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 424 of 775

TM 9--2350--311--10

3--24

3--5

HULL MAINTENANCE PROCEDURES — CONTINUED

3--5.5

Adjusting Track Tension — Continued

b. Increasing Track Tension

CAUTION

When increasing track tension, do not let track adjuster extend beyond 3--1/2 inches (8.89 cm)

or track adjuster damage may occur.

NOTE

•

When track adjuster has reached the maximum extended limit of 3--1/2 inches (8.89 cm),

remove one track shoe and readjust track tension.

•

If track sag cannot be taken up, decrease track tension; remove track shoe and adjust.

1

Clean fitting (3).

2

Pump grease (item 20, Appx G) into fitting (3) on track adjuster (4) until correct tension is obtained.

c. Decreasing Track Tension

WARNING

Lubricant is under high pressure. Loosen bleeder plug slowly to avoid injury to personnel.

Open bleeder plug (5) on track adjuster (4) and reduce pressure until tension is released. Tighten

bleeder plug and wipe away excess grease.

3--1/2

INCHES

(8.89 CM)

5

4

3