Figure 6-189. Determining shim thickness for accessory drive bevel gearshaft bearing

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.

laminations. Shims may be stripped from the

2. Measure the total thickness (B) from inner face of

pack to obtain correct shim dimensions. If shims

bevel gear to outer face of gearshaft.

must be added, they will have to be stripped

3. Add thickness of ball bearing race (A) and gearahaft

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

Figure 6-189. Determining shim thickness for accessory drive bevel

gearshaft

bearing.

drive bevel gearshaft is identical to the procedure

(a) Rear fan driven gearshaft end play.

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.

bevel

gearshaft

plug

and

retaining ring. Refer to figure 6-186 to install

6-152 for pertinent instructions.

(b) Rear fan

drive bevel gearshaft

plug and retaining ring.

backlash. Determining backlash for the rear fan

6-159