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SPEZIALMÜHLEN | SPECIAL GRINDER
Operating Instructions
Costa Rica
just combine it“
”
The professional art of grinding
since 1924
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SPEZIALMÜHLEN | SPECIAL GRINDER
Dear Customer,
with the “Costa Rica“ you have purchased a grinder with an integrated
grater in the well-known MAHLKÖNIG quality.
Our over 80 years of experience in the production and development of
grinders have helped us to develop a new product in the MAHLKÖNIG
company.
As usual, this new product guarantees top-quality by grinding of all
types of coffee, spices and grains as well as grating cheese, nuts etc..
Before putting the device into service, please read these operating instructions including the safety instructions carefully and observe them
at all times. Also instruct your personnel accordingly.
Enclosed you will fi nd many useful tips that will make it easier for you
to use the grinder. Keep these operating instructions in a safe, easily accessible location. In case of any unclear points or additionally required
information, please contact your local dealer or us directly as the manufacturer.
MAHLKÖNIG GmbH & Co. KG
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Table of Contents
1. Safety 4
1.1 Symbols 4
1.2 Safety Instructions 4
1.3 Purpose of Use 5
1.4 User Requirements 5
2. Technical Data 5
3. Description 6
4. Safety Devices 7
5. Setting Up and Basic Adjustment 7
5.1 Setting-up area 7
5.2 Installation 7
6. Operation 8
6.1 Operating instructions for the grinder 8
6.2 Operating instructions for the grater 8
7. Operating Faults 9
9. Cleaning 11
9.1 Cleaning with GRINDZ™ Grinder Cleaner 11
9.2 Cleaning of the Grinder Casing 11
9.3 Cleaning of the Grinding Mechanism 11
9.3 Cleaning of the Grater 12
10. Grinding Disc Replacement 13
11. Exchanging the Grater Basket 13
12. Maintenance and Repair 14
13. Spare Parts 14
14. Certifi cate 14
15. Warranty 15
8. Grind Adjustment 10
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1. Safety
Please read and observe the following operating instructions carefully. Non-observance can result in
damage to the device as well as in health-threatening risks for the user.
1.1 Symbols
The following two symbols are used in this manual of operating instructions:
Safety instruction:
In case of non-observance, extreme risk of accidents
exists.
General instruction:
In case of non-observance, the device can become
damaged or optimum operation not be guaranteed.
1.2 Safety Instructions
The grinder you have purchased is only allowed to be used to grind the
material for which the grinder has been designed. Please compare the
information on the rating plate with the title page. Ground material is
never allowed to be fi lled into the grinder’s hopper.
Do not carry out any modifi cations or changes on the grinder. In case of
non-observance, the manufacturer shall be liable for resulting damage
in no case whatsoever.
Never operate the grinder in moist or, even worse, in wet surroundings.
Never put your fi ngers or objects into the rotating grinding mechanism
underneath the coffee bean container.
Always pull the power supply plug out of the outlet before carrying out
any maintenance or cleaning work on the device.
Never put the device into service with a defective power supply cable.
Check the device regularly for any signs of damage on the power supply
cable, plug, fi nger protector, etc.
Any repairs that may be required are only allowed to be carried out by
experts. Please contact an authorised customer service centre, your local
dealer or us directly as the manufacturer.
Do not exceed the permissible maximum operating period of 40 minutes. Afterwards, allow the motor to cool down for approx. 30–40 minutes.
When unpacking the device, please check to determine whether the
power supply voltage (volts) corresponds to the device voltage on the
rating plate.
Children do not recognise the risks that may arise when handling electrical devices; therefore never leave children alone with electrical devices
without proper supervision.
Never immerse the device in water and do not operate it with wet hands.
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2. Technical Data
1.3 Purpose of Use
The grinder you have purchased, “Costa Rica (MR32K)”, is only allowed to
be used to grind the material for which the grinder has been designed.
Never use the grinder to grind any other products or objects.
As there are a number of grater baskets for the grater, only grate products for which the grater baskets have been designed. There are grater
baskets for all types of nuts and cheeses.
