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 179 of 775

TM 9-2350-311-10

Item

No.

72

Interval

Weekly

Table 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES

FOR M109 SELF-PROPELLED HOWITZER - CONTINUED

Location

Item to Check/

Service

NBC System

M 109A4/M109A5)

Crewmember

Procedure

CHIEF OF SECTION AND CREW

WARNING

NBC contaminated filters must be handled us-

ing adequate precautions and must be dis-

posed of by trained personnel.

a. Open spring clip (1) on M2A2 air purifier (2).

Turn NBC switch (3) on driver’s fixed instrument

panel (4) to ON position. Ensure NBC indicator

light (5) lights. Place switch (6) on NBC control

box assembly (7) to ON position. Ensure indica-

tor light (8) lights.

b. Inspect hoses for leaks, splits, and abrasions.

c. Connect M25A1 masks to all six stations and

check that air is entering all M25A1 masks.

Not Fully Mission

Capable If:

Change 2 2-85