117. HORN.
a. Description. Horn is mounted to headlight bracket by means of four bolts, lock washers, and nuts. One horn terminal is connected with operating button, and other terminal is connected to No. 4 ignition and light switch terminal ([fig. 73]).
b. Adjust. Tone adjusting screw is located in rear side of horn. If horn fails to operate and moving the adjusting screw does not remedy the trouble, horn must be replaced. NOTE: Do not change position of the adjusting screw located in center of diaphragm.
118. WIRING.
a. Cable System. Since ignition and lights are controlled by the ignition and light switch, all wires terminate at the ignition and light switch. Cables for wire protection are used, making it necessary to replace cables rather than individual wires. A study of figure 73 will be helpful when removing or installing any of the wiring cables. Also study figures 78 and 79 and note how cables are arranged on frame, and how they lead to the switch panel.
b. Remove and Install Cables. When it becomes necessary to replace wiring cables leading to the ignition and light switch, both fuel and oil tanks must be removed (par. [107]) and instrument panel cover removed (par. [119]) for accessibility.
Section XXIV
INSTRUMENT PANEL
| Paragraph | |
|---|---|
| Panel cover | [119] |
| Indicator lights | [120] |
| Speedometer head | [121] |