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 451 of 779

Fig.

No.

6-187

6-181

6-187

6-187

6-187

6-187

Table 6-32. Rear Fan and Accessory

Ref.

letter

J

K

L

M

N

P

Setting height

3-1/ 2

4-5 / 8

2-9/16

4-1 / 4

5-1/ 4

1

Stud Identification

No. req’d

2

1

4

9

2

2

Drive Housings Standard and Oversize

on-Continued

Stud size

and length

Note.

Refer to figure 6-1 for oversize stud identification.

d. Assembly.

(1)

Shimming procedures for rear fa n

driven gearshaft, rear fan drive bevel gearshaft,

and accessory drive bevel gearshaft.

Note.

Before assembly of the rear fan and

accessory drive housings, it is necessary to

determine the shim thickness required to control

the end play of the rear fan driven gearshaft and

backlash of the fan drive bevel gearshaft. Figure

6-188 illustrates shim location and measuring

points. The shim thickness for the accessory

drive bevel gearshaft,

which determines th e

backlash and end play of the two camshaft bevel

gearshafts, is determined as shown in figure 6-

189.

6-157