TM-9-2320-273-20

TRUCK TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE

NOVEMBER 1980

TM-9-2320-273-20 - Page 664 of 1500

TM 9-2320-273-20

ELECTRIC HORN AND CAB HEATER CONTROL.

5-67. HORN BUTTON MAINTENANCE (Continued).

LOCATION/lTEM

ACTION

REMARKS

A. REMOVAL (Continued).

7. Three screws (6).

I

8. Base plate (5).

I

Loosen and remove.

Remove.

B. INSTALLATION.

9.

10.

11.

12.

13.

14.

15.

16.

17.

Base plate (5).

Three screws (6).

Brass cup (4).

Spring (3) and retainer

(2).

Horn button (1).

Horn relay (7).

Hinged panel (8).

Three quarter turn

screws (9).

Batteries.

C. OPERATIONAL CHECK.]

18. Horn button (1).

Place in steering wheel.

Screw in and tighten.

Install.

Install over brass cup.

Install.

Install.

Raise into position.

Tighten.

Connect (refer to para 5-37 B).

Press. Verify that horn

operates.

Push down and turn clockwise.

5-240