To install the SurePressure pressure marking system, turn the pressure adjustment knob counterclockwise until it stops. Be sure to avoid forcing the knob too far in either direction, as it may become stuck. Set the SurePressure counter to zero, then feed the pressure adjustment knob through the rubber belt. Attach the rubber belt to the SurePressure gear. Align the small screw on the inside of the gear with the groove that is cut into the SurePressure counter post and slide the gear into place.