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 959 of 1275

TM 9-2350-311-20-1

10-16 IDLER WHEELS AND HUBS —

CONTINUED

b. Installation — Continued

8

9

10

11

12

13

14

install new preformed packing (15) and static spring (11 ) in hub assembly (23).

Install grease fitting (5) in cap (6).

Install relief valve (7).

Install cap (6), six flat washers (10), and six screws (9). Torque screws to 12Ib-ft (16 N•m).

Fill hub assembly (23) with grease until air-free grease flows from relief valve (7).

Lubricate threads with grease or oil.

Install inner idler wheel (4), spacer (3), and outer idler wheel (2).

NOTE

FOLLOW-ON MAINTENANCE:

Install track (para 10-6 or 10-7)

10-42