TM-9-2520-272-40 Direct Support for M113A3 X200-4A Transmission 2520-01-397-1074 Download
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TM 9-2520-272-40 0046 NOTE Do not remove left brake support components unless repair is necessary. Left brake support has bearing races in position. These are for bearings on output driven gear, output drive gear, and steer gear. Each of these bearings can be separated into two pieces and is a matched set with an outer race and an inner race and rollers. DO NOT REPLACE these three outer races unless the inner races and rollers of the related bearings are also being replaced. Refer to WP 0049 for removal of the inner races and rollers from output driven gear, output drive gear, and steer gear. REPAIR LEFT BRAKE SUPPORT CAUTION Be careful not to cut into left brake support when you use a grinder to cut slots in bearing races. 1. Cut two slots 180 degrees apart at base of bearing races (Figure 1, Item 1) and (Figure 1, Item 3) and (Figure 1, Item 4). Refer to Figure 2 for example of slots. Cut slots deep enough to catch the end of the chisel, but not deep enough to cut into left brake support (Figure 1, Item 2). WARNING Hot parts can burn you. Always wear leather gloves when working with parts that are or might be hot. 2. Apply heat to left brake support (Figure 1, Item 2) with heat gun around bearing races (Figure 1, Item 1) and (Figure 1, Item 3) and (Figure 1, Item 4) for 15 minutes. CAUTION Be careful not to cause damage to left brake support when removing races. 3. Turn left brake support (Figure 1, Item 2) over. Remove races (Figure 1, Item 1) and (Figure 1, Item 3) and (Figure 1, Item 4). 0046‐2