Mahlkönig Tanzania User manual

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LADENMÜHLEN SHOP GRINDER
The professional art of grinding
since 1924
Operating Instructions
Tanzania
”Innovation & Design“

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LADENMÜHLEN SHOP GRINDER
Dear Customer,
with the new „Tanzania“ you have purchased a grinder in the
well-known MAHLKÖNIG quality.
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.
Before putting the grinder into service, please read these oper-
ating instructions including the safety instructions carefully and
observe them at all times. Also instruct your personnel accord-
ingly.
Enclosed you will find 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 deal-
er or us directly as the manufacturer.
MAHLKÖNIG GmbH & Co. KG

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LADENMÜHLEN SHOP GRINDER
Contents
1. Introduction
1.1 Safety instructions
1.2 Scope of the documentation
1.3 Definition of the terms used
1.4 Copyright
2 Safety and Warranty
2.1 Explanation of safety instructions
2.2 General safety instructions
2.3 Electrical power
2.4 Use in accordance with the intended purpose
2.5 Service staff requirements
2.6 Warranty and liability
3 Description of the machine
3.1 Function principle
3.1.1 Design of the machine
3.2 Technical data
3.2.1 Power supply
3.2.2 Noise emission
4 Packaging and transport
4.1 Packing the machine
4.2 Unpacking the machine
5 Positioning the machine
5.1 Installation site requirements
6 Installing the machine
6.1 Installation
6.2 Installing the collecting tray
6.3 Electrical installation
7 Start up
8 Operation
8.1 Conditions for machine operation
8.2 Operating
8.3 Calibrating the machine
9 Maintenance
9.1 Cleaning
9.1.1 Removing / Replacing the hopper
9.1.2 Cleaning the grinding mechanism
9.1.3 Cleaning the spout
9.1.4 Cleaning the collecting tray
9.2 Replacing components
9.2.1 Replacing the grinding discs
9.2.1.1 Removing the grinding disc in the rotating flange, with-
out screws

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LADENMÜHLEN SHOP GRINDER
9.2.1.2 Removing the grinding disc in the stationary flange, with-
out screws
9.3 Maintenance work on the mains power supply
10 Protection devices / Faults
10.1 Protection devices
10.2 Faults
10.2.1 Fault correction
11 Waste disposal
12 Electrical wiring diagrams
13 Warranty
14 Contact addresses

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LADENMÜHLEN SHOP GRINDER
1. Introduction
1.1 Safety instructions
The Operating Instructions must be kept permanently at the location
where the machine is operated and, if possible, fixed in place.
• It is essential that the responsible sales and service staff read the Op-
erating Instructions before starting the machine and that they are
familiar with all its functions including procedure in case of malfunc-
tion.
• The machine should not be used by persons (including children) with
physical, sensory or learning difficulties or who lack sufficient experi-
ence and/or know-how, unless they are fully supervised by a person
responsible for their health and safety or have received appropriate
training about safe machine operation from the said person.
• Children should always be fully supervised to ensure they do not play
with the machine.
• Install the machine out of the reach of children.
• If customers are to use the machine themselves, there must be a clear-
ly visible notice in the immediate vicinity of the machine instructing
customers to call the responsible sales staff in the event of a fault
and warning them not to attempt to correct the fault themselves by
tampering with the machine.
• The machine must be located in the sales areas such that customers
always have direct access to sales staff.
• Use only original spare parts when repairing the machine. Using spare
parts from other manufacturers may impair the serviceability of the
machine. In addition, there remains the possibility of further personal
injury or material damage.
• Use only original grinding discs sharpened by MAHLKÖNIG.
• Never insert fingers or objects into the bean hopper.
• Never touch the electrical components with conducting objects, such
as needles, pins, cutlery etc.!
• Ensure that the machine is electrically protected with circuit breakers
or fuses in accordance with the nameplate and local regulations.
1.2 Scope of the documentation
This manual includes the following information:
• Installation of the machine with all available options
• Settings
• Start up
• Use
• Maintenance
• Electrical wiring diagrams
The Operating Instructions are an essential element of the machine and
form part of the supply. Always ensure that the Operating Instructions
are passed on to the new owner together with the machine, if it is sold.

