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 232 of 779

Remove

valve has since been eliminated and. on those

1. Cut locking wire and remove three cap screws (A) and

flat washers attaching fan drive control valve (C) to

engines so equipped, a cover plate is used to

rear fan drive housing. Discard cap screws.

cover the valve oil passages and will be installed

2. Loosen cap screw (B) until screw is free of threads.

during engine overhaul. The fan tower has been

3. Remove and discard control valve (C) and cap screw

redesigned to eliminate the valve mounting

(B).

4. Remove brass gasket (D). Remove and discard

surface and the need for the cover plate.

mounting gasket.

Install

1. Install new mounting gasket, brass gasket (D), and

cover. Secure cover with four cap screws, flat washers,

Note.

A limited number of engines were

and locking wire.

equipped with a fan control valve. The need for a

Figure 5-77. Removing fan drive control

valve-engines with fan control valve.

5-46