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 257 of 779

Remove

1. Remove ten cotter pins, slotted nuts (A), and flat

washers.

2. Remove two cap screws (B) and flat washers.

3. Remove and discard preformed packing (C) from oil

transfer tube counterbore in mounting base assembly

(D) (or from oil transfer tube in fan drive housing).

4. Remove front fan drive housing mounting base

assembly (D) from crankcase assembly.

Install

1. Position frunt fan drive housing mounting base

assembly (D) on crankcase assembly,

2. Install a new preformed packing (C) in oil transfer

tube counterbore in mounting base assembly.

3. Install two cap screws (B) and flat washers,

4. Install ten cotter pins, slotted nuts (A), and flat

washers.

Figure 5-125. Removing or installing front

fan drive housing mounting base assembly

from crankcase assembly.

Figure 5-126. Location of preformed packing

at oil transfer boss in crankcase assembly.

Remove

1. Remove and discard preformed packing (A) from oil

transfer tube in fuel injection pump mounting base.

2. Remove four bolts (B) and lock washers and remove

mounting base from crankcase assembly.

Install

Note.

Due to design change the curren t

engines use longer bolts and the addition of lock

washers. Check all bolts and discard any- that are

1-7

/

32-inch long. Replace with current 1-3

/

8-

inch bolts FSN 5305-725-0154 and lock washers

FSN 5310-584-5272 .

1. Position fuel injection pump mounting base on crank-

case assembly and install four bolts (B) and lock

washers and torque tighten to 750 pounds-inch.

2. Install a new preformed packing (A) in oil transfer

tube on mounting base.

Figure 5-127. Removing or installing fuel

injection pump mounting base.

Figure 5-128. Location of preformed packing

at oil transfer tube for fuel injection

pump mounting base.

5-71