TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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1. Measure the total thickness (A) of ball bearing inner Note. The shim pack has several 0.002-inch race to face of outer race, with end play removed. 2. Measure the total thickness (B) from inner face of laminations. Shims may be stripped from the bevel gear to outer face of gearshaft. pack to obtain correct shim dimensions. If shims 3. Add thickness of ball bearing race (A) and gearahaft must be added, they will have to be stripped movement (B) and subtract from 2.6605 to 2.6625- from a new shim pack. inch. Add or remove 0.002-inch shim lanimations from shim pack - 2930-678-3271 until required dimension (C) is established. Figure 6-189. Determining shim thickness for accessory drive bevel gearshaft bearing. (a) Rear fan driven gearshaft end play. drive bevel gearshaft is identical to the procedure Determining end play for the rear fan driven outlined for the front fan drive bevel gearshaft. gearshaft is identical to the procedure outlined Refer to paragraph 6-40d (2) (b) and figure 6- for the front fan driven gearshaft. Refer to 153. paragraph 6-40d (2) (a) and figures 6-151 and (c) Drive bevel gearshaft plug and 6-152 for pertinent instructions. retaining ring. Refer to figure 6-186 to install (b) Rear fan drive bevel gearshaft plug and retaining ring. backlash. Determining backlash for the rear fan 6-159