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LADENMÜHLEN SHOP GRINDER
1.3 Definition of the terms used
In these Operating Instructions, the following terms are used to define
all persons who are involved with the Coffee Grinder:
User
The machine operator’s customer is defined as the user. The user uses
the machine without assistance. There must be a notice instructing the
user to consult service staff immediately in the event of a fault. The user
must not attempt to correct faults himself by tampering with the ma-
chine.
Service staff
Service staff are defined as persons engaged by the operator for the ser-
vicing and upkeep of the machine. It is essential that service staff have
read and understood the Operating and Maintenance Instructions. Ser-
vice staff must be familiar with all the functions including procedure in
the event of a fault.
Maintenance staff
Maintenance staff are defined as persons engaged by the operator for
the installation and maintenance of the machine. The person respon-
sible must have both technical knowledge and practical skills. It is es-
sential that maintenance staff have read and understood the Operating
and Maintenance Instructions.
Operator
The operator is defined as the contractual partner of the manufacturer
or his representative.
The operator has the signature authority to make legally binding agree-
ments. The operator purchases the machine and allows it to be used for
the purpose he intends.
1.4 Copyright
These Operating Instructions must be treated in confidence. All the in-
formation and data supplied in these Operating Instructions are pro-
tected by copyright. Breaches of copyright are an offence and give rise to
claims for compensation.
This documentation contains material which is protected by copyright. It
may be neither duplicated, copied, microfilmed, nor passed to third par-
ties without the consent of MAHLKÖNIG GmbH & Co. KG.
2 Safety and Warranty
2.1 Explanation of safety instructions
All safety instructions in these Operating Instructions provide timely ad-
vice regarding possible dangers of life or injury, possible damage to the
machine and how to maintain operation without defects.
All parts that are particularly important feature a warning sign. This in-
formation must be read and followed.
WARNING
indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
indicates a hazardous situation which, if not avoided,
may result in minor or moderate injury.

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LADENMÜHLEN SHOP GRINDER
NOTICE
NOTICE indicates a property damage message.
HINT
HINT provides important information which helps you to utilize the
grinder correctly and safely.
2.2 General safety instructions
Take particular note of the following instructions:
• Each person who is concerned with the installation, start up, opera-
tion and maintenance (inspection, maintenance, repair) of the ma-
chine must have read and understood the whole of the Operating
Instructions, and in particular the chapter 2 “Safety and warranty”.
• This machine has been manufactured and assembled in accordance
with the latest technology. Particular attention has been given to the
safety of the user and the ergonomic layout of the operational con-
trols.
• All safety and protection devices are components of a safety design
philosophy that has the objective of protecting all persons who work
with the machine from any danger.
HINT
No modifications that alter or prevent the functionality or the mode of
operation of the safety and protection devices are permitted.
• The machine may only be operated if all safety and protection devices
are fitted and are functioning without defects.
HINT
In all activities related to installation, maintenance and repair the
switching off procedures pre-scribed in the Operating Instructions must
be followed.
• No working procedure that impairs the safety of the machine can be
permitted to continue. Service staff are obliged to report immediately
any modifications to the equipment that impair safety.
• The operator is obliged to operate the machine only when it is with-
out defects.
Installation, maintenance and repair activities are
only to be performed when the equipment is at rest.
Before beginning these tasks switch off the machine
and pull out the mains plug from the mains socket.
• Before switching on after restoration of operation, check that all pro-
tection devices are fitted and fully functional.
• Local safety and accident prevention procedures always apply when
the machine is being operated.
• These Operating Instructions are part of the machine. In the event of
damage or loss they must be replaced immediately. For this purpose
please contact our Customer Services department or an authorized
customer service outlet.

