TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
Page 1340 of 1563
TM 9-2815-220-24 STARTER DRIVE MECHANISM REPAIR 0157 00 INSPECTION (Continued) 6. Measure outside diameter (A) of idler shaft (12). Replace shaft if not within specifications in the following table. 7. Measure inside diameter (B) of idler spur gear (9). Replace spur gear if not within specifications in the following table. 8. Inspect bearing (22). 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. New bearing dimensions, inside (C) and outside (D), are provided for information purposes only; you need not perform the measurements. Location Sizes and Fit of New Parts inches (mm) Wear Limits A (idler shaft) 1.1804 (29.9821) 1.1808 (29.9923) 1.1802 (29.9770) B (gear bore) 3.5419 (89.9642) 3.5433 (89.9998) 3.5440 (90.0176) C (inside bearing) 1.1807 (29.9897) 1.1811 (29.9999) None D (outside bearing) 3.5433 (89.9998) 3.5427 (89.9845) None A C 9 D B 2 12 2 WP 0157 00-8