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SERVICE INSTRUCTION FOR PRINT-ASSY HR 2831/33 HR 2833 â turn the poti-gear to the MAX. left position. â mount the print-plate in the housing. â turn the speed-knob to the most right position for one time; the poti-gear is now right position. HR 2831 â turn the poti-gear to the MAX. left position. â remove the poti-gear. â mount the print-plate in the housing. â turn the speed-knob to pos. 2 put a screw driver to trim the speed to 1250 rpm.
SERVICE INSTRUCTION FOR REMOVING THE PULSE KNOB 1. put the speed knob to the most left position. 2. take a small screw driver and press it between speed knob and pulse knob.
3. turn the screw driver to pull the knob a little bit out of the power unit (a), set the screw driver deeper into the created hole (b) and lift it (c).