TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
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TM 9-2815-220-24 STARTER DRIVE MECHANISM REPAIR 0157 00 DISASSEMBLY 1. Press spur gear shaft (7) from bearing housing (16), using an arbor press (item 8, WP 0176). 2. Remove plain encased seal (19) from bearing housing (16). Discard seal. 3. Check bearing (20) on each end of gear shaft (7). a. Look for broken, cracked or split rings, cracked, broken or loose separators, heat discoloration (brown-blue or blue-black color). Rotate the free race slowly and feel for roughness. If any of these conditions exists, the bearing must be replaced. b. If either bearing needs replacement, go to step 4. If both bearings are OK, go to step 5. CAUTION Because the force used to press the bearing from the gear is through the individual balls and not the race, the bearing is destroyed when it is removed. Do not use bearing once it has been pressed from the gear. 4. Press ball bearings (20) from spur gear shaft (7) using an arbor press. WARNING Retaining rings are spring loaded. 5. Remove retaining ring (21) from idler spur gear (9). Discard retaining ring. 6. Using an arbor press, remove ball bearing (22) from spur gear (9). 21 9 22 19 16 20 7 20 WP 0157 00-5