DITTING KR 805 User manual

Operating Instructions
11.12.08 Art.-no. 64432B
Coffee Grinders
Type KR: 805
Voltage:
Serial No:

KR 805 Contents
11.12.08
Contents
1Introduction .......................................................................................................................1-1
1.1 Confirmation of receipt........................................................................................................1-2
1.2 Safety instructions...............................................................................................................1-3
1.3 Scope of the documentation ...............................................................................................1-3
1.4 Definition of the terms used ................................................................................................1-4
1.5 Copyright.............................................................................................................................1-4
2Safety and Warranty .........................................................................................................2-1
2.1 Explanation of safety instructions .......................................................................................2-1
2.2 General safety instructions..................................................................................................2-1
2.3 Electrical power...................................................................................................................2-2
2.4 Use in accordance with the intended purpose....................................................................2-3
2.5 Service staff requirements ..................................................................................................2-3
2.6 Warranty and liability...........................................................................................................2-3
3Description of the machine..............................................................................................3-1
3.1 Function principle................................................................................................................3-1
3.1.1 Design of the machine ........................................................................................................3-1
3.2 Technical data.....................................................................................................................3-1
3.2.1 Power supply.......................................................................................................................3-2
3.2.2 Noise emission....................................................................................................................3-2
4Packaging and transport..................................................................................................4-1
4.1 Packing the machine...........................................................................................................4-1
4.2 Unpacking the machine.......................................................................................................4-1
5Positioning the machine...................................................................................................5-1
5.1 Installation site requirements ..............................................................................................5-1
6Installing the machine ......................................................................................................6-1
6.1 Installation...........................................................................................................................6-1
6.2 Installing the collecting tray.................................................................................................6-1
6.3 Electrical installation............................................................................................................6-1
7Start up...............................................................................................................................7-2
8Operation ...........................................................................................................................8-1
8.1 Conditions for machine operation .......................................................................................8-1
8.2 Operating.............................................................................................................................8-1
8.3 Calibrating the machine ......................................................................................................8-2

KR 805 Contents
11.12.08
9Maintenance ......................................................................................................................9-1
9.1 Cleaning..............................................................................................................................9-1
9.1.1 Removing / Replacing the hopper.......................................................................................9-2
9.1.2 Cleaning the grinding mechanism.......................................................................................9-3
9.1.3 Cleaning the delivery tube...................................................................................................9-4
9.1.4 Cleaning the collecting tray.................................................................................................9-4
9.2 Replacing components........................................................................................................9-5
9.2.1 Replacing the grinding discs...............................................................................................9-5
9.2.1.1 Removing the grinding disc in the rotating flange, without screws.....................................9-6
9.2.1.2 Removing the grinding disc in the stationary flange, without screws .................................9-6
9.2.1.3 Removing the grinding disc in the rotating and stationary flange, with screws ..................9-7
9.3 Maintenance work on the mains power supply...................................................................9-7
10 Protection devices / Faults.............................................................................................10-1
10.1 Protection devices.............................................................................................................10-1
10.2 Faults.................................................................................................................................10-1
10.2.1 Fault correction .................................................................................................................10-2
11 Waste disposal................................................................................................................11-1
12 Electrical wiring diagrams..............................................................................................12-1
13 Contact addresses..........................................................................................................13-1
14 Index.................................................................................................................................14-1

