Mafell NFU 50 Consignes D'utilisation/De Sécurité page 35

NFU 50
9 Troubleshooting
Some of the most common malfunctions and their causes are listed below. For other malfunctions, please
contact your dealer or MAFELL Customer Service directly.
Malfunction
Machine can not be switched on
Machine stops during the milling
process
Burn marks at the milling
surfaces
Chip ejector obstructed
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Warning
Risk of injury from a sudden start of the machine.
There is a risk that the machine starts suddenly due to carelessness when
working with the machine or during troubleshooting. The rotating tool can
cause serious injuries.
Determining the causes of existing malfunctions and their elimination

always require increased attention and caution!
Pull out the mains plug before you start troubleshooting!

Cause
Mains voltage missing or too low
Mains fuse defective
Carbon brushes worn out
Mains failure
Machine overload
Tool blunt or unsuitable for the
operation
Wood too damp
Milling process without extraction
Large wood chip in discharge or
extraction hose
Too many chips
Elimination
Have the power supply checked
by an electrician
Have the fuse replaced by an
electrician
Take the machine to the MAFELL
customer service workshop
Have the mains back-up fuses
checked by an electrician
Reduce feed rate
Turn or replace the carbide
inserts
Replace the tool
Turn or replace the carbide
inserts
Dry the wood
Connect the machine to an
external extraction
Clean machine or hose
Pull the main plug for this work
Reduce feed rate
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