INSPECTION/REPLACEMENT CONTINUED - TM-9-2320-270-20-20414

TM9-2320-270-20-2

TANDEM AXLE HUB, DRUM, AND BEARING ASSEMBLY - CONTINUED

ACTION

REMARKS

ITEM

LOCATION

INSPECTION/REPLACEMENT CONTINUED

WARNING

Some parts are heavy. Be careful when handling them. Lifting equipment is needed

when parts weigh over 50 pounds (23 kg) for a single person lift, over 100 pounds

(45 kg) for a two person lift, and over 150 pounds (68 kg) for a three or more person

lift. Do not try to handle heavy parts without lifting equipment. Keep clear of heavy parts

supported only by lifting equipment. Failure to observe this precaution could cause

serious injury or death of personnel.

With help from assistant, turn over and

Hub (1) and

23.

support on boards as shown.

brakedrum (2)

Screw on part way leaving about 1/2-inch

Inner wheel nut (4)

24. Wheel studs (3)

(1.5 cm) between hub (1) and nut (4).

a. Using cross-peen hammer, drive studs

Ten wheel studs (5)

25. Hub (1) to

down until nuts (4) hit hub (l).

brakedrum (2)

b. Unscrew and take off nuts (4).

c. Using ball-peen hammer and brass

drift, drive out completely.

With help from assistant, take off and

Hub (1)

26. Brakedrum (2)

turn over and support on boards and blocks

as shown.

Place in position.

Brakedrum (2)

27. Hub (1)

CAUTION

Hub and drum must be supported as shown to prevent damage to axle flange studs and

wheel studs.

Using cross-peen hammer, drive in.

Ten wheel studs (5)

28. Brakedrum (2)

to hub (1)

ASSEMBLY

WARNING

Make sure no grease remains on brakedrum and that no grease contacts brake linings.

If linings become contaminated with grease, brakes on that wheel will fail and could

cause serious accident. Contaminated linings cannot be cleaned and must be replaced.

4-932