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 378 of 779

Caution:

Do not use an arbor press to remove

ball bearings from drive cluster gear. The gear is

designed with a shoulder between the tw o

bearings.

1. Remove ball bearings (A) from drive cluster gear

using a brass drift.

2. Remove thrust washer (B).

Figure 6-85. Drive cluster gear - exploded

view.

Disassemble

Caution:

The piston oil cooling valve is a

spring loaded assembly. Exercise care when

disassembling.

1. Compress valve spring and remove retaining ring (A)

from valve stem.

2. Gradually release spring compression and remove

valve and spring (B) from body.

Assemble

1. Position valve and spring (B) in body.

2. Compress spring until valve stem protrudes from body

and install retaining ring (A).

Figure 6-86. Disassembling or assembling

piston oil cooling

valve

assembly .

cluster gear.

c. Cleaning.

Refer to paragraph 6-2.

d. Inspection.

Refer to paragraph 6-3. Inspect

parts to the limits specified in overhaul standards

(table 6-19).

6-84