TM-9-2350-311-20-1

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS

AUGUST 1994

TM-9-2350-311-20-1 - Page 945 of 1275

TM 9-2350-311 -20-1

10-11 ROAD WHEEL HUBS — CONTINUED

c. Assembly

NOTE

• Do not prepack bearings with grease.

Ž Seal mating surface in hub must be free of grease, dirt, and oil prior to assembly.

1

Install inner bearing cup (16) using inner bearing cup replacer and handle.

2 Install inner bearing cone (14).

Be careful not to damage or deform inner hub seal or seal lip when installing inner hub

seal in hub. Do not press on pins when installing inner hub seal.

3 Install new inner hub seal (13) using seal replacer and handle. Ensure inner hub seal is flush with road wheel

hub (4).

4 Using outer bearing cup replacer and handle, install outer bearing cup (17).

5 Install outer bearing cone (15).

6 Assemble hub (4), new key washer (10), and nut (9) on spindle (12).

10-28

CAUTION