TM-9-2350-311-20-2

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

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS

DECEMBER 1993

TM-9-2350-311-20-2 - Page 466 of 828

TM 9–2350–311–20–2

8–42

Change 2

8–9

NBC POWER LEAD ASSEMBLY

This task covers:

a.

Removal

b.

Disassembly/Assembly

c.

Testing

d.

Installation

INITIAL SETUP

Applicable Configuration

M109A4/M109A5 howitzers

Test Equipment

Multimeter (item 6, Appx H)

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

Equipment Condition

Disconnect batteries (TM 9–2350–311–20–1)

SECTION

CHIEF’S

HEATER

CANNONEER NO. 1’S

HEATER

GUNNER’S

HEATER

ASSISTANT

GUNNER’S

HEATER

NBC

POWER

LEAD

ASSEMBLY

NBC CONTROL

BOX ASSEMBLY

POWER

RELAY BOX

ASSEMBLY

M2A2 AIR PURIFIER

WIRE 136

WIRE 135

WIRE 136D

WIRE 136B

WIRE 136C