Calibrating the Torque
The tool has a tamper proof calibration, a black cover protects the clutch mechanism from involuntary action.
Turn the screw 90 degrees to open the black cover. The clutch will be visible.
Turn the output socket until the clutch is in the position where the adjustment hole is visible.
Using the clutch adjustment key, increase or reduce the torque (“+” and “-” appear on the calibration tool).
Close the cover.