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 1001 of 1275

TM 9-2350-311-20-1

11-4 DRIVER’S HATCH COVER AND LOCK COMPONENTS — CONTINUED

b. Installation — Continued

11

12

13

14

15

16

17

Install ball bearing (11) in housing (1 8).

Install housing (18), three flat washers (17), three washers (16), and three

Using handles (14), carefully lower hatch cover (13) to closed position.

Install shaft (10) and elevating handle (9).

Drive in new spring pin (8).

(15).

Install elevating cam (7), two flat washers (6), and two screws (5).

Install chuck (3), new spring pin (2), and six screws (1).

Install new lockWire (4).

11-5 ENGINE COMPARTMENT ACCESS COVER

This task covers:

a. Removal

b. Installation

Tools

General mechanic’s tool kit (item 64, App

X

H)

Adhesive (item 7, Appx D)

Lockwashers (12) (item 89, Appx G)

Seal (item 155, Appx G)

11-22