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 370 of 779

b. Disassembly.

Disassemble oil pump (fig. 6-

66) following instructions which accompany

figures 6-67 through 6-86.

Figure 6-66. FSN

oil pump

assembly as removed from engine.

Remove

1. Remove oil pump pressure relief valve body (A).

2. Separate pressure relief valve (B), outer valve spring.

and inner valve spring from valve body.

3. Remove cap screw (C) and flat washer.

Install

1. Install cap screw (C) and flat washer.

2. Position inner valve spring, outer valve spring, and

pressure relief valve (B) in oil pump pressure relief

valve body (A).

3. Install assembled valve body (A) in pump housing.

Figure 6-68. Removing or installing oil pump

pressure relief valve.

Figure 6-67. Removing or installing locking

wire securing oil pump pressure relief

valve and piston cooling control valve bodies.

Figure 6-69. Removing or installing piston

cooling control valve.

6-76