IKA A 11 basic Mode D'emploi page 15

Commissioning
Check whether the voltage specified on the type plate matches
the mains voltage available. The power socket used must be ear-
thed (protective earth conductor contact). If these conditions are
met, the device is ready to operate after plugging in the mains
plug. If these procedures are not followed, safe operation cannot
be guaranteed and/or the equipment may be damaged.
Observe the ambient conditions (temperature, humidity, etc.)
listed under Technical Data.
The grinding container in Figure 1 can be unscrewed and removed
by rotating it counterclockwise. The drive section can be turned off
on the guard ring Item 8. The grinding container is filled with a sui-
table material. It is essential at this point not to fill the container hig-
her than the maximum filling height (up to the lower edge in the
grinding container, see Figur 1). Filling the container to a higher level
will result in interfering with the operation, which will overload the
mill. The filling quantity can be reduced down to the „uniform grain
size" (in other words minimum quantities are also possible).
Note:
Smaller fillingquantities (for example only about 50 - 80% of the
maximum filling quantity) can be pulverized more quickly, the final
granularity is finer, the range of granularity is smaller and there is
less heating up of the grinding materials. It is better to reduce a
large quantity of grinding materials in two or three portions. The
actual grinding time is only barely longer, but the grinding results
are considerably better.
Bulky grinding material (for example hay, straw,etc.) can also be fil-
led up higher then the lower edge, but no more than about 10mm
belowe the upper edge of the grinding container. The loose grin-
ding material is forced into the grinding zone when the drive is
pushed in. The filling grinding container is screwed in onto the
drive up to the stop (you can hear a soft click just before reaching
the stop). When electrical power has been connected, you can
begin with the grinding procedure. Grasp the hood with one hand,
press the On/Off key with your thump (Figure 2), and the mill
A 11 022000
starts. Pressing the drive down softly and slowly in the axial pres-
sing direction forces the pulverization tool into the grinding mate-
rial (pressing on one side only can tilt the drive, which could result
in premature wear and tear on the shaft seal).
When the pulverization tool engages the grinding material, the
speed of the motor decreases. The reduction in rpms is audible. If
the reduction in speed is very pronounced, the speed of the drive
should be increased to be able to insert the pulverization tool into
the grinding material at nominal speed. Depending on the grinding
material, it may be necessary to repeat this procedure serval
times. If the speed remains relatively constant while the pulver-
ization tool is being lowered and raised back up, the grinding pro-
cedure is complete.
The grinding time should not exceed 30 seconds. Further grinding
will not improve the pulverization of the grinding material, but hea-
ting up will increase considerably.
Before the grinding procedure is complete, the drive should be rai-
sed completely. Only then should the On/Off switch be turned off.
The advantage of this method is that the pulverization tool cleans
itself. Do not unsrew the grinding container until the motor has
come to a standstill. Any grinding material that adheres to the
guard ring can be swept off on the guard ring into the grinding
container with a cleaning brush (no wire brushes!).
Please note: The grinding tools, the grinding container and the
rotor shaft may be hot. Observe the safety instructions.
Exchanging the pulverization tools:
Please note: The edges of the blade are sharp. It should only be
handled with protective gloves. Please observe the safety instruc-
tions. Note that when changing the tool directly after a grinding
procedure, the pulverization tools are hot. The mill must first be
allowed to cool off Before exchanging the pulverization tools, unp-
lug the power cord.
Rotate the mill drive onto its head and push it into the grinding
container with the head down (see Figure 3). Hold the rotor shaft
securely in place with the curved single-head wrench by the flat-
tened section underneath the pulverization tool. Loosen and remo-
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