TM-9-2520-238-34 Direct Support for M113 Family Major Assemblies Download
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TM 9-2520-238-34 REPAIR TRANSFER GEARCASES A, B, AND C — Continued 0017 00 ASSEMBLY C A U T I O N Do not weld aluminum castings. If replacement of a bearing cup or cone is required, its associated cup or cone must also be replaced. The gearcase mechanical housing includes the housing and cover. They are machined as a unit and must be replaced as an assembly. 1. If bearing cup (1) was removed during disassembly, install new bearing cup in housing (2). Heat bearing bore to 250-300 F (121-158 C), and freeze bearing cup. Position bearing cup to its associated bearing bore. Using bearing cup replacer and soft plastic hammer, tap cup in place. NOTE If roller bearing cones were removed during disassembly, install new ones. New cones may be heated in oil to 250 F (121 C) to aid installation. 2. Place gearcase housing (2) flat on smooth surface with cover side up. 3. If removed, install bearing cone (3) and bearing cone (4) on input gear (5). Install gear in housing (2). 4. Install secondary pump-drive gear (6) in housing (2) with smaller diameter hub toward housing. 5. If removed, install bearing cone (7) and bearing cone (8) on first intermediate gear (9). Install gear in housing (2) meshing teeth with input gear (5). 0017 00-13