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 703 of 828

TM 9–2350–311–20–2

Change 2

18–35

18–7 M42 TANK PERISCOPE

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

Lockwashers (3) (item 58.1, Appx G)

Lockwashers (5) (item 72, Appx G)

Sealing compound (item 28, Appx D)

Equipment Condition

Cover assembly removed (para 5–15)

References

TM 9–2350–311–10

TM 750–116

a.

Removal

1

Remove five cap screws (1) and five lockwashers (2). Discard lockwashers.

2

Apply pressure to free two straight pins (3) and lift off M42 tank periscope (4).

3

1

2

4