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LADENMÜHLEN SHOP GRINDER
2.3 Electrical power
Never touch parts that are exposed to electrical volt-
age. These can cause an electric shock that can lead to
severe injury or death!
Never operate the machine with a defective mains cable. Defective
mains cables or plugs must be replaced immediately by authorized spe-
cialist personnel or by our Customer Services department.
NOTICE
Before connecting the machine to the mains, check whether the local
operating voltage, frequency and circuit breakers/fuses match the data
shown on the nameplate and with the technical data in these Operating
Instructions. If the data does not match, do not connect the machine to
the mains!
2.4 Use in accordance with the intended purpose
The sole function of the Coffee Grinder is to grind whole roasted cof-
fee beans. Any other use is deemed to be not in accordance with the
intended purpose.
NOTICE
Only whole coffee beans may be loaded into the bean hopper. Do not
put ground coffee into the bean hopper. Coffee that has already been
ground once must not be loaded into the bean hopper and reground.
NOTICE
Only coffee beans may be loaded into the bean hopper. Do not put oth-
er objects or liquids into the bean hopper, since this will damage the
grinder.
HINT
The machine can be dangerous if it is used improperly or not in accor-
dance with the intended purpose. Use in accordance with the intended
purpose also includes observation of operating and maintenance condi-
tions as prescribed by the manufacturer.
2.5 Service staff requirements
The machine may only be serviced and maintained by personnel who
have been trained and assigned to the equipment. The operator must
warn service staff of any hazards that may be present.
The operator must clearly assign responsibilities as to servicing and
maintenance, so that, as far as safety is concerned, no one is unclear as
to who is responsible for what. The operator must take care that no un-
authorized persons perform such tasks on the equipment.
2.6 Warranty and liability
The warranty is limited to the replacement of defective parts. The manu-
facturer shall not be liable in respect of claims in excess of this. Spare
parts must conform to the technical specifications of the manufacturer.
Use only MAHLKÖNIG – original spare parts.
The machine must be operated in the prescribed manner as described in
these Operating Instructions. No other use of the equipment is permit-
ted. The operator must not convert or modify the machine.

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LADENMÜHLEN SHOP GRINDER
3 Description of the machine
3.1 Function principle
The Coffee Grinder is intended for grinding various types of coffee. An
adjusting knob with scale is used to continuously set the fineness of the
grind from “Turkish fine” to “Coarse”.
The Coffee Grinder is suitable for use in food stores, cafés, restaurants
and hotels. Its simple operation enables customers in self-service areas
to operate the grinder on their own. The actual operation of the machine
may vary slightly from the information specified in these Operating In-
structions.
3.1.1 Design of the machine
Names of the components
1 Cover 8 Grinding fineness adjusting knob
2 Hopper 9 ON/OFF-switch
3 Clamping lever 10 Mains cable
4 Spout 11 Klixon overload protection
5 Bag shaker (underneath)
6 Collecting tray
7 Grinder cover
12
5
6
7
8
4
3
9
10
11

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LADENMÜHLEN SHOP GRINDER
3.2.1 Power supply
The power supply ratings depend on the customer’s mains power sup-
ply. Please note the nominal ratings on the nameplate fixed to the rear
of the machine.
Please see chapter 12 “Electrical wiring diagrams” for the electrical wir-
ing diagrams.
3.2.2 Noise emission
Equivalent persistent noise pressure level when grinding is 77 dB (A).
4 Packaging and transport
4.1 Packing the machine
The machine must be packed appropriately to keep it safe during trans-
port. The machine manufacturer recommends the type of packaging
material used for dispatch from the factory.
4.2 Unpacking the machine
Procedure:
1. Bring the machine while still packed as close as possible to the in-
stallation site. Read the chapter 5.1 entitled “Installation site require-
ments”.
2. Remove the packaging and check the whole shipment for complete-
ness as detailed on the delivery note and for any damage caused dur-
ing transport.
3.2 Technical data
Description Tanzania
Voltage/Frequenzy 220-230V / 50/60Hz
115V / 60Hz
100V / 50/60Hz
Grinding disc Ø 80 mm
Rotation 1480 rpm @50Hz
1780rpm@60Hz
Sound emission
idle operation 77 dB(A)
Dimensions (WxHxD) 21x63x30 cm
Weight 16 kg
Hopper capacity 0,7 kg
(Please ask the manufacturer or dealer for technical data on other voltages and frequencies.)

