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Fault
Machine switches off during
machining.
The machining was not exe-
cuted correctly.
Uneven workpiece surface.
Chip ejection clogged.
When operated with dust ex-
tractor system: connection no-
zzle clogged.
Slowing-down time of the mil-
ling tool is longer than 4 se-
conds.
No or halting feed movement
under load.
6
Exploded drawing and spare parts list
The corresponding information in respect of spare parts can be found on our
homepage: www.mafell.com
Cause
The overload protection trig-
gers, for example because of
failure of one or several mains
phases.
Incorrect machine settings.
Tool blades of the reversible
knifes are blunt.
Timber is too moist, or machi-
ne has been operated for too
long without chip removal.
Machine is set to operation
with dust extractor system.
Insufficient extraction rate at
the connection nozzles.
Brake defective, or brake
pads worn.
Safety clutch worn, or set to
an excessively low value.
– 41 –
Remedy
Identify and remedy the cause
of the overload. Before swit-
ching the machine on, re-ac-
tivate the motor protection
switch.
Check the setting in accordan-
ce with the selected machi-
ning type (see sections 3.4
through 3.8).
Reverse or replace the rever-
sible knifes (see section 4.1).
Remove the chips below the
vertical chutes of the machine.
Open the shutters at the verti-
cal chutes (see section 2.4).
Increase the air speeds at the
connection nozzles to at least
20 m/s (65.6 ft/s).
Have the MAFELL customer
service replace the brake.
Tighten the safety clutch by
one sprocket (see page 79
Fig. 19).
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