Horn: Adjustments

Horn Adjustment:

Adjust
Turn adjusting screw clockwise to increase current or counterclockwise to decrease current until specified current is reached. Care must be taken not to turn the adjusting screw too far. Turn screw 1/4 of a turn at one time. If adjustment loosens the screw excessively, it may be staked with a punch.

Cold Weather Adjustment
If horn fails to operate in cold weather, it is possible that current limit is set too low, although still within the (4.5 and 5.5) ampere limit (each horn) at 12.0 volts.

NOTICE: This adjustment should not be made unless horn fails to operate. A current increase on a properly operating horn can result in complete malfunction of the horn.
1. To increase current, rotate adjusting screw in clockwise direction.
2. To decrease current, rotate adjusting screw in counterclockwise direction.
3. Current limit: 4.5 to 5.5 amperes at 12 volts.
4. Adjustments should be made at 90 degree intervals.