TM-9-2815-200-35

ENGINE, WITH CONTAINER:TURBOSUPERCHARGED, DIESEL ,FUEL INJECTION ,90-DEGREE “V” TYPE, AIR - COOLED ,12 - CYLINDER , ASSEMBLY ;MODELS AVDS-1790-2M (2815-856-4996), AVDS-1790-2A AND AVDS-1790-2AM (2815-856-9005)

TECHNICAL MANUAL; DIRECT SUPPORT, GENERAL SUPPORT AND DEPOT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS

TM-9-2815-200-35 - Page 453 of 779

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 th e

bevel gear to outer face of gearshaft.

pack to obtain correct shim dimensions. If shim s

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

must be added, they will have to be strippe d

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 beve l

gearshaft

bearing.

(a)

Rear fan driven gearshaft end play .

drive bevel gearshaft is identical to the procedure

Determining end play for the rear fan drive n

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 t o

153 .

paragraph 6-40d (2) (a) and figures 6-151 an d

(c)

Drive bevel gearshaft plug an d

6-152 for pertinent instructions .

retaining ring.

Refer to figure 6-186 to instal l

(b)

Rear fa n

drive bevel gearshaf t

plug and retaining ring .

backlash.

Determining backlash for the rear fan

6-159