TM 9-2320-361-34 I 15-43. MAIN DRIVE IDLER GEAR MAINTENANCE THIS TASK COVERS: a. Removal d. Assembly b. Disassembly e. Installation c. Cleaning and Inspection INITIAL SETUP APPLICABLE MODELS M764 TOOLS General mechanic’s tool kit (Appendix B, Item 1) Mechanical puller kit (Appendix B, Item 22) MATERIALS/PARTS Sixteen lockwashers (Appendix F, Item 138) Cotter pin (Appendix F, Item 6) Cotter pin (Appendix F, Item 13) Gasket (Appendix F, Item 58) Gasket (Appendix F, Item 59) No gaskets (Appendix F, Item 60) Two O-rings (Appendix F, Item 170) O-ring (Appendix F, Item 171) Two woodruff keys (Appendix F, Item 276) Two oil seals (Appendix F, Item 239) Four locknuts (Appendix F, Item 98) Sealing compound (Appendix C, Item 17) PERSONNEL REQUIRED Two REFERENCES (TM) LO 9-2320-209-12-1 TM 9-214 TM 9-2320-361-10 TM 9-2320-361-20 TM 9-2320-361-34P EQUIPMENT CONDITION . Parking brake set (TM 9-2320-361-10). . Hydraulic pump universal joint removed (TM 9-2320-361-20). ● Main drive idler gear housing drained (LO 9-2320-209-12-1). GENERAL SAFETY INSTRUCTIONS Support housing before removing hardware. — a. Removal 1. Remove four locknuts (18), screws (21), and shaft flange (20) from flange (19). Discard locknuts (18) WARNING Support main drive idler gear housing before removing hardware. Failure to do so may result in injury to personnel or damage to equipment. 2. Remove eight nuts (7), lockwashers (6), screws (2), housing (5), and gasket (3) from clutch case (1). Discard lockwashers (6) and gasket (3). b. Disassembly 1. 2. 3. 4. 5. 6. 7. Remove cotter pin (30), nut (29), shaft (9), and idler gear (4) with bearings (35) from housing (5). Discard cotter pin (30). Remove two O-rings (8) from shaft (9). Discard O-rings (8). Remove cotter pin (24), nut (23), washer (22), flange (19), woodruff key (33), and gasket (34) from shaft (27), Discard cotter pin (24), woodruff key (33), and gasket (34). Remove eight screws (11), lockwashers (10), two retainers (12), and gaskets (17) from housing (5). Discard lockwashers (10) and gaskets (17). Press two oil seals (16) from retainers (12). Discard oil seals (16). Loosen setscrew (13) and remove collar (14) and O-ring (31) from shaft (27). Discard O-ring (31). Remove shaft (27) with bearings (26) and (28) and main drive gear (25) from housing (5). 15-182