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Overheating.
The rotary hammer drill is
pressed too hard against the
work piece.
Let the rotary hammer drill work at its
own pace.
The cutting tool is incorrectly
mounted.
Check how the cutting tool has been
mounted.
Dulled or damaged cutting tool.
Make sure that the cutting tool is kept
sharp. Replace as needed.
The motor’s ventilation holes
are clogged.
Blow away dust from the motor with
compressed air.
The extension cable is too long
or the cable capacity of the
extension cable is too small.
Connect the rotary hammer drill to an
electrical socket close by so that an ex-
tension cable is not needed. Use suitable
extension cable with the right cable area
suitable for the length and load.
NOTE!
Always follow the safety instructions when troubleshooting and carrying out maintenance.
Disconnect the rotary hammer drill from the mains before maintenance.