TM-9-2320-279-20-1

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 1 OF 3

TM-9-2320-279-20-1 - Page 663 of 985

TM 9-2320-279-20-1

Electrical System Maintenance Instructions (Cont)

7-28. SYSTEM BUZZER REMOVAL/INSTALLATION.

This task covers:

a. Removal

c. Follow-on Maintenance

b. Installation

INITIAL SETUP

Models

All

Test Equipment

None

Special Tools

None

Supplies

Tags, identification, Item 48, Appendix C

Personnel Required

MOS 63S, Heavy wheel vehicle mechanic

References

None

Equipment Condition

TM or Para

Condition Description

Para 7-19

Instrument panel removed.

Special Environmental Conditions

None

General Safety Instructions

None

a. Removal.

NOTE

Tag and mark wires before disconnecting.

(1)

Disconnect six wires (1) from system buzzer (2).

(2)

Remove two nuts (3), washers (4), screws (5),

and system buzzer (2) from instrument panel (6).

b. Installation.

(1)

Install system buzzer (2) with two screws (5),

washers (4), and nuts (3) on instrument

panel (6).

(2)

Connect six wires (1) to system buzzer (2).

c. Follow-on Maintenance.

(1)

Install instrument panel (para 7-19).

(2)

Start engine (TM 9-2320-279-10).

(3)

Check operation of OIL-WATER and AIR

indicator warning system buzzer

(TM 9-2320-279-10).

(4)

Shut off engine (TM 9-2320-279-10).

END OF TASK

7-94