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7
Troubleshooting
Danger
Determining the causes for existing defects and eliminating these always requires
increased attention and caution. Pull the mains plug beforehand!
Some of the most frequent defects and their causes are listed in the following chart. In case of other defects,
please contact your dealer or the MAFELL customer service directly.
Defect
Cause
Elimination
Machine cannot be switched on
No mains voltage or mains
voltage too low
Have power supply checked by
an electrician
Mains fuse defective
Have fuse replaced by an
electrician
Carbon brushes worn
Take the machine to a MAFELL
customer service shop
Machine switches off
automatically during idling or
stops during the milling process
Mains failure
Have mains-side pre-fuse
checked by an electrician
Machine overloaded
(Overcurrent shutdown)
Switch machine off and on again
Reduce feed speed
Speed decreases during milling
Excessive chip removal
Reduce chip removal
Excessive feed
Reduce feed
Blunt router bit
Grind or replace router bit
Excessive speed, soft start
missing or speed control no
longer possible
Defective electronic system
Take the machine to a MAFELL
customer service shop
Unclean milling pattern
Blunt router bit
Grind or replace router bit
Uneven feed
Mill with constant pressure and
reduced infeed
Burn marks on the milled
surfaces
Router bit that is unsuitable for
the operating sequence or blunt
Grind or replace router bit
Machine switches off during
operation
Voltage interruption
(undervoltage shutdown)
Switch machine off and on again
Содержание LO 65 Ec
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