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 516 of 991

TM 9-2320-272-24-2

3-436. CONVOY WARNING LIGHT RESISTOR AND LEADS REPLACEMENT

THIS TASK COVERS:

a. Removal

b. Installation

APPLICABLE MODELS

REFERENCES (TM)

All

TM

9-2320-272-10

TOOLS

TM 9-2320-272-24P

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

EQUIPMENT CONDITION

MATERIALS/PARTS

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

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

Two lockwashers (Appendix D, Item 406)

Tiedown strap (Appendix D. Item 691)

Two lockwashers (Appendix D, Item 418)

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

1.

2.

Note routing of all leads for installation.

Disconnect leads (1) and (2) from warning light switch (3).

Remove tiedown strap (27) from front main wiring harness (21) and leads (17) and (20). Discard

tiedown strap (27).

NOTE

Assistant will help with step 3.

3.

4.

5.

6.

7.

8.

9.

Remove two screws (30), washers (31), lockwashers (4), retainer (29), and grommet (7) from

firewall (10). Discard lockwashers (4).

Pull leads (1) and (2) through hole in firewall (10).

Remove four screws (5), clips (6), and leads (2), (9), (16), and (28) from resistor (8).

Remove two screws (15), lockwashers (14), lead (28), and resistor (8) from tirewall (10). Discard

lockwashers (14).

Disconnect lead (17) from high-beam selector switch (18).

Disconnect leads (11) and (13) from circuit breaker (12).

Remove nut (24), lockwasher (23), and wires (25) and (26) from starter solenoid (22). Discard

lockwasher (23).

10.

Disconnect lead (19) from connector (20).

NOTE

Tag all leads for installation.

3-l124