IKA A 11 basic - Manual (Page 19)

19
Cleaning:
Unplug the power cord before all cleaning tasks!
Dirty parts in the pulverization area can be cleaned with a cleaning brush. If there
is a heavy accumulation of dirt, the grinding container can be cleaned in a dish-
washer. If grinding dust is found in the middle section (the area where presure
spring is located) it can be blown out through the opening with compressed air.
If there is a heavy accumulation of dirt on the guard ring and the middle section
can be disassembled as follows (see figure 4).
First, the pulverization tool must be disassembled. (See „Exchanging the pulveriza-
tion tools“). Then the mill should be placed on the guard ring (item 8) and the two
guide screws (item 22) should be opened with a hexagonal socket head wrench.
Caution: The mill must be held in place by the drive section during the opening
process, since the middle section and the drive section are under spring tension as
a result of the pressure spring. When both screws have been openend, the drive
section can be pulled away from the middle section. the switch block (item 15)
remains on the drive section.
The middle section and if necessary the pressure spring can be cleaned in a
dishwasher.
The drive section should simply be wiped clean with a moist cloth. Never clean in
water or in a dishwasher.
Assembly:
The pressure spring should be inserted into the middle section so that it is held into
the guide groove. The guide screws should be screwed in until just after they no
longer protrude into the internal diameter of the middle section.
Now the drivesection should be set in place so that at first the spring is held in the
guide groove and the switch block snaps into the matching opening in the middle
section.
For the switch block to engage completely in place, the drive section must be pushed-
into the middle section up to the lower stop. While the drive sections is inserted
about half way into the middle section, the guide screws should be tightened.
Caution: The switch block must engage flush in the middle section in the
Maitenance and cleaning
assembled state. This should always be checked and if necessary corrected.
Finally the desired pulverization tool is assembled.
Maintenance:
If beaters or blades wear out over the course of time, especially as a result of
constant grinding of very hard materials, so that rapid grinding with the appropriate
quality is no longer possible, you need to replace the worn - out parts. Blades can
be resharpened with standard commercially available sharpeners.
Caution: If blades are sharpened with a grinding machine (wet grinding only is
permissible). you should make certain that the same amount of material is removed
on all sides. Otherwise the blades will become unbalanced.
If more grinding dust settles into the middle section over the course of time, the
seal (item 20) must be replaced.
To do this, you must follow this procedure (see figure 4):
• Disassemble the middle section as described under „Cleaning and maintenance”
• Loosen the three nuts (item 13) with a socket wrench.
• Take out the guard ring (item 8) and remove the seal from the plastic section.
NOTE: Before installing the new seal, make certain, that the seal seat is clean and
free of dust.
To perform the assembly, place the middle section on its head.
• Insert the seal. Make certain as you do this that you install it in the correct
direction
• Now set the o-ring (item 19) in place. Always use a new o-ring
• Then place the o-ring (item 9) in place, set the guard ring in place and screw it
until it is tight.
When ordering spare parts, please give the manufacturing number shown
on the type plate, the machine type and the name of the spare part and
its item.
Please send in the equipment for repair only after it has been cleaned and is free
from any materials which may constitute a health hazard. Please tell us if you have
used any materials which are dangerous or which may constitute a health hazard.