CALIBRATION
1: The vehicle must be fully loaded. For best results, calibrate with a loaded weight within 1500lbs or 750kgs of
your typical axle group weight (DO NOT calibrate empty!)
2: Using a certified in-ground scale, obtain a loaded weight for the axle group attached to the gauge.
3: Park on a level surface. Shift the transmission to neutral and set the parking brakes.
4: Chock the wheels to prevent unexpected vehicle movement.
5: Release the parking brakes.
6: Make sure the Height Control Valve (HCV) has fully inflated the air bags. If needed, briefly dump the air from the
suspension and allow the HCV to refill the system.
7: Pull the red push/pull valve so that it is in the fully open position.
8: Using a flathead screwdriver, turn the calibration screw on the dial face until the gauge matches the certified
axle group weight.
CALIBRATION
SCREW
PUSH/PULL
VALVE
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