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 147 of 775

TM 9–2350–311–10

Change 2

2–55

Table 2–1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES

FOR M109 SELF-PROPELLED HOWITZER

Location

Item

No.

Interval

Item to Check/

Service

Crewmember

Procedure

Not Fully Mission

Capable If:

35

During

Powerplant

DRIVER

CAUTION

If you notice a shrill whine (above normal tur-

bine whine), rubbing, vibrations, and/or a sud-

den increase in exhaust smoke, shut off en-

gine and notify unit maintenance.

Check for unusual noises or vibrations.

Performance or

function is inade-

quate or there

are unusual

noises or vibra-

tions.

36

During

Recuperator

Assembly

CHIEF OF SECTION

WARNING

Do not attempt to remove drain plug complete-

ly. Hydraulic fluid in recuperator is under high

pressure.

CAUTION

•

If drain plug is loosened for draining fluid,

check for leaks after tightening.

•

To prevent damage to gasket cover of cover,

loosen cap screws to stop pins before rotating

cover.

DRAIN

PLUG

CAP

SCREW

COVER