TACHOMETER/HOURMETER REMOVAL/INSTALLATION.

TM 9-2320-279-20-1

Electrical System Maintenance Instructions (Cont)

7-27. TACHOMETER/HOURMETER REMOVAL/INSTALLATION.

This task covers:

c. Follow-on Maintenance

a. Removal

b. Installation

INITIAL SETUP

References

Models

None

All

Equipment Condition

Test Equipment

None

Condition Description

TM or Para

Instrument panel removed.

Para 7-19

Special Tools

None

Special Environmental Conditions

None

Supplies

Tags, identification, Item 48, Appendix C

General Safety Instructions

None

Personnel Required

MOS 63S, Heavy wheel vehicle mechanic

a. Removal.

(1) Pull light socket (1) from

tachometer/hourmeter (2).

NOTE

Tag and mark wires before disconnecting.

(2) Loosen four screws (3) and disconnect four

wires (4) from terminal strip (5).

(3) Remove two nuts (6), lockwashers (7), and

wire (8).

(4) Remove bracket (9) and

tachometer/hourmeter (2) from instrument

panel (10).

Installation.

(1) Install tachometer/hourmeter (2) and

bracket (9) on instrument panel (10).

(2) Install wire (8), two lockwashers (7), and

nuts (6) on tachometer/hourmeter (2).

(3) Connect four wires (4) to terminal strip (5) on

tachometer/hourmeter (2). Tighten four

screws (3).

(4) Push light socket (1) in

tachometer/hourmeter (2).

c. Follow-on Maintenance.

(1) Install instrument panel (para 7-19).

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

(3) Check operation of tachometer/hourmeter (TM 9-2320-279-10).

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

END OF TASK

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