KR 805 Introduction
11.12.08 1-1
1 Introduction
To the Customer
Congratulations on purchasing our Coffee Grinder. We have prepared these Operating Instructions to
simplify your use of the Coffee Grinder. They contain information, advice and instructions to enable you
to get the best possible service from your unit.
Your Coffee Grinder has been manufactured to a high Quality and Safety Standard. However, there is
always the possibility of damage to the unit or personal injury if you misuse or fail to operate and use
the machine correctly.
Therefore, please pay close attention to these Operating Instructions, which will assist you in the correct
use of the Coffee Grinder (also referred to below as the machine) and the avoidance of improper use.
If you comply closely with the attached instructions you will prevent hazards, reduce repair and down
times and increase the reliability and life of your machine.
To ensure that you and your employees have taken note of the content of the Operating Instructions,
and for your own safety, we would ask you to complete the Confirmation of receipt printed on the fol-
lowing page, detach it along the marked line and return it to us.
This machine has been manufactured in accordance with the latest engineering methods and upholds
the long-standing tradition of Swiss quality work, productivity and safety associated with Ditting Maschi-
nen AG. In particular the machine is in accordance with the standard IEC 60335 and the following
changes.
It is not possible for these Operating Instructions to cover every conceivable use. If you need further in-
formation or if you encounter particular problems which you feel these Operating Instructions do not co-
ver in sufficient depth, please ask for the information you need from your local specialist dealer, or direct
from us.

KR 805 Introduction
11.12.08 1-2
1.1 Confirmation of receipt
To confirm the Operating Instructions are handed to and received by the final consumer.
IMPORTANT
The following confirmation should be completed by the purchaser. The purchaser
undertakes to return this confirmation to us. The purchaser hereby confirms that he
has taken note of the contents of the Operating Instructions for art.-no 64432A and
that his attention has been drawn in particular to the relevant safety instructions
regarding the use of the machine.

KR 805 Introduction
11.12.08 1-3
1.2 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 Operating Instructions be-
fore starting the machine up and that they are familiar with all its functions including proce-
dure in the event of a fault.
•The machine should not be used by persons (including children) with physical, sensory or
learning difficulties or who lack sufficient experience 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 clearly 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 tam-
pering with the machine.
•The machine must be located in the sales areas such that customers always have direct ac-
cess 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 DITTING.
•Never insert fingers or objects into the bean hopper.
•Never touch the electrical components with conducting objects, such as needles, pins, cut-
lery etc.!
•Ensure that the machine is electrically protected with circuit breakers or fuses in accordance
with the nameplate and local regulations.
1.3 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.

KR 805 Introduction
11.12.08 1-4
1.4 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 machine.
Service staff
Service staff are defined as persons engaged by the operator for the servicing and upkeep of the ma-
chine. It is essential that service staff have read and understood the Operating and Maintenance In-
structions. Service 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 responsible must have both technical knowledge and practical skills. It is
essential 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 agreements. The operator purchases
the machine and allows it to be used for the purpose he intends.
1.5 Copyright
These Operating Instructions must be treated in confidence. All the information and data supplied in
these Operating Instructions are protected 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, cop-
ied, microfilmed, nor passed to third parties without the consent of Ditting Maschinen AG. Breaches of
copyright give rise to claims for compensation.

KR 805 Safety and warranty
11.12.08 2-1
2 Safety and Warranty
2.1 Explanation of safety instructions
All safety instructions in these Operating Instructions provide timely advice regarding possible dangers
to life and limb, possible damage to the machine and how to maintain operation without defects.
All locations that are particularly important feature a warning sign. This information must be read and
followed.
Meanings:
DANGER
DANGER indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING
WARNING indicates a hazardous situation which, if not avoided, could result in death
or serious injury.
CAUTION
CAUTION indicates a hazardous situation which, if not avoided, may result in minor
or moderate injury.
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, operation and maintenance (inspection,
maintenance, repair) of the machine must have read and understood the whole of the Operating In-
structions, and in particular the chapter 2 “Safety and warranty”.
•This machine has been manufactured and assembled in accordance with the latest technology. Par-
ticular attention has been given to the safety of the user and the ergonomic layout of the operational
controls.
•All safety and protection devices are components of a safety design philosophy that has the objec-
tive of protecting all persons who work with the machine from any danger.

