When torquing down the axle nut after the proper belt tension has been set (deflection), the welded axle nut will move to the low side of adjuster cam
This movement will allow the belt to lose adjustment
Place this tool over the welded nut on left side with the neck portion of tool resting over the swingarm
Hand screw the adjusting screw to take up any slack in tool
Torque the axle nut from the right side knowing that the welded nut will not turn allowing the belt