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 1433 of 1563

TM 9-2815-220-24

REAR FAN DRIVE REPAIR

0168 00

ASSEMBLY

1. Determine shim thickness for [drive] bevel gear shaft (4).

a. With endplay removed from bearing, measure total thickness of bearing from inner race to

outer race.

b. Add shims until a total thickness of 0.7891-inch (20.0431 mm) minimum to 0.7911-inch

(20.0939-mm) maximum is obtained.

c. Old and new shims may be mixed to obtain correct overall thickness.

2. Install bearing (2).

a. Position shims (6) of predetermined thickness over bearing hub of bevel gear shaft (4).

b. Using an arbor press (5), press new ball bearing (2) (item 294, WP 0175) onto bevel gear

shaft (4) with trademark facing outward.

5

4

6

6

4

2

2

3. Install bearing housing (1) over ball bearing (2).

4. Install shaft (3) into bevel gear shaft (4).

2

4

3

1

WP 0168 00-7