). 11. Rotate timing device shaft (9) clockwise, as necessary, to align timing mark (18) on drive gear hub (4) with pointer (19). 12. Hold shaft (9) in aligned position and tighten three screws (1) 23–27 lb-ft (31–37 N•m). 13. Align timing marks (6) on crankshaft damper (8) with timing pointer (5). 14. Install new gasket (20) and timing window cover (21) with two new lockwashers (23) and screws (22). 15. Install new gasket (17) and timing cover (16) on fuel injection pump (10) with four new lockwashers (15) and screws (14).