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How to work with annular cutters
• Push ejector pin (center pin) through head of annular cutter.
• Core drills with Weldon shank are tightened with clamping screws (DIN 913) on both clamping surfaces.
• First place annular cutter with ejector pin on a marked centre or marking.
• Set the cutter and spot-drill, until the entire cut edge is formed as a circle.
• During the drilling process, the cutter should be cooled permanently. Optimal cooling is possible by internal
cooling with our coolant unit.
• During the drilling process, do not stop the motor. After the drilling process, draw back the cutter with running
motor.
• Remove chips and core after each drilling.
Remove chips with chip-remover. Do not touch with bare hands. Danger of injury!
How to work with twist drills
• The drill chuck with Weldon shank is only to be used with twist drills up to a diameter of 13 mm.
• Insert drill chuck with MT2 tool holder in the drill spindle.
• Insert twist drill in drill chuck and tighten.
Cleaning
Pull plug prior to cleaning. Danger of injury by unintentional switching on.
• Clean the outside of the motor by means of dry compressed air.
• Check connecting lines on damages.
• Clean and grease sliding surfaces regularly.
• Carbon brushes should be replaced after appr. 250 hours running time.
• After the work is finished we recommend to store the metal core drilling machine in the transport case in a
lying position.
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