Cold Weather Adjustment
Horn 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) A limit at 12.0 volts for each horn.
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.
ADJUST
1. To increase current, rotate adjusting screw in clockwise direction.
2. To decrease current, rotate adjusting screw in counter-clockwise direction.
3. Current limit - 4.5 to 5.5 amperes at 12 volts.
4. Adjustments should be made at 90 degree intervals.