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LADENMÜHLEN SHOP GRINDER
6 Installing the machine
Remove any adhesive tapes and remaining packaging.
6.1 Installation
Procedure:
1. Decide where the machine’s final position will be.
2. Fit the support surface for the Coffee Grinder. Make sure that the sup-
port surface for the machine is flat and stable. Ideal support height
for the machine: 750 mm (30”) from the floor.
6.2 Installing the collecting tray
Place the collecting tray (1) onto the two mounting brackets (2).
12
3. If you discover transport damage, notify both the transport and dis-
patching companies immediately. Please refer to the chapter 14 en-
titled “Contact addresses”for the address and contact numbers of the
machine manufacturer.
Make a photographic record of the damage. In addition, retain all the
packaging material to assist any further clarifications!
4. Place the machine in its final position.
The dimensions of the packaging material match those of the machine.
We recommend that you store this material in a dry place for any future
transport.
5 Positioning the machine
5.1 Installation site requirements
The installation site must be dry and well ventilated. Always install the
grinder on a flat, nonskid surface to ensure that it can neither fall over
nor slide.
HINT
Keep the machine out of the reach of children. Children do not recognize
the dangers associated with electrical equipment.
The mains plug has to be easily accessible after installation!

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LADENMÜHLEN SHOP GRINDER
• Have all the cladding and covers been fitted?
• Has the bean hopper been attached correctly to the Coffee Grinder?
• Is the mains plug easily accessible?
8 Operation
This chapter contains all the information needed for safe operation of
the Coffee Grinder.
8.1 Conditions for machine operation
Before the machine can be operated, the following conditions must first
be satisfied:
• The machine has been correctly installed and connected as described
in the chapter 6 entitled “Installing the machine”.
• The installation check has been carried out as described in the chap-
ter 7 entitled “Start up”.
8.2 Operating
Operating the Coffee Grinder:
1. Use the adjusting knob (1) to set
the desired grinding fineness. The
scale ranges from 1 (Turkish) to 9
(Coarse).
2. Lift the cover (2) and pour the coffee beans into the bean hopper (3).
6.3 Electrical installation
NOTICE
Before connecting the machine to the mains, check whether the local
operating voltage, frequency and circuit breakers/fuses match the data
shown on the nameplate and with the technical data in these Operating
Instructions. If the data does not match, do not connect the machine to
the mains!
The nameplate is located on the rear of the Coffee Grinder.
• Also, please note the information in the chapter 3.2 entitled “Techni-
cal data” and the circuit diagram. The latter is located in the chapter
12 entitled “Electrical Wiring Diagrams”.
7 Start up
HINT
Start up must only be carried out by MAHLKÖNIG Customer Services or
a representative authorized by MAHLKÖNIG! This will be an opportunity
for thorough familiarization of your service staff with the machine’s op-
erations.
NOTICE
Carrying out the start up yourself can lead to personal injury and dam-
age to property and assets!
Installation check
• Has the mains cable been laid properly (without kinks and so it won’t
wear through abrasion and also won’t present a trip hazard) and is it
connected?