1.4 User Requirements
No special requirements are specifi ed for the users of this grinder/grater.
It is, however, assumed that this manual of operating instructions has
been carefully read and understood and that all instructions provided in
this manual will be observed. In addition, working with the device on a
safety-conscious basis is also expected.
Description Costa Rica
(MR32 K)
Voltage / Frequency / Phases 220-240V / 50/60Hz
Motor rotations
@ 50 Hz 1400 U/min.
@ 60 Hz 1700 U/min.
Sound emission
Idle operation 65 dB
Grinding* 85 dB
Pre-fuse (building) 16A-slow
Current overload protection
220 - 240 V 5 A T
Permissible max. operating
time of the grinder 40 min.
Dimensions in mm W 300, H 620, D 560
Net weight 32 kg (70.5 lbs)
Hopper capacity* appr. 500 g (1.1 lbs)
* values depend on grinding material
(Please ask the manufacturer or dealer for technical data on other voltages and frequencies.)
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3. Description
Main components and operating elements
The main components and operating elements are shown in the fi gure.
Pos. 1 Hopper with lid
Pos. 2 Casing with motor and grinding mechanism
Pos. 3 Bag holder
Pos. 4 Reset button (backside)
Pos. 5 Base
Pos. 6 Residue tray
Pos. 7 Grind adjustment
Pos. 8 Bag holder handle
Pos. 9 Spout
Pos. 10 ON / OFF switch
Pos. 11 Integrated grater
Pos. 12 Star handles
Pos. 13 Feeder tube
Pos. 14 Pusher
Pos. 15 Drawer
1
2
14
7
13
12
3
11
15
9
8
4
10
6
5
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4. Safety Devices
Thermal overload circuit breaker
The motor of the grinder is protected by an overload circuit breaker,
which interrupts the electric circuit of the motor when the device is subjected to electric overloading. To be able to re-start the grinder, the reset
button on the back side of the casing must be pressed.
The user has no infl uence whatsoever on this operation. In case of repeated tripping of the circuit breaker, an expert must be consulted since this could cause
damage to the motor winding.
Motor protector (winding shield)
The grinder is protected against thermal overloading by a motor protector (thermostat, inserted in the winding). Whenever the winding of the
motor heats up to an impermissible level, the motor protector interrupts
the electric circuit of the motor. Following a cool-off phase (approx. 1 hr.),
the motor protector is switched on again automatically and the grinder
can be re-started.
Finger protector / Magnet holder
A combined fi nger protector / magnet holder is fi tted in the hopper of
the grinder. It is supposed to prevent the user from reaching into the
running grinding mechanism. At the same time, it also prevents ferrous
foreign objects from getting into the grinding mechanism. Every now
and then you should clean the magnet since adhering foreign objects
could be hanging from the magnet.
5. Setting-up and Basic Adjustment
A grinding test run is carried out on each grinder in the manufacturer‘s
factory. This is why you may fi nd ground material residue in the grinding
mechanism!
5.1 Setting-up Area
Place the grinder on a level surface free from vibration.
Never operate the grinder in moist, or even worse, in
wet surroundings.
5.2 Installation
You have received your grinder in operating condition. Now you only
need to connect it to a power supply system. Proceed as follows:
Protect your device with a separate pre-fuse (not included in the scope of supplies) according to the information provided under Item 2 „Technical data“.
Make sure that the pre-fuse is not overloaded by other consuming devices (e.g. fan-forced heaters, deep
freezers).
Determine whether the mains voltage and frequency
correspond to the information on the rating plate.
Insert the plug into the available grounded outlet.
Never remove the fi nger protection!
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6. Operation
6.1 Operating instructions for the grinder
1. By moving the rotary knob, set the required grind degree (to the left
for coarse coffee powder, to the right for fi ner coffee powder).
2. Only fi ll whole coffee beans into the hopper. Close the hopper.
3. Press the handle of the bag holder down and push the completely
opened bag, which has been smoothed along the folds, over the
spout. Let go of the handle and the bag is held fi rmly in position.
