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. 
GSP9720JLR Wheel Balancer Operation Instructions  Calibration and Maintenance 
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