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• Basic Procedures  TC39 Series Changer Operation Instructions 
Place wheel, face-down, on center support ensuring anti-rotation pin inserts one lug 
hole. 
 
Insert wheel clamp, press down and twist clockwise 1/4 turn to lock into center 
support. 
 
The clamping shaft is equipped with a quick clamp cone to speed clamping. Simply 
activate the Quick Clamp, drop the cone into place then hand tighten.