TM-9-2320-361-34

2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

MAY 1992

TM-9-2320-361-34 - Page 675 of 764

TM 9-2320-361-34

17-13. PERSONNEL

HEATER

IGNITER

AND IGNITION CONTROL UNIT REPLACEMENT

(Contd)

I

c. Ignition Control Unit Installation

1. Install new lockwasher (6) and ignition control unit (4) on heater housing (5) with three new

screws (3).

2. Install two ignition control leads (2) on flame detector switch (7) with two new screw-assembled

lockwashers (1).

3. Install ignition control lead (8), receptacle lead (9), and thermostat lead (10) on overheat switch (7)

with new nut-assembled lockwasher (6).

I

d. Igniter Installation

1. Install igniter tube (17) in blower housing (15) with new screw (16).

CAUTION

Igniter is fragile. Use care when removing igniter. Failure to do

so may result in damage to equipment.

2. Install new igniter (16) in igniter tube (15) and press and turn 1/4-turn to right to hold in place.

3. Install igniter hatch cover (17) on heater housing (5) and hold in place with two fly screws (13).

4. Connect igniter leads (19) and (20) on ignition control unit (4) and igniter hatch cover (17).

5.

Install new lockwasher (21), ground strap (22), and receptacle ground lead (23) on ignition control

unit (4) with nut (18).

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