4. Now you can switch on the grinder. Knock the base of the bag a
number of times whilst grinding. This allows the maximum capacity of the bag to be used.
5. When all the coffee has run through hold the base of the bag
loosely in one hand and with the other press the handle of the bag
holder and allow it to knock against the spout 2 or 3 times. This removes any ground coffee powder which may still be attached to the
inside of the spout.
6. Now switch off the grinder and remove the fi lled bag from the
spout.
7. The grinding process is terminated.
6.2 Operating instructions for the grater
1. Remove the pusher from the feeder tube and fi ll the tube approx. ¾
full with products to be grated and then fi t it back into position.
2. Now switch the grater on.
3. The pusher pushes the products to be ground against the semicircular grater basket with its own weight. In this way you achieve
superb, evenly ground products. The pusher can be pushed gently
e.g., in the case of bulky products to be ground. However, under no
circumstances must you slow the motor by pushing too hard.
Only use the enclosed pusher to push goods to be
grated.
4. After the grating process is fi nished, operate the stripper (black button on the back of the grater housing). By knocking on the button,
the residues of the products grated fall into the drawer.
5. Now switch the device off and pull the drawer out of its brackets.
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7. Operating Faults
Defect
Cause
Remedy
Defect
Cause
Remedy
The grinder
hums but does
not grind.
The spout is
clogged.
Grinding is set too
fi ne.
A foreign object
is in the grinding
mechanism.
Set grinding fi neness to „coarse“
and trigger the grinding process. The grinder will then grind
itself free. Afterwards, return
the setting to the desired grinding fi neness.
Turn the grinding fi neness setting to the right, to „coarse“, and
trigger the grinding process.
The grinder will then grind itself free. Afterwards, return the
setting to the desired grinding
fi neness.
Clean the grinding mechanism
as described and remove the
foreign object. Observe the safety instructions!
The grinder does
not start.
The power supply plug is not
inserted.
The overload
circuit breaker has
been tripped.
The pre-fuse was
tripped.
The motor
protector was
tripped.
Insert the plug into the outlet.
Check to determine whether
the reset button of the circuit
breaker has jumped out. Press
the reset button in again if appropriate. In case of repeated
tripping of the circuit breaker,
contact your authorised customer service centre or dealer.
Check the pre-fuse. Restore the
pre-fuse to its initial state or
replace it. Determine whether
other consuming devices are
also connected to this fuse.
Give the grinder a cooling-off
break of approx. 1 hr.
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Defect
Grinder rotates
but without
grinding.
Cause
Carrier breakage.
Incorrect sense of
rotation.
Metal parts on the
hopper magnet
obstruct the
incoming fl ow
of material to be
ground.
Remedy
Remove the grinder casing cover, take out the broken pieces
of the driver, insert a new driver
and then install the grinder casing cover again.
Have the polarity checked by
specialised personnel.
Clean the hopper magnet.
8. Grind Adjustment
The grinder has been precisely adjusted by the manufacturer. However,
if the ground material is no longer fi ne enough after a longer period, the
grinder must then be re-adjusted according to the following procedure:
1. Use a screwdriver to unscrew the fastening screw in the middle of
the rotary knob and remove the rotary knob.
2. Switch on the grinder.
3. Then rotate the exposed adjusting spindle (see Fig. below) very
carefully and slowly in clockwise direction until a slight rattling
noise (contact of the grinding disks) can be heard and then rotate
the adjusting spindle immediately back again in antic lock wise direction. Attention: The discs must not touch each other!
4. A grinding test run, now to be carried out is supposed to result in
fi ne-gritty grain. If the ground material is too fi ne, it can get stuck to
the grinding mechanism so that the material to be ground can no
longer continue to descend into the grinding mechanism!
It is important to ensure that no „rattling“ noise of
the grinding disks can be heard! Their service life will
otherwise be signifi cantly reduced!
In case of other malfunctions or continued faults, please contact your dealer or your authorised customer service centre.
5. If the adjustment you have made does not fulfi l your expectations,
correct the fi neness as described above.
6. Place the rotary knob on the adjusting spindle so that the arrow
of the knob is positioned precisely on the symbol „fi ne“. Clockwise
rotation must no longer be possible.
