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 663 of 764

TM 9-2320-361-34

I

17-8. ENGINE COOLANT HEATER FUEL TUBE AND PREHEAT RESISTOR REPLACEMENT

THIS TASK COVERS:

a.

Removal

b. Installation

INITIAL SETUP

APPLICABLE MODELS

MATERIALS/PARTS

All

Sleeve (Appendix

F,

Item 262)

TEST EQUIPMENT

REFERENCES (TM)

Multimeter (Appendix B, Item 3)

TM 9-2320-361-34P

TOOLS

General mechanic’s tool kit

(Appendix B, Item 1)

Tool kit, electrical (Appendix B, Item 2)

EQUIPMENT CONDITION

Engine coolant heater overheat switch and igniter

removed (para. 17-7).

NOTE

Tag wires for installation,.

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a. Removal

1. Remove two screws (1), bracket (2), flange (3), and tapping plate (4) from heater housing (15).

2. Remove grommet (14) from hole (13) in heater housing (15) and slide up on lead (10).

3.

Remove nut-assembled lockwasher (5), screw-assembled lockwasher (9), and lead (10) from pre-

heater resistor (8).

4. Remove fuel tube (11) with preheat resistor (8) from burner (12).

5. Remove sleeve (6), nut (7), and preheat resistor (8) from fuel tube (11). Discard sleeve (6).

1. Install preheater resistor (8), nut (7), and new sleeve (6) on fuel tube (11).

b. Installation

2.

Install fuel tube (11) with preheater resistor (8) on burner (12).

3.

Insert lead (10) through hole (13) in heater housing (15) and install on preheater resistor (8) with

screw-assembled lockwasher (9) and nut-assembled lockwasher (5).

4. Install grommet (14) in hole (13) on heater housing (15).

5.

Position tapping plate (4), flange (3), and bracket (2) on heater housing (15) and install with two

screws (1).

17-20