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TM-9-2520-238-34 Direct Support for M113 Family Major Assemblies Download

Page 280 of 336

TM 9-2520-238-34 REPAIR DIFFERENTIAL RIGHT ANGLE GEARBOX — Continued 0028 00 Table 1. DIFFERENTIAL RIGHT ANGLE GEARBOX WEAR LIMITS Reference Letter Point of Measurement Size and Fit of New Parts Wear Limits A Inside diameter at bearing surface in bearing housing 4.4375 to 4.4385 4.4390 B Outside diameter at seal surface of bevel gear 2.6220 to 2.6280 2.6200 C Outside diameter at bearing surface of bevel gear 2.7515 to 2.7525 (*)(**) D Outside diameter of bearing 4.3301 to 4.3307 (*)(**) E Inside diameter of bearing 2.9522 to 2.9528 (*)(**) F Outside diameter of bearing 5.1173 to 5.1181 (*)(**) G Inside diameter at bearing surface of housing 3.1179 to 5.1189 (**) 5.1194 G-F Fit of bearing in housing 0.0016L to 0.0002T 0.0021L H Outside diameter at bearing surface of gear hub 2.9527 to 2.9533 (*)(**) H-E Fit of bearing on gear hub 0.0001L to 0.0011T (*) I Outside diameter at bearing surface of gear hub 3.3464 to 3.3471 (*)(**) J Outside diameter of bearing 5.9047 to 5.9055 (*)(**) K Inside diameter of bearing 3.3457 to 3.3465 (*)(**) K-I Fit of bearing on gear hub 0.0001L to 0.0014T (*) L Inside diameter of bearing surface of adapter plate 5.9053 to 5.9060 (**) 5.9065 L-J Fit of bearing in plate 0.0013L to 0.002T 0.0018L M Backlash between gears in plane of rotation 0.008 to 0.013 (*)(***) N Inside diameter at bearing surface in housing 4.3300 to 4.3309 (**) 4.3312 N-D Fit of bearing in housing 0.0008L to 0.0007T 0.0011L O Inside diameter of bearing 2.3616 to 2.3622 (*)(**) P Outside diameter at bearing surface of bevel gear 2.3630 to 2.3637 (*)(**) P-O Fit of bearing on bevel gear 0.0008T to 0.0021T (*) Q Outside diameter of bearing 4.4375 to 4.4385 (*)(**) Q-A Fit of bearing in housing 0.0010L to 0.0010T 0.0015L R Inside diameter of bearing 2.7500 to 2.7510 (*)(**) R-C Fit of bearing on bevel gear 0.0005T to 0.0025T (*) S Inside diameter at seal surface of retainer 3.3490 to 3.3510 (*)(****) * Must be within new parts dimensions. ** Measure only if there is visual indication of bearing turning. *** To measure backlash see repair differential right angle gearbox (WP 0029 00). **** Measure only if there is visual indication of surface damage. END OF TASK 0028 00-22