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 355 of 1563

TM 9-2815-220-24

COOLING FANS, VANES, FAN HOUSINGS, AND SEALS REPLACEMENT

0054 00

REMOVAL (Continued)

NOTE

20

21

23

18

22

19

A

Front and rear fan tower seal

replacement procedures are

identical.

CAUTION

Do not attempt to pry seal housing

from fan tower: both the seal

housing and fan tower are made of

aluminum and are easily damaged.

6. Remove seal housing (18) from fan

tower (19).

a. Remove six screws (20) with flat

washers (21) securing seal housing (18).

b. Install two mechanical pullers (item 77)

in threaded holes (A) of seal housing.

Alternately tighten pullers to remove seal

housing.

c. Remove and discard gasket (22).

d. Remove seal (23) from oil seal

housing (18).

Discard seal.

INSPECTION

All parts must be inspected with care.

Replace parts if damage or wear exceeds allowable limits.

1. See WP 0028 for Standard Inspection Procedures.

INSTALLATION

1. Install new seal (23) in seal housing (18).

a. Install seal (23) (item 191, WP 0175) in housing (18) with lip of seal towards bottom of

housing and felt towards top.

2. Install seal housing (18) on fan tower (19).

a. Assuring that mating surfaces are clean, place new gasket (22) (item 257, WP 0175) on fan

tower.

b. Install oil seal housing (18).

c. Secure with six screws (20) and flat washers (21).

WP 0054 00-3