ALFRA Rotabest 100, Руководство по эксплуатации, Страница: 14 / 32

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During the drilling process the cutter should be cooled permanently. Optimal cooling is possible by
internal cooling with the coolant unit.
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Do not stop the motor during the drilling process. After the process draw the cutter back with running
motor.
Remove chips with chip-remover. Do not touch with bare hands. Danger of injury!
How to work with TCT core cutter type AL
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Mount TCT core cutter with keyway on tool holder AL, MT3 and tighten set screw firmly.
How to work with twist drills
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The drill chuck with MT 3 shank is only to be used with twist drills.
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Insert drill chuck with adaptor in the arbor.
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Insert twist drill in drill chuck and tighten drill chuck key.
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Twist drills with MT 3 shank can be inserted directly into the arbor.
Tapping
The tapping attachment automatically switches over to left-hand rotation as soon as the spindle is turned back.
The motor can be continuously adjusted on the slide by releasing the Allan screw
(for a maximum enlargement of the stroke when using twist drills, drill chucks and
tapping attachments).
Cleaning and care
Pull plug prior to cleaning to avoid injuries by unintentional switching on.
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Clean the outside of the motor with dry compressed air.
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Check connecting lines on damages.
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Clean and grease sliding surfaces regularly. Should lateral play arise by wear of the dovetail guide this
can be adjusted by adjusting the laterally positioned set screws (K).
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Carbon brushes should be replaced after appr. 250 hours running time.
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After the work is finished we recommend to store the Metal Core Drilling Machine in the transport case in
a lying position.