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LADENMÜHLEN SHOP GRINDER
NOTICE
Ensure that the bag is fully open before placing and fastening it over
the spout! If the ground coffee cannot flow freely into the bag, it may
result in clogging and malfunctioning of the Coffee Grinder!
5. Ensure that the hopper slider is open.
6. Start the grinding motor by setting the
ON/OFF switch (7) to ON (I).
7. After grinding, always set the ON/OFF
switch to “OFF”(0).
8. Keep hold of the bag, raise the clamping lever to the limit stop and
release it. The lever returns to its initial position, thus ensuring that
the spout is emptied correctly.
9. Repeat point 8 two or three times until there is no coffee powder
stuck to the spout.
10. Keep hold of the bag and raise the clamping lever again in order
to remove the bag.
8.3 Calibrating the machine
The machine is factory calibrated and supplied ready for operation. The
scale on the adjusting knob is based on the factory setting and deter-
mines the fineness of the grind.
The factory setting can be changed if:
• The desired grind does not correspond to the fineness of the factory
setting.
• An individual grind is desired.
NOTICE
Changes to the factory setting should only be carried out by service
staff!
Procedure:
1. Switch ON the grinder via the ON/OFF switch (I).
2. Hold the adjusting knob (1) and use a screwdriver to loosen the center
screw (2), approx. 4 rotations.
NOTICE
Only whole coffee beans may be loaded into
the bean hopper. Do not put ground coffee into
the bean hopper! Coffee that has already been
ground once must not be loaded into the bean
hopper and reground, since this will clog the
grinding mechanism!
3. Close the cover (2).
4. Lift the clamping lever (5) and simultane-
ously place an empty bag over the spout (6).
Always release the clamping lever before re-
moving the bag.
3
2
5
6
7
4

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LADENMÜHLEN SHOP GRINDER
3. Turn the adjusting knob (1) clockwise until the limit stop.
4. Pull out the adjusting knob to disengage it from the limit stop and ro-
tate it further. Subsequently release and push in the adjusting knob
until it re-engages.
5. Turn the adjusting knob until you hear the grinding discs touching.
6. As soon as you hear the grinding discs scraping, turn the adjusting
knob counter-clockwise the distance of 2 scale lines. This corresponds
to the basic factory setting. Depending on the desired fineness of the
grind, it is possible to turn the adjusting knob back further. This re-
sults in a coarser grind.
7. Pull out the adjusting knob again at this position and turn it until #
1 is aligned to the arrow (3). Push the adjusting knob back in at this
position.
8. Hold the adjusting knob and tighten the center screw (2). Test grind
the new setting.
NOTICE
The grinding discs should never touch at #1 setting! If the grinding discs
are touching, repeat the setting procedure.
9 Maintenance
Careful and regular maintenance will ensure that your machine gives
trouble-free service. This covers all the tasks which keep a functioning
machine in good working order:
• Cleaning
• Replacing components
NOTICE
Ensure that maintenance work is only carried out by your service and
maintenance staff or by MAHLKÖNIG Service partner since these tasks
require specialist knowledge and particular skills. Neither can be ob-
tained by reading these Operating Instructions.
The grinder must not be opened until the machine is
completely at rest. Before opening the casing, pull the
mains plug of the machine out of the mains socket!
We recommend that the machine be given a complete overhaul at least
once per year.
Please feel free to call on MAHLKÖNIG Service partner for all mainte-
nance work. Please refer to the chapter 14 entitled “Contact Addresses”
for the address and contact numbers of Customer Services.
After approx. every 1,000 kg of ground coffee:Inspect grinding discs!
After one year of service: Overhaul of the whole machine!

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LADENMÜHLEN SHOP GRINDER
9.1 Cleaning
HINT
Cleaning must be carried out by service staff!
NOTICE
Foreign material should not enter the grinding chamber!
• Always clean the machine if it gets dirty – in any case, at least once
per week.
Cleaning agents
HINT
Do not use any alkaline cleaning agents. Alkaline cleaning agents can
impair the flavour of the coffee.
Items
Hopper
Collecting tray
Spout outside
Spout inside
Grinding chamber
Grinding discs
Casing outside
Cleaning agents
Do not use agents with an abrasive or scouring
effect! Use food-grade, neutral cleaning agents
which comply with hygiene regulations.
Use conventional cleaning agents for stainless
steel.
Only clean with a dry cloth or brush!
NOTICE
Do not use compressed air to blow off material from the machine and
do not spray with steam or water!This could short-circuit and thus dam-
age the machine.
9.1.1 Removing / Replacing the hopper
The bean hopper has to be removed to clean the grinding mechanism,
grinding discs and spout.
HINT
If there are still coffee beans inside the bean hopper, push in the hopper
slider into the hopper adapter. This prevents the coffee beans falling out
when you remove the hopper.
If you are using a bean hopper without a slider, it is recommended to
empty the hopper before removing it.
Procedure:
1. Disconnect the mains plug from the power outlet.
2. Use a (size 0) screwdriver to push the pin downwards and simultane-
ously rotate the bean hopper counter-clockwise.
3. Once the bayonet coupling has been released it is possible to lift up
and remove the bean hopper.
4. Replacing the bean hopper is carried out in reverse order, but without
pushing down the pin.

