TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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6-11. Rebuild of Starter Drive a. Disassembly. Disassemble starter driven gearshaft following the sequence of instructions in figures 6-19 and 6-20. Note. If the engine is equipped with a bearing cage that does not have a groove on the pilot diameter for the installation of a preformed packing, discard this bearing cage. Although both the old and new bearing cages maintain the same part number 8761022, only the late bearing cage is carried through normal replacement part channels and must be used when rebuilding starter driven gearshaft. Preformed packing MS 28775-236 cannot be used on a bearing cage unless there is a groove in the cage pilot to accommodate it. 1. Press starter driven gearshaft (A) from upper ball bearing. 2. Press gearshaft from the lower ball bearing (B) in a similar manner. Figure 6-20. Pressing starter driven gearshaft from ball bearings. 1. Press the starter driven gearshaft from bearing cage. 2. To remove oil seal (A), press it from the bearing cage using a suitable arbor press. Discard oil seal. Figure 6-19. Pressing starter driven gear- shaft and bearings from bearing cage. 6-25