Troubleshooting - Mafell MT 55 cc Operating Instructions Manual

7

Troubleshooting

Some of the most frequent defects and their causes are listed in the following chart. In case of other defects,
contact your dealer or the MAFELL customer service.
Defect
Machine cannot be switched on
Machine stops while cutting is in
process
Saw blade jams as the machine
is advanced
Saw blade vibrates in the work
piece
Saw blade stops -
continues to turn
Burn marks on the cut surfaces
Chip ejection blocked
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 or mains
voltage too low
Mains fuse defective
Carbon brushes worn
Mains failure
Machine overloaded
Carbon brushes worn
Feed rate too fast
Blunt saw blade
Tension in the workpiece
Poor machine guidance (for
example due to free-hand
guidance)
Uneven workpiece surface
Saw blade not correctly adjusted
Work piece not fastened
motor Saw blade not correctly fastened
The saw blade used is
unsuitable for the task or blunt
Wood is too damp
Extended operation without
exhaustion
-26-
Elimination
Have power supply checked by
an electrician
Have fuse replaced by an
electrician
Take the machine to a MAFELL
customer service shop
Have mains-side pre-fuses
checked by an electrician
Reduce feed speed or allow
machine to cool down
Take the machine to a MAFELL
customer service shop
Reduce feed speed
Release the switch immediately.
Remove the machine from the
workpiece and replace the saw
blade
Heightened caution during
sawing, risk of backlash
increases.
Use parallel guide fence
Straighten the surface
Retighten saw blade
Fasten work piece with clamps
Retighten saw blade
Replace saw blade
Clean chip ejection
Connect to an external
exhaustion, e.g. portable dust
extractor