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 456 of 991

TM 9-2320-272-24-2

3-417. CHEMICAL AGENT ALARM MOUNTING BRACKET KIT REPLACEMENT (Contd)

d. Chemical Alarm Wiring Harness Installation

1.

Insert wiring harness receptacle (1) into detector bracket (3) and install with nut (4).

2.

Insert split, tinned ends of alarm unit connector wire (8) up through grommet (6) and floor (7) and

tape tinned ends together for protection. Tinned ends will connect to alarm unit.

3.

Connect harness cable positive wire (11) to wire (9) from wiring harness (2).

4.

Position clamp (12) around harness cable positive wire (11).

5.

Install chemical detector ground wire (15), main harness ground wire (14), and clamp (12) on

protective control box (10) with new lockwasher (13) and screw (16).

NOTE

Six clamp positions are provided to support a split cable harness

routing to the underside of the vehicle.

6.

Position six clamps (18) over harness cable (2) and install at cable clamp locations A, B, C, D, E, and

F along left side fender (5) with six screws (17). Remove slack in cable (2) for tightening.

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