Thermo Protection, Working With Annular Cutters (Weldon Shank), Working With Twist Drills - ALFRA ROTABEST 60 RL-E Bedienungsanleitung

Thermo protection
The thermo protection stops the motor when it's overheated automatically. Afterwards you need to let it run with a
high rotation speed at the idle speed for about two minutes.
How to work with annular cutters (Weldon shank)
 Mount Tool Holder AMK 3 in arbor.
 Push ejector pin (center pin) through head of annular cutter.

Mounting of ROTABEST cutter according to drawing. The setscrew must be positioned in the center of
the lateral flat side of the Weldon shank. Fix tightly.
 First place annular cutter with ejector pin on a marked center or marking.
 Spot-drill until the entire cut edge is formed as a circle.
Drilling with ALFRA ROTABEST cutters does not require much expenditure of force.
 During the drilling process the cutter should be cooled permanently. Optimal Cooling is possible by
internal cooling with our coolant unit.
 Do not stop the motor during the drilling process. After the process draw the cutter back with running
motor.
 Remove chips and core after each drilling.
Remove chips with chip-remover. Do not touch with bare hands. Danger of injury!
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