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 970 of 1275

TM 9-2350-311-20-1

10-22 FINAL DRIVE ASSEMBLIES

This task covers:

a. Removal

b. Inspection

c. Installation

Tools

General mechanic’s tool kit (item 64, Appx H)

Eye bolt (item 5, Appx H)

Guide pins (2) (item 38, Appx H)

Lifting sling (item 58, Appx H)

Socket wrench set (item 56, Appx H)

Torque multiplier (item 37, Appx H)

Torque wrench (item 71, Appx H)

Materials/parts

Gasket (item 121, Appx G)

LockWashers (14) (item 93, Appx G)

Lockwashers (12) (item 96, Appx G)

Lubricating oil (item 45, Appx D)

Zinc chromate primer (item 54, Appx D)

Personnel Required

Two

Equipment Conditions

Final drive sprocket and hub removed (para 10-21)

a. Removal

NOTE

Final drive and bearing retaining nut may be inspected while installed in vehicle. See

inspection procedure below.

1 Remove screw (1), washer (2), and clamp (3).

2 Unscrew tube hex nut connector (4).

3 Remove vent tube (5).

10-53