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 537 of 1275

TM 9-2350-311-20-1

5-8 AIR BOX HEATER (ENGINE MODEL 7083-7396) — CONTINUED

b.

Assembly/lnstallation

1

2

3

4

5

Install fuel injection nozzle (9) and fuel igniter (8).

Install new gasket (7) and air box heater (2) with two new Iockwashers (6) and two bolts (5).

Connect pump and motor-to-air box heater hose assembly (4) to heater (2).

Connect coil assembly-to-air box heater lead assembly (3) to heater (2).

Connect air box heater-to-solenoid tube assembly (1) to heater (2).

5-9 AIR PUMP (ENGINE MODEL 7083-7396)

This task covers:

a. Removal

b. Installation

Tools

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

Torque wrench (item 72, Appx H)

Lockwasher (item 89, Appx G)

Batteries disconnected (para 8-28)

5-16

Equipment

Conditions

Materials/Parts