Troubleshooting - Mafell NFU 50 Manual De Instrucciones Original

7

Troubleshooting

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
Machine cannot be switched on
Machine stops while milling
Burn marks on the milled surfaces
Chip ejection blocked
Increased vibration and poor
milling pattern
Milling tool cannot
released/tightened.
Formation of odour
Danger
Determining the causes for existing defects and eliminating these always requires
increased attention and caution. Pull the mains plug beforehand!
Cause
No mains voltage
Mains fuse defective
Carbon brushes worn
Mains failure
Machine overloaded
Tool unsuitable or too blunt for the
work process
Wood is too damp
Milling without extraction
Large wood chip in ejector or
extraction hose
Too many chips accumulating
Cutter head comes loose
be Friction clutch activates
Brake lining heated
-33-
Elimination
Check power supply
Replace fuse
Take the machine to a MAFELL
customer service shop
Check mains back-up fuses
Reduce feed speed
Turn or replace carbide indexable
cutting inserts
Replace tool
Turn or replace carbide indexable
cutting inserts
Dry the wood
Connect machine to an external
extraction system
Clean machine or hose
Pull the mains plug during this work
Reduce feed speed
Take the machine to a MAFELL
customer service shop
Lock milling tool with pin and
loosen/tighten the screw
Odour formation decreases over
the operating time