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 374 of 779

Remove

1. Cut locking wire (A).

2. Remove two slotted nuts (B) and flat washers at-

taching oil pickup elbow to pump housing.

3. Remove pickup elbow (C) from housing.

4. Remove five slotted nuts (D) and flat washers at-

taching scavenge housing cover.

5. Remove housing cover (E) by tapping cover gently to

loosen cover from locating dowel pins.

Install

1. Position scavenge housing cover (E) on scavenge

housing dowel pins.

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

housing cover (E) to housing.

3. Position pickup elbow (C) on pump housing.

4. Install two slotted nuts (B) and flat washers securing

elbow (C) to housing

5. Install locking wire (A) securing nuts.

Figure 6-76. Removing or installing scavenge

housing cover and oil pickup elbow

(FSN 2815-895-6430 oil pump).

Remove

1. Slide two scavenge driven impellers (A) from impeller

shafts.

2. Remove driven impeller shaft (B) from scavenge

housing.

3. Slide scavenge drive impeller (C) from impeller drive

shaft.

4. Remove two slotted nuts (D) and flat washers.

Separate and remove scavenge housing from pressure

housing.

Install

1. Position scavenge housing on pressure housing. Install

two slotted nuts (D) securing scavenge housing on

pressure housing.

2. Slide scavenge drive impeller (C) on impeller drive

shaft.

3. Install driven impeller shaft (B) in scavenge housing.

4. Slide two scavenge driven impellers (A) on impeller

shafts.

Figure 6-77. Removing or installing oil

pump scavenge driven impellers,

driven impeller shaft, and

scavenge housing.

6-8 0