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 554 of 828

TM 9–2350–311–20–2

12–12

Change 2

12–3 CUPOLA COVER, BODY, AND HANDLE — CONTINUED

c.

Assembly — Continued

NOTE

Step 14 applies to cupola covers without outside handle.

14

Install cupola cover handle (15) using two new lockwashers (14) and two machine bolts (13).

WARNING

Adhesives can burn easily, can give off harmful vapors, and are harmful to skin and clothing. To

avoid injury or death, keep away from open fire and use in well-ventilated area. If adhesive gets on

skin or clothing, wash immediately with soap and water.

NOTE

If commander’s cupola does not have drain holes perform step 15. If commander’s cupola has drain

holes perform step 15.1.

15

Apply adhesive to new cover seal (12) and cupola cover (1). Allow to set 15 minutes then attach cover seal

to cupola cover.

15.1

Apply epoxy adhesive to new gasket (12) and cupola cover (1). Allow to set 15 minutes than attach gasket

to cupola cover.

NOTE

Perform step 16 for commander’s cupola with hook latch assembly or steps 16.1 through 16.3 for

commander’s cupola with knob latch assembly.

16

Install straight pin (11) and new spring pin (10).

13

12

10

11

1

14

15