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 1077 of 1275

TM 9-2350-311-20-1

12-6 AIR OUTLET ORIFICE CONNECTORS

This task covers:

a. Removal

b. Installation

ApplicabIe Configurations

.

Retaining ring pliers (item 40, Appx H)

M109A4/M109A5

Tools

Lockwashers (3) (item 192, Appx G)

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

Retaining ring (item 14, Appx G)

a. Removal

1 Remove clamp (1) and hose assembly (2) from coupling (3).

2 Remove coupling (3).

NOTE

Step 3 applies to connector in crew compartment.

3 Remove two screws (4), two iockwashers (5), and orifice connector and bracket (6). Discard iockwashers.

4 Remove retaining ring (7) and connector (8). Discard retaining ring.

NOTE

Nut is in crew compartment only.

5 Remove screw (10), Iockwasher (11 ), nut (9), and bracket (12). Discard Iockwasher.

b. Installation

NOTE

Nut is in crew compartment only.

1 Install bracket (12), new Iockwasher (11 ), screw (10), and nut (9).

2 Install connector (8) and new retaining ring (7).

NOTE

Step 3 applies to connector in crew compartment.

3 Install orifice connector and bracket (6), two new Iockwashers (5), and two screws (4).

4 Install coupling (3).

12-16

Materials/Parts