TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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Remove 1. Separate fuel injection pump diaphragm coupler halves (A). 2. Cut locking wire and remove two bolts (B) and washers. 3. Remove bolt (C) and washer. 4. Loosen bolt (D) until threads are free. Bolt cannot be removed until after fuel injection pump is removed from engine. Install Note. Be sure lower right hand fuel injection pump long mounting bolt (D) and washer are inserted in injection pump before pump is seated on mounting base. It cannot be installed with pump in position. 1. Tighten bolt (D). 2. Install long bolt (C) and washer. 3. Install two short bolts (B) and washers. Install locking wire on bolts (B and C) and on bolts (B and D). Figure 4-56. Separating fuel injection pump diaphragm coupler and removing or installing fuel injection pump mounting bolts. 1. Remove fuel injection pump (A) from mounting base. 2. Remove and discard preformed packing (B) from mounting base. 3. Remove bolt (C) and washer. Note. Plug or cap fuel and oil openings in pump. Figure 4-57. Removing fuel injection pump and preformed packing-splined coupler. 4-30