TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 9-11. REAR MAIN OIL SEAL REPLACEMENT This task covers: Inspection INITIAL SETUP: Tools Maintenance Level General mechanic's tool kit: Direct support automotive (Appendix G, Item 1) Dial indicator (Appendix G, Item 95) Clamp (Appendix G, Item 118) Materials/Parts Two locknuts (Appendix E, Item 49) Inspection 1. Park vehicle on a flat surface. 2. Chock front and rear wheels, and release parking brake. 3. Use a flat steel plate or scrap metal (6) and clamps (7), to position dial indicator mount assembly (5) on crossmember suspension (1). 4. Position dial indicator (4) on disc assembly (3). 5. Manually move axle shaft (2) up and down vertically as far as possible. Note dial indicator reading in each direction, and record combined readings. 6. If sum of up and down vertical movement exceeds 0.0236 in. (0.5994 mm), notify General Support to disassemble differential, inspect for excessive wear, and replace worn components (para. 19-3). 7. Repeat steps 1 through 6 for remaining axles. 9-24