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 484 of 828

TM 9–2350–311–20–2

8–60

Change 2

8–13 POWER RELAY BOX ASSEMBLY

This task covers:

a.

Removal

b.

Disassembly

c.

Assembly

d.

Installation

INITIAL SETUP

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

Materials/Parts

Gasket (item 101, Appx G)

Gasket (item 102, Appx G)

Gasket (item 179, Appx G)

Gaskets (2) (item 103, Appx G)

Lockwasher (item 55, Appx G)

Lockwashers (8) (item 53, Appx G)

Lockwashers (4) (item 54, Appx G)

Lockwashers (2) (item 56, Appx G)

Lockwashers (5) (item 64, Appx G)

Lockwashers (8) (item 76, Appx G)

Lockwashers (6) (item 78, Appx G)

Lockwashers (2) (item 87, Appx G)

Equipment Condition

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

NBC power switch box removed on M109A4/M109A5

howitzers (para 17–4)

POWER

RELAY BOX

ASSEMBLY

WIRE

100

WIRE

148

WIRE

645

WIRE

104