TM-9-2815-220-24

AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL FOR AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

TM-9-2815-220-24 - Page 1297 of 1563

TM 9-2815-220-24

OIL PUMP REPAIR

0154 00

DISASSEMBLY (Continued)

4. Remove cluster gear (15).

a. Straighten tabs on key washer (16) and remove nut (17) from shaft (18).

b. Remove key washer (16), two ball bearings (19), cluster gear (15), thrust washer (20),

thrust bearing (21), and shaft (18).

Discard key washer, thrust bearing, and two ball

bearings.

5. Remove spur gear (22).

a. Position a brass rod or drift between impellers (23 and 24) through opening in scavenge

housing (25) to hold spur gear shaft (22) stationary.

b. Remove self-locking nut (26), spur gear (22), and gear plate (14).

Discard

self-locking nut (26).

6. Remove level compartment cover (27) from pressure compartment housing (28).

a. Remove three self-locking nuts (29) with flat washers (30) securing cover (27) to housing

assembly (28).

Discard self-locking nuts.

7. Remove two level compartment impellers (31 and 32) from housing (28).

18

32

21

15

22

26

19

17

16

19

20

14

25

28

31

27

30

29

23,24 (hidden)

WP 0154 00-3