TM-9-2320-272-24-1

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

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4

JUNE 1998

TM-9-2320-272-24-1 - Page 688 of 1015

TM 9-2320-272-1

3-120. FLOODLIGHT CONTROL SWITCH MAINTENANCE

THIS TASK COVERS:

a. Removal

d. Assembly

b. Disassembly

e. Installation

c. Inspection

INITIAL SETUP:

APPLICABLE MODELS

REFERENCES (TM)

M936/A1/A2

TM 9-2320-272-10

TOOLS

TM 9-2320-272-24P

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

EQUIPMENT CONDITION

MATERIALS/PARTS

l

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

Two locknuts (Appendix D, Item 283)

l

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

Lockwasher (Appendix D, Item 355)

Lockwasher (Appendix D, Item 351)

a. Removal

1.

Remove two locknuts (1) and mounting screws (11) from angle bracket (2) and instrument panel (16).

Discard locknuts (1).

2.

Lower floodlight control switch (12).

NOTE

Tag connectors for installation.

3.

Disconnect four connectors (15) from floodlight control switch (12).

b. Disassembly

1.

Remove screw (7), lockwasher (6), switch lever (8), washer (5), and felt washer (9) from floodlight

control switch (12). Discard lockwasher (6).

2.

Remove nut (4), lockwasher (10), identification plate (3), angle bracket (21, plug (14), and shell (13)

from floodlight control switch (12). Discard lockwasher (10).

1.

Inspect floodlight control switch (12) for breaks and cracks in housing. Replace if housing is broken

or cracked.

2.

Inspect switch lever (8) for breaks and cracks. Replace if broken or cracked.

1.

Install shell (13), plug (14), angle bracket (2), and identification plate (3) on floodlight control

switch (12) with new lockwasher (10) and nut (4).

2.

Install felt washer (9), washer (5), and switch lever (8) on floodlight control switch (12) with new

lockwasher (6) and screw (7).

3-324