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7. Insert the fastening screw of the rotary knob and tighten it fi rmly
with a screwdriver.
Adjusting spindle
If the result is not good enough the grinder then needs cleaning or you
have to change the grinding discs.
9. Cleaning the Grinder / Grater
Always pull the power supply plug out of the outlet
before carrying out any maintenance or cleaning
work on the device!
Observe the safety instructions under 1.2!
9.1 Cleaning with GRINDZ™ Grinder Cleaner
We recommend cleaning your shop grinder once a month with our
GRINDZ™ Grinder Cleaner.
Simply take the recommended dose of 70 - 80g for shop grinders and
drop it into the empty grinder hopper. You can also use the cup of the jar
for dosing. A full cup will yield between 35 - 40 grams.
Adjust machine setting to medium and operate as if grinding coffee
beans. Once complete, we recommend passing twice as much coffee
through to purge any residue.
9.2 Cleaning the grinder casing
Clean the casing of your grinder every now and then with commercially
available mild cleaning agents. In addition, you should also clean the
magnet in the hopper from time to time by removing any foreign objects that may have become stuck because otherwise this could result
in clogging.
Do not let any foreign objects fall into the grinding
mechanism!!
9.3 Cleaning the grinding mechanism
1. Pull out the power supply plug !
2. Rotate the rotary knob (11) to „coarse“.
3. Unscrew the two screws (13) on the grinder casing cover (12) and
then remove this cover.
4. Take the carrier (10) out of the slot of the pre-breaker.
5. Pull the pre-breaker (9) off the motor shaft. Use a screw driver.
6. Clean the grinding mechanism with a fi ne brush and remove any
foreign objects.
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7. Before pushing the pre-breaker (9) back onto the shaft again, lubricate the shaft with non-corrosive, resin-free and foodstuff- compatible grease (e.g. Vaseline).
8. After you have pushed the pre-breaker onto the shaft, line up the
two slots so that you can then easily re-insert carrier (10).
The round side of the driver must point towards the
motor.
During re-assembly, no ground material should stick
to the surfaces where the grinder casing and the
grinder casing touch each other.
10. Screw down the grinder casing cover (12) tightly with the two
screws (13) while changing the side several times.
11. Rotate the rotary knob to the desired grind degree. The grinder is
now ready for operation again.
Poppy seed grinder shall be cleaned once a week!
9.4 Cleaning of the Grater
It is important that the grater is cleaned once a week (depending on the
products that have been grated). This is very easy.
1. Pull the mains plug out of the socket.
2. Unscrew both star handles off the grater housing and pull off to the
front.
3. The grater basket is now exposed and can be cleaned as can the
cover with the feeder tube and the pusher.
4. The machine is put back together again in the reverse order.
5. Please tighten the star handles well.
9. Clean the contact surfaces of the grinder casing and grinder casing
cover (12) carefully in order to remove any form of soiling.
6. Connect the machine back to the mains supply and it is operational
again.
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10. Grinding Disc Replacement
If the grinding performance decreases and the ground products are hot
and irregular, you should change the grinding discs.
1. Take the grinder apart as described under “9” and remove the
grinding discs from the grinder casing and the pre-breaker
using a screwdriver.
2. Clean the surfaces of the new grinding discs thoroughly and
screw them in position tightly and evenly.
3. Close the grinder casing again as described under “9” and set
the grind degree again as described under “8”.
11. Exchanging the Grater Basket
1. Take the grater apart as described in “9.4”.
2. Push the enclosed holder with the drilled hole on the left guide rod
for the grater housing and place in the groove of the grater basket
holder (the angled side of the holder is positioned on the basket
holder).
6. Now the grater basket and the pressure disc can be replaced whereby the side of the pressure disc which has been exposed when turning must be pressed against the grater basket. Now the hexagon
screw can be screwed in together with the washer.
7. To tighten the hexagonal screw position the holder on the right
hand guide rod and let it engage into the groove on the grater basket.