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LADENMÜHLEN SHOP GRINDER
NOTICE
Use a vacuum cleaner to remove any coffee beans from the grinding
chamber before replacing the bean hopper. The bayonet coupling has to
be clean and free from foreign material in order for it to close correctly.
9.1.2 Cleaning the grinding mechanism
CAUTION
The grinding discs must not be removed until the machine is completely
at rest! Before beginning this task, switch off the machine and pull out
the mains plug from the mains socket.
Procedure:
1. Disconnect the mains plug from the power outlet.
2. Remove the bean hopper as described in section 9.1.1 “Removing /
Replacing the hopper.
3. Lift and remove the cover plate (1) from the machine.
4. Use a (size 4) screwdriver to unscrew
the 3 screws (2).
5. Remove the stationary disc flange (3)
including the spout from the machine.
6. Clean the grinding discs (4) and re-
move any foreign matter. Please read
section 9.1 “Cleaning”.
7. Check the condition of the grinding
discs and insert new ones if they are
defective or worn.
8. Reassemble all the parts in reverse or-
der.
9. Replace the bean hopper as described in section 9.1.1 “Removing /
Replacing the hopper”.
HINT
Ensure that the mating surfaces are absolutely clean before reassembly!
Failure to do so will result in inconsistent grinds.
10. Reconnect the grinder to the power supply after complete reas-
sembly.
11. Turn the adjusting knob to coarse. In this way the discs cannot
be damaged in case of wrong assembly.
12. Switch-on the grinder and slowly turn the adjusting knob to
fine.
1
4
2
3

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LADENMÜHLEN SHOP GRINDER
HINT
If the grinding mechanism jams or if you hear the sound of grinding
discs rubbing against each other, re-calibrate the machine. For this, read
section 8.3 entitled “Calibrating the machine”.
9.1.3 Cleaning the spout
Procedure:
1. Disconnect the mains plug from the
power outlet.
2. Remove the bean hopper as described in
section 9.1.1 “Removing / Replacing the
hopper.
3. Lift and remove the cover plate (1) from
the machine.
4. Use a (size 3) screwdriver to unscrew the screw (2) of the spout.
5. Lift up the spout (3) until both screw heads (4) fit through the open-
ing. Subsequently remove the spout (3) towards the front.
6. Clean the spout and remove any foreign matter. Please read section
9.1 “Cleaning”.
7. Reassemble all the parts in reverse order.
8. Replace the bean hopper as described in section 9.1.1 “Removing /
Replacing the hopper”.
1
2
4
3
HINT
Ensure that the mating surfaces are absolutely clean before reassembly!
9. Reconnect the grinder to the power supply.
9.1.4 Cleaning the collecting tray
Clean the collecting tray daily if soiled. Please read section 9.1 “Cleaning”.
The collecting tray can be removed and re-placed without tools.
1
2

