TM-9-2350-311-10

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

TECHNICAL MANUAL; OPERATOR’S MANUAL

NOVEMBER 1994

TM-9-2350-311-10 - Page 158 of 775

TM 9-2350-311-10

Item

No.

44

Interval

After

Table 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES

FOR M109 SELF-PROPELLED HOWITZER - CONTINUED

2-64 Change 2

Location

Item to Check/

Service

Final Drive

Sprockets (Cont)

Crewmember

Procedure

DRIVER

2. Visually check wear marks (5) on tooth (6). If

wear mark disappears, notify unit mainte-

nance.

c.

Check T-154 track sprocket teeth for excessive

wear. Visually check wear marks (5) on two

teeth (6).

Jot Fully Mission

Capable If:

Near mark (5) on

final drive sprock-

et is not visible.

One or more

sprocket teeth

are worn into

edge of wear in-

dicator.

One or more

sprocket teeth

are showing ex-

cessive wear.