8. Tighten the hexagonal screw well.
9. Remove the holder.
10. Replace the grater casing and the cover with feeder tube and the
two star handles and tighten well.
12. Push drawer into its holder and connect the machine to the mains
supply again. Now you can use the device again.
hexagonal screw
3. Now, using a 13 mm socket spanner you can unscrew the hexagonal screw in the middle of the grater basket by turning it to the left.
4. Now remove the old grater basket and remove the pressure disc.
5. Clean the surfaces of the new grater basket and the grater basket
holder well
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12. Maintenance and Repair
Always pull the power supply plug out of the outlet
before carrying out any maintenance or cleaning
work on the device!
Check the device regularly for any signs of damage
on the power supply cable, plug, fi nger protector, etc.
Any repairs that may be required are only allowed to
be carried out by authorised experts. Please contact
an authorised customer service centre or your local
dealer.
13. Spare Parts
Spare parts are usually ordered from your customer service centre or
your local dealer. To ensure quick, correct processing of your order, the
following information is absolutely required:
1. Type designation and serial number of the grinder (on the rating plate
on the rear side of the grinder).
2. Color of the grinder
14. Certifi cate
EC Declaration Conformity
As defi ned by EMC-directive 89/392/EWG
Name of the manufacturer or in the EU residential authorized person:
MAHLKÖNIG GmbH & Co. KG
Address of the manufacturer or the authorized person:
Tilsiter Strasse 142, D-22047 Hamburg
announce, that the machine below
product type: commercial device for food processing
machine description: Coffee grinder and grater
machine typ: MR 32K, KR 32 K (Costa Rica)
is in compliance with the conditions of the Directive of Machines 98/37/EG and with
the main standards stipulated in the Directive concerning low tension 73/23/EWG and
applies to the national laws that transpose it.
Issued in Hamburg: 01.01.2008
Function of subscriber: Managing Director
Name of subscriber: Nils Erichsen
Signature
MAHLKÖNIG GmbH & Co. KG
Tilsiter Straße 142, 22047 Hamburg
Telefon : 040 - 69 69 40 - 0
Telefax : 040 - 69 39 721
MAHLKÖNIG GmbH & Co. KG, Amtsgericht Hamburg HR A 85 074; Persönlich haftende Gesellschafterin:
Beteiligungsgesellschaft MAHLKÖNIG mbH, Eingetragen Amtsgericht Hamburg HR B 45 324, Geschäftsführer: Nils Erichsen
Dresdner Bank AG (BLZ 200 800 00) Kto. 383 780 400, Postbank Hamburg (BLZ 200 100 20) Kto. 253 89-203
Commerzbank AG (BLZ 200 400 00) Kto. 21 10 294, Ust. Id. Nr.: DE 118 37 22 65
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15. Warranty Conditions
1. The warranty period is 1 year from the date of purchase.
2. The warranty covers all damages that can be attributed to inferior
materials or defective workmanship. Corresponding grinders will be
repaired or replaced free-of-charge, with the exception of transport
or freight charges. Transport is the responsibility of the customer.
Therefore, avoid damages with all returns by correct packing.
3. The grinder may only be opened for cleaning purposes in accordance with the Operating Instructions.
4. This warranty does not cover damages which have occurred
through: Improper usage, improper maintenance, lack of servicing,
usage for purposes other than those intended, incorrect installation, incorrect voltage, breakage, natural wear or for reasons beyond
our sphere of infl uence.
5. In order to maintain the warranty, only original spare parts and accessory parts may be used.
6. Observe in addition our General Delivery Conditions in their respective current version.
7. The manufacturer is in no way liable for consecutive or secondary
damages.
8. The warranty does not cover costs emerging from repairs conducted
by non-authorized personnel.
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offi ce@mahlkoenig.de ; www.mahlkoenig.de
MAHLKÖNIG GmbH & Co. KG
Tilsiter Straße 142
D- 22047 Hamburg, Germany
Tel.: +49 (0)40 / 69 69 40 - 0
Fax: +49 (0)40 / 69 39 721
November 2009
Subject to change without prior notice!!
The professional art of grinding
since 1924
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