TM-9-2520-238-34 Direct Support for M113 Family Major Assemblies Download
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TM 9-2520-238-34 REPAIR FINAL DRIVE ASSEMBLIES A AND B — Continued 0020 00 Table 2. FINAL DRIVE A AND B WEAR LIMITS Reference Letter Point of Measurement Size and Fit of New Parts Wear Limits A Inside diameter of spur gear bearing bore in cover 5.5112 to 5.5128 (***) 5.5132 B Outside diameter of spur gear bearing 5.5110 to 5.5118 (*)(***) B-A Fit of bearing in cover bore 0.0006T to 0.0018L C Inside diameter of spur gear bearing 3.1490 to 3.1496 (*)(***) D Outside diameter of spur gear hub bearing surface 3.1504 to 3.1511 (*)(***) D-C Fit of bearing to spur gear hub 0.0008T to 0.0021T E Inside diameter of spur gear bearing bore in housing 5.5112 to 5.5128 5.5132 E-B Fit of bearing in housing bore 0.0006T to 0.0018T F Inside diameter of gear bearing bore in housing 3.9370 to 3.9380 3.9384 G Outside diameter of gear bearing 3.9364 to 3.9370 (*)(***) G-F Fit of bearing in housing bore 0.0000 to 0.0016L H Inside diameter of gear bearing 2.1648 to 2.1654 (*)(***) I Outside diameter at gear bearing surface of gear hub 2.1230 to 2.1270 (*)(***) I-H Fit of bearing on gear 0.0008T to 0.0021T J Outside diameter at seal surface of gear hub 2.1662 to 2.1670 (**) 2.1210 K Inside diameter of gear bearing bore in cover 3.9370 to 3.9380 (***) 3.9384 K-G Fit of bearing in cover bore 0.0000 to 0.0016T L Inside diameter of housing output bearing bore 5.5112 to 5.5128 (***) 5.5132 M Outside diameter of output bearing 5.5110 to 5.5118 (*)(***) M-L Fit of bearing in housing bore 0.0006T to 0.0028L N Inside diameter of output bearing 3.1490 to 3.1496 (*)(***) O Outside diameter at output bearing surface of output shaft 3.1504 to 3.1511 (*)(***) O-N Fit of bearing on output shaft 0.0008T to 0.0021T * Must be within new parts dimensions. ** Measure only if there is visual indication of bearing turning. *** Measure only if there is visual indication of wear or damage. END OF TASK 0020 00-15/16 blank