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 STANDARD MAINTENANCE INSTRUCTIONS 0028 00 INSPECTION (Continued) Bearings Check all bearings for conformance to the applicable Repair Standards. To inspect bearings removed from hardware, refer to TM 9-214, Inspection, Care, and Maintenance of Antifriction Bearings. To inspect bearings in-place, use the instructions that follow: Ball and Roller Bearings (Non-Separable): 1. Remove the shaft or gear on which the bearing is mounted. WARNING Cleaning Compound Solvent 2. Clean the mounted bearing with cleaning solvent (item 8, WP 0173). a. Flood the bearing with solvent (item 8, WP 0173). b. Use a sash or paint brush to clean. c. Do not use compressed air. 3. Reject the bearing for the following defects: • • • • • Broken, cracked or split rings Dented seals or shields Cracked or broken separators Loose separator pins Heat discoloration (brown-blue or blue-black color) 4. Rotate the free race slowly and feel for roughness. a. If any defect is observed or felt, the bearing is to be removed with final inspection and disposition per TM 9-214. 5. If the bearing exhibits no defects, lubricate bearing with engine oil (item 21, WP 0173). WP 0028 00-9