Engine hums after the rocket switch Pos. A13 is shifted but the
rotor does not begin to run.
Possible causes:
Ground material chunks is in the grinding chamber before grinding
begins and blocks the rotor.
Switch the mill off at the rockers switch Pos. A13 and disconnect the
power supply plug. Open the door and remove the ground material
chunks from the grinding chamber. After the door is closed and the mill
is connected to the mains again, you can switch the mill on again using
the rocker switch Pos. A13.
Engine switches off during operation:
Possible causes:
Overloading of the engine because of too large feeding amounts which
leads to heating up of the engine. Thus the motor thermal protective
switch is triggered and switches the mill off. The overheating of the
motor is indicated by the red „Error" LED becoming lit and a beep is
heard as well.
Rotor blocking as a result of feed chunks that are too large or too
tough.
Rotor blocking due to improper speed adjustment (in general, the
speed is too low for the given application).
Remedy:
Switch the mill off at the rocker switch Pos. A13 and disconnect the
power supply plug. Open the door and remove any blocked ground
material or ground material that has been cut up.
If the disturbance occurred because of overloading, let the mill cool off
before you start it again.
MF10 0998 EU
Maintenance and cleaning
The grinding chamber interior (funnels, dosing equipment, rotor, grinding
surface, filter and outlet nozzle) with a brush (no wire brush) should be
cleaned after the grinding procedure. You can also use rags or cleaning
brushes. The grinding surface does not need to be disassembled for
cleaning between grinding operations with the same feed material.
If a new grinding procedure with other feedings is to be performed whe-
reby no contamination may be produced by the previously ground mate-
rial, then more thorough cleaning is necessary which means dismantling
the grinding chamber and the rotors. See the chapter „Commissioning"
for assembly and disassembly.
The grinding chamber parts can be washed with water and, if required,
with a conventional dish-washing agent.
Be certain that the parts are dry before being reassembled.
Refer to the chapter on „Safety Instructions" when cleaning
the cutting-grinding surface and the blade rotor as the scr-
ewed on blades are very sharp and may result in injuries if
Caution:
they are improperly handled.
Clogged filters can be cleaned with brushes or compressed air. If ground
material parts have settled into the filter holes in such a way that clea-
ning alternatives are not sufficient, then you will have to clean the clog-
ged holes with suitable needles or clean the filter in an ultrasonic bath.
If beaters or blades and the grinding surface become worn in the course
of the time, particularly with constant grinding of very hard substances,
so that quick operation with the appropriate quality is no longer possible,
then the worn out parts should be replaced.
Blades may not be reground as the blade clearance will become too
large.
Fore reasons of safety, only new, original IKA bolts may be used for
fastening the knives.
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