TM-9-2350-311-20-1

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

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS

AUGUST 1994

TM-9-2350-311-20-1 - Page 1016 of 1275

TM9-2350-311-20-1

11-11 PERISCOPE M45 COVER, DOORS, AND SLEEVES

This task covers:

a. Removal

b. Disassembly

c. Assembly

d. Installation

Tools

General mechanic’s tool kit (item 64, Appx H)

Adhesive (item 5, Appx D)

Gasket (item 120, Appx G)

Gaskets (3) (item 158, Appx G)

a. Removal

1 Remove six screws (1), cover (2), and gasket (3) from outside hull. Discard gasket.

2 Remove six wing nuts (4), six supports (5), and six rods (6) from inside hull.

3 Remove six screws (7), six flat washers (8), and three periscope sleeves (9) from inside hull.

b. Disassembly

1 Remove three

2 Remove three

3 Remove three

pins (10) and three springs (11 ).

rings (12), three pins (13), and three springs (14).

doors (15) and three gaskets (16). Discard gaskets.

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