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 476 of 828

TM 9–2350–311–20–2

8–52

8–12 GUNNER’S SELECTOR SWITCH BOX ASSEMBLY

This task covers:

a.

Removal

b.

Disassembly

c.

Assembly

d.

Testing

e.

Installation

INITIAL SETUP

Test Equipment

Multimeter (item 6, Appx H)

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

Soldering kit (item 13, Appx H)

Materials/Parts

Gasket (item 93, Appx G)

Gasket (item 94, Appx G)

Gasket (item 139, Appx G)

Lockwashers (4) (item 51, Appx G)

Lockwashers (6) (item 52, Appx G)

Lockwashers (5) (item 54, Appx G)

Lockwire (V) (item 32, Appx G)

Packings (3) (item 42, Appx G)

Seals (2) (item 137, Appx G)

Equipment Condition

Disconnect batteries (TM 9–2350–311–10)

GUNNER’S SELECTOR

SWITCH BOX ASSEMBLY

WIRE

100