IKA MF 10 Serie Instrucciones De Manejo página 22

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Cutting mill:
Assembling the cutting mill head:
Caution: The blades on the rotor and in the
Note!
grinding chamber have sharp edges. Both parts
should only be handled when wearing protective
gloves.
The ON/OFF switch Pos. A 13 must be to zero
and the power supply plugs must have been dis-
connected out before beginning assembly of the
cutting-grinding head.
First the three threaded bolts Pos. S 12 (see fi g. 2)
are screwed out to the same hight (distance bet-
ween hexagon of the bolt and the fl at surface on
the grinding head is appoximately 2 mm, this cor-
responds to two turns). Make sure that the fl ange
piece on the drive and on the head are clean and
free of dust. Abrading both fi tting parts with a
slightly oiled rag facilitates assambly. The head is
now pushed onto the drive, while making cer-
tain that the parts do not jam. The threaded bolt
ends must fi t into the drillings of the transmission
cover. Thus the head has be rotated slightly in a
clockwise direction. After the bolts are fi tted in
the head is turned until it is stopped by the bolts
and so that the head now stands upright. Now
close and clock the grindinding chamber door
with the operating knob Pos. S 9 (3 to 5 revolu-
tions are suffi c ient). This ensures that the grinding
chamber is optimally aligned so that the door can
be easily openend and closed later.
Now the screw mountings are tightened with the
fork wrench provided. Make certain that the pins
are tightened toward the head (see fi g. 3.2).
Note: Tighten the pins evenly!
Now the hammer rotor Pos. S 20 can be installed.
For this the fi tting key Pos. A 7 is fi rst inserted
into the groove of the drive shaft Pos. G 6, make
certain that the groove is free from dirt and dust
here as well. The rotor is pushed onto the drive
shaft as shown in Fig. 2, fastened with the disk
Pos. S 22 and the cheese head screw Pos. S 21.
The countersunk screw, P 15, is tightened with
the Allen key supplied, while the rotor is held
with the face spanner that is included in delive-
ry. The spanner is positioned so that the pins of
the spanner are inserted into the bore holes on
the face of the rotor. The disc must be turned so
that the bore hole in the rotor is accessible for the
spanner pins.
Note: After tightening the cheese head screw
with the Allen key, turn the blade rotor once
(360°). The rotor may not touch. Repeat assem-
bly if necessary.
Now the fi lter Pos. Z 1 that is suitable for the
grinding procedure can be inserted; to do so the
fi lter is pushed into the grinding chamber from
the front. The fi lter and the fi lter holder surface
in the grinding chamber must be free from dirt
and dust. Now the grinding chamber door can
be closed and locked with the operating knob
Pos. S 9. The screw mounting of the operating
knob is screwed in by pressing and twisting it
into the internal thread on the drive cover. The
fi rst turns are easy, if turning becomes diffi cult
then the door may be closed, but the safety
switch is not yetunlocked. Continue turning until
stop (approximately two revolutions), only then
is the safety switch unlocked and the mill ready
to start.
Grinding operation with the cutting mill:
The suitable fi lter is pushed in and the door is
locked before beginning the grinding procedure.
Afterwards a collecting pan is fastened to the
discharge cone Pos. S 1 (standard ground joint
NS 29). Suitable containers are e.g. Erlenmeyer
fl asks Pos. Z 3, round-bottomed fl asks, test tubes
made of eitherglass or plastic. The containers are
to be secured with a fi xing clip Pos. Z 2 (see fi g.
2).
For heat sensitive materials or with ground ma-
terials that have a very high increase in volume
during cut up, it is advisable to use a twonecked-
fl ask with fi lter attached to its second (e.g. cot-
ton wool, etc.). The ground material is cooled
from the air fl ow and no excess pressure is crea-
ted. for very critical ground materials (very fi ne
powder after being cut up) the ground material
can also be sucked off by means of acommercial
vacuum cleaner with a suction tube adapted at
the discharge cone. The powder is then in the
vacuum cleaner bag where it can be removed for
further processing steps.
The speed knob Pos. A 12 is turned to the left
stop (3000 rpm). The mill is started by shifting
the rocker switch Pos. A 13 to Position 1. First
the green „Power" LED is lit and then „Overload"
LED lights up briefl y before the motor smoothly
starts.
22

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Mf 10.1Mf 10.2

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