OpERATing TipS
• First, place annular cutter with ejector pin on a marked center or marking. Drilling with ALFRA ROTABEST
cutters does not require much expenditure of force. 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 process, cutter draw 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!
cLEAning
• Danger of injuries by unintentional switching on. Pull plug prior to cleaning. Clean motor by means of dry
compressed air ( from the outside).
• Check connecting lines on damages.
• Clean and grease sliding surfaces regularly. Should, nevertheless, lateral play arise by wear of the
dovetail guide, this could be adjusted by adjusting the laterally positioned set screws (K).
• 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.
mAinTEnAncE And REpAiR
maintenance, check and repairs are only to be made by electronics specialists according to the valid
regulations of the respective country.
The metal core drilling machine ALFRA ROTABEST should be serviced after appr. 250 hours running time
by our ALFRA workshop or appointed dealers. The gear oil (Lubcon, Turmogearoil pE 150 300ml) should be
exchanged as well as the brushes.
!
Only use genuine ALFRA spare parts.
Spare part list at the end of this operation manual.
guARAnTEE
For our ALFRA ROTABEST Metal Core Drilling Machines we grant guarantee according to the
legal and regional regulations (proven by invoice).
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