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Figure  3-43.  Checking  Flywheel  Concentricity  and  Alignment
Figure 3-44. Timing Gears and Cover, Exploded View

TM-9-6115-464-34 Generator Set Diesel Engine Driven Tactical Skid Mtd 15 Kw 3 Phase 4 Wire 120/208 and 240/416 Volts Manual
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ARMY TM 9-6115-464-34 AIR FORCE TO 35C2-3-445-2 NAVY  NAVFAC  P-8-624-34 (10) If inspection indicates that idler bearings must be replaced, disassemble idler as follows: (a) Remove bearings (26) and press races (27) from gear (29). NOTE Each bearing and race is a matched set and must be replaced as such. (b) Remove ring (28) from gear. (11) Do not remove idler shaft (30) from cylinder block unless inspection reveals damage. (12) Remove screws (31) and Iockwashers (32) to remove housing (33) and gasket (34). Discard gasket. b. Cleaning, Inspection, and Repair. WARNING Solvent, DryCleaning P-D-680, Type II is flammable and moderately toxic to skin, eyes and respiratory tract. Eye and skin protection required. Good general ventilation is normally adequate. Failure to observe this warning could cause servere personal injury or death. (1) Clean all parts with dry cleaning solvent (Federal Specification P-D-680) and dry thoroughly. (2) Visually inspect timing gear cover for cracks, corrosion, and other damage, (3) Inspect gears for cracked, chipped or broken teeth and excessive wear. (4)  Inspect  bearings  for  pitting  and  excessive  wear. (5)  Inspect  thrust  plate  for  cracks  and  deep  wear  patterns. (6) Inspect idler shaft for cracks, wear, and other damage. (7)  Inspect  threads  for  crossing,  stripping,  and  peening. (8)  Replace  seal  at  each  overhaul. (9)  Replace  any  damaged  or  worn  parts. c. Assembly and Installation. (1) Using new gasket, install housing (33) and secure with Iockwashers (32) and screws (31). (2) If shaft (30) was removed, press replacement into timing gear housing. (3)  If  bearings  were  replaced,  assemble  idler  assembly  as  follows: (a) Install ring (28) into gear (29). (b) Press races (27) into gear until they seat against ring. (c)  Install  bearings  (26). (4) Check that 20 degree (BDC) mark on flywheel is still aligned with timing mark on flywheel housing. (5) Install idler assembly and secure with washer (24) and screw (23). Torque idler shaft screw to 24-27 ft-lb. (6) Install fuel pump drive gear (22) insuring that the proper timing has been maintained (see paragraph 3-22). Secure gear with Iockwasher (21) and nut (20). Torque drive gear nut to 35-40 ft-lb. (7)  Press  replacement  seal  (19,  figure  3-44)  into  cover. 3-106







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