Horn Current Adjustment

Horn Current Adjusting Screw:

1. Current limit-4.5 to 5.5 amperes at 12 volts.
2. Adjustments should be made in one-quarter turn (90 degree) increments.
3. Loosen adjusting screw locknut.
4. Increase current by rotating adjusting screw counterclockwise.
5. Decrease current by rotating adjusting screw clockwise.

Cold Weather Horn Current Adjustment
If the horn fails to sound in cold weather, it is possible that the current limit is set too low, although still within the amperage limit (4.5 to 5.5 amperes at 12 volts). Turn the adjusting screw one-quarter turn (90 degrees) counterclockwise to increase current draw until the horn sounds.

IMPORTANT
^ This adjustment should not be made unless the horn fails to sound in cold weather. A current increase on a properly functioning horn could result in damage to the horn.