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TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download

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Figure 4-83. Figure 4-84. figure 4-85 1. Using two 5 / 16-in. steel rods (A) hold fuel injection pump drive coupling flange (nearest the pump) stationary and rotate the other coupling half coun- terclockwise to remove backlash from the pump drive shaft. 2. Making certain timing marks (B) are a lined and backlash is removed, position pilot ring (C) on coupler half and install four lock washers and bolts. Figure 4-82. Removing fuel injection pump drive gear train backlash and setting advance unit retard position-diaphragm coupler. 4-41