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 422 of 775

TM 9--2350--311--10

3--22

Change 6

3--5

HULL MAINTENANCE PROCEDURES — CONTINUED

3--5.4

Maintenance of Air Cleaner — Continued

b. Cleaning

WARNING

•

Wear eye protection. Particles released from air cleaner filters during cleaning could injure

eyes.

•

Air cleaner filters will become contaminated when operating in an NBC environment.

Contaminated air cleaner filters must be handled and disposed of in accordance with

FM 3--3 and FM 3--4.

1

Clean air cleaner filters (8) with compressed air. (Emergency clean by tapping bottom or sides against

flat surface. Do not strike open or sealing edge of air cleaner filters.)

2

Clean air cleaner filter compartments (9).

c. Installation

1

Install air cleaner filters (8) by alining with outlet gaskets to assure proper sealing and secure locking

levers (7).

2

Slide right and left access doors (3 and 5) on air cleaner and secure by pulling locking latches (4 and 6)

down and then up.

3

Install hull ammunition rack (1) and secure with two quick-release pins (2).

4

Reset air cleaner indicator (10) by pushing up on reset button (located on bottom of cylinder).

5

Start engine. If indicator gage reads 25 in. H

2

O or greater, notify unit maintenance.