TM-9-2320-272-24-2

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 2 OF 4

JUNE 1998

TM-9-2320-272-24-2 - Page 450 of 991

TM 9-2320-272-24-2

3-417. CHEMICAL AGENT ALARM MOUNTING BRACKET KIT REPLACEMENT

THIS TASK COVERS:

a Chemical Alarm Wiring Harness Removal c.

Detector and Alarm Bracket Installation

b. Detector and Alarm Bracket Removal

d.

Chemical Alarm Wiring Harness Installation

INITIAL SETUP:

APPLICABLE MODELS

All

TOOLS

General mechanic’s tool kit (Appendix E, Item 1)

MATERIALS/PARTS

Six locknuts (Appendix D, Item 299)

Lockwasher (Appendix D, Item 353)

Electrical tape (Appendix C, Item 73)

REFERENCES (TM)

TM 9-2320-272-10

TM 9-2320-272-24P

EQUIPMENT CONDITION

• Parking brake set (TM 9-2320-272-10).

• Hood raised and secured (TM 9-2320-272-10).

• Battery ground cables disconnected (para. 3-126).

• Driver’s seat removed (para. 3-283).

a. Chemical Alarm Wiring Harness Removal

NOTE

The cable is provided in two sections. A short wire harness with a

screw-on receptacle completes the circuit for the detector and

alarm units to the main power source. This harness is only

supplied when both chemical detector and alarm units are issued

to the field.

1.

Remove nut (4) and receptacle (1) from detector bracket (3).

2.

Remove screw (6), clamp (7), and cable (2) from locations A, B, C, D, E, and F along

left

side fender (5)

and underside of vehicle.

3.

Remove six clamps (7) from cable (2).

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