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 376 of 779

Remove

1. Cut locking wire (A).

2. Remove drilled head bolt (B) and lock plate.

3. Remove five slotted nuts (C) and flat washers at-

taching pressure housing cover to pressure housing.

4. Separate and remove cover (D) from housing.

Install

1. Position pressure housing cover (D) on pressure

housing.

2. Install five slotted nuts (C) and flat washers securing

Remove

1. Remove impeller drive shaft (A) from pressure

housing.

2. Cut locking wire and remove four slotted nuts (B) and

flat washers attaching scavenge oil pump inlet scoop on

housing.

3. Remove inlet scoop (C). Do not remove screens.

Install

1. Position scavenge oil pump inlet scoop(C) on pressure

housing.

2. Install four slotted nuts (B) and flat washers securing

inlet scoop on housing and install locking wire securing

cover on housing.

3. Position lock plate on cover and install drilled head

bolt (B).

4. Install locking wire (A) securing nuts.

Figure 6-80. Removing or installing pressure

housing cover (FSN 2815-895-6430

oil pump).

Remove

1. Remove driven impeller (A) from pressure housing.

2. Remove drive impeller (B) from impeller drive shaft.

Install

1. Install drive impeller (B) on impeller drive shaft.

2. Install driven impeller (A) in pressure housing.

Figure 6-81. Removing or installing oil

pump piston cooling drive and

driven impellers.

nuts.

3. Install impeller drive shaft (A) in pressure housing.

Figure 6-82. Removing or installing scavenge

oil pump inlet scoop (FSN 2815-679-4965

oil pump).

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