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LADENMÜHLEN SHOP GRINDER
9.2 Replacing components
9.2.1 Replacing the grinding discs
When the grinding quality is no longer as desired, this means that the
grinding discs need to be re-placed.
The grinding discs must not be removed until the
machine is completely at rest! Before beginning this
task, switch off the machine and pull out the mains
plug from the mains socket.
Procedure:
1. Remove the stationary disc flange
(1) according to the description
in the section 9.1.2 “Cleaning the
grinding mechanism” (steps 1-5).
2. Remove the grinding disc (2) from
the stationary disc flange (1), and
the grinding disc (3) from the rotat-
ing disc flange (4). The respective
procedure is described in the next
two sections.
3. Insert the new grinding discs.
HINT
Ensure that the mating surfaces are absolutely clean before reassembly!
Failure to do so will result in inconsistent grinds.
1
4
2
3
9.2.1.1Removing the grinding disc in the rotating flange,
without screws
Procedure:
1. Place a screwdriver (size 3) in the groove (1) at the grinding disc (2).
2. Rest the tip of the screwdriver on the facing edge and use it to lever
the grinding disc.
3. Once the grinding disc has overcome the magnetic attraction, it can
be removed manually.
Installation of the grinding disc is carried out in reverse order.
HINT
Ensure that the grinding discs are positioned correctly during installa-
tion. Observe the position of the driver!
HINT
Ensure that all the mating surfaces
are absolutely clean before reas-
sembly! Failure to do so will result
in inconsistent grinds.

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LADENMÜHLEN SHOP GRINDER
9.2.1.2Removing the grinding disc in the stationary flange,
without screws
Procedure:
1. Place a screwdriver in the groove (1) at the grinding disc (2).
2. Rest the tip of the screwdriver on the facing edge and use it to lever
the grinding disc.
3. Once the grinding disc has overcome the magnetic attraction, it can
be removed manually.
Installation of the grinding disc is carried out in reverse order.
HINT
Ensure that grinding discs are positioned correctly during installation.
Observe the position of the driver!
HINT
Ensure that all the mating surfaces
are absolutely clean before reas-
sembly! Failure to do so will result
in inconsistent grinds.
9.3 Maintenance work on the mains power supply
HINT
Work on current-bearing assemblies or components must only be car-
ried out by MAHLKÖNIG technicians or by a qualified specialist electri-
cian. Please see chapter 12 “Electrical wiring diagrams” for the circuit
diagrams.
Only open the grinder when it is completely idle.
Before opening the casing, switch off the machine
and disconnect the plug from the mains socket.
10 Protection devices / Faults
10.1 Protection devices
The grinder is protected by a temperature monitor in the motor coil and
equipped with additional over-load protection (Klixon). A micro switch
integrated in the upper part of the machine prevents the motor from
starting up if the cover plate or the bean hopper has been positioned
incorrectly.
Temperature monitor
The temperature monitor switches the grinder off as soon as the motor
coil is too hot. This can occur for example if the system is in continual
use. After the grinder has cooled down, the machine is ready for service
again.
Overload protection / Klixon
The overload protection is tripped if the current accepted by the grinder
is too high. This can occur if the grinding discs are blocked.

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LADENMÜHLEN SHOP GRINDER
If the short circuit protection has
tripped, it has to be reset manually:
• Tilt the grinder slightly to the
left.
• Press the button (1) on the bot-
tom of the grinder and subse-
quently replace the machine in
its original position.
10.2 Faults
HINT
Ensure that customers using the equipment on a self-service basis are
advised to call service staff in the event of a fault. Customers must not
attempt to correct faults themselves by tampering with the machine.
We recommend placing a notice in the immediate vicinity of the ma-
chine as follows:
In the event of a fault please notify sales staff!
10.2.1 Fault correction
Fault
The grinder cannot
be switched on
Indication
The grinder is not con-
nected to the power
supply
The overload protection
/ Klixon has tripped
The overload protec-
tion / Klixon has tripped
again
The building fuse has
tripped
The cover plate has
not been replaced or
has been incorrectly
replaced
Corrective action
Check and, if necessary,
connect the mains plug
Switch on the Klixon.
Read section 10.1 “Pro-
tection devices”
Check whether any
foreign matter is blocking
the grinding disc. Pro-
ceed as described in sec-
tion 9.1.2 “Cleaning the
grinding mechanism”.
Subsequently switch on
the Klixon. Read section
10.1 “Protection devices”
Check and, if necessary,
switch on the fuse
Check and replace cor-
rectly