Hunter GSP9720JLR Operation Instructions Manual page 133

GSP9720JLR Wheel Balancer Operation Instructions
With the hood in the raised position, verify that the outer arm is in the "home" position
and that the arm and hood are not moving. Tap the foot pedal once or press "Enter
Cal Step."
Place the calibration tool on the spindle shaft using the spindle shaft slot closest to
the end of the calibration tool and hold in an upright position, flat against the hub.
NOTE: The calibration tool should be in full contact with the hub
face, but will allow a gap to exist between the tool and the
hub face.
Calibration and Maintenance x 125