KR 805 Safety and warranty
11.12.08 2-2
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 without defects.
WARNING
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 protection 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 au-
thorized customer service outlet.
2.3 Electrical power
DANGER
Never touch parts that are exposed to electrical voltage. 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 re-
placed immediately by authorized specialist personnel or by our Customer Services department.
NOTICE
Before connecting the machine to the mains, check whether the local operating voltage, fre-
quency and circuit breakers/fuses match the data shown on the nameplate and with the techni-
cal data in these Operating Instructions. If the data does not match, do not connect the machine
to the mains!

KR 805 Safety and warranty
11.12.08 2-3
2.4 Use in accordance with the intended purpose
The sole function of the Coffee Grinder is to dispense whole roasted coffee 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 hop-
per and reground.
NOTICE
Only coffee beans may be loaded into the bean hopper. Do not put other 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 accordance with the intended
purpose. Use in accordance with the intended purpose also includes observation of operating
and maintenance conditions 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 sa-
fety is concerned, no one is unclear as to who is responsible for what. The operator must take care that
no unauthorized persons perform such tasks on the equipment.
2.6 Warranty and liability
The warranty is limited to the replacement of defective parts. The manufacturer shall not be liable in re-
spect of claims in excess of this. Spare parts must conform to the technical specifications of the manu-
facturer. Use only Ditting – 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 permitted. The operator must not convert or modify the machine.

KR 805 Description of the machine
11.12.08 3-1
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. Depending on the model
(KR 805), actual operation of the machine may vary slightly from the information specified in these Op-
erating Instructions.
3.1.1 Design of the machine
Names of the components
1 Cover
2 Hopper
3 Clamping lever
4 Delivery tube
5 Bag shaker
6 Collecting tray
7 Slide gate
8 Grinding fineness adjusting
knob
9 Nameplate
10 ON/OFF-switch
11 Mains cable
12 Klixon overload protection
Fig. 3/1
3.2 Technical data
4 versions of the machine are available:
Type Grinding disc Grinding capacity*
for medium fineness Capacity Weights
KR 805 ø 80 ~ 650 g/min. 1.5 kg 17 kg
* depends on the degree of roast and the coffee beans
Standard version includes:
•Coffee Grinder with hopper capacity 1.5 kg with slide gate

KR 805 Description of the machine
11.12.08 3-2
3.2.1 Power supply
The power supply ratings depend on the customer’s mains power supply. Please note the nominal rat-
ings on the nameplate fixed to the rear of the machine.
Please see chapter 12 "Electrical wiring diagrams" for the electrical wiring diagrams.
3.2.2 Noise emission
Equivalent persistent noise pressure level when grinding is 77 dB (A).

KR 805 Packaging and transport
11.12.08 4-1
4 Packaging and transport
4.1 Packing the machine
The machine must be packed appropriately to keep it safe during transport. 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 installation site. Read the chapter
5.1 entitled “Installation site requirements”.
2. Remove the packaging and check the whole shipment for completeness as detailed on the delivery
note and for any damage caused during transport.
3. If you discover transport damage, notify both the transport and dispatching companies immediately.
Please refer to the chapter 13 entitled “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.

KR 805 Positioning the machine
11.12.08 5-1
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, non-slip 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 associ-
ated with electrical equipment.
HINT
The mains plug has to be easily accessible after installation!

KR 805 Start up
11.12.08 6-1
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 support 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 mount-
ing brackets (2).
Fig. 6/1
6.3 Electrical installation
NOTICE
Before connecting the machine to the mains, check whether the local operating voltage, fre-
quency and circuit breakers/fuses match the data shown on the nameplate and with the techni-
cal 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 “Technical data” and the circuit diagram.
The later is located in the chapter 12 entitled “Electrical wiring diagrams”.
Coffee Grinder Type KR 805:
The grinders are partially factory-equipped with a 3-wire electric cable with mains plug.
•Connect the grinder to the mains supply.
•(Attach the electric cable to a plug which is suitable for the local conditions. The plug must only be
attached by a qualified electrician.)

KR 805 Start up
11.12.08 7-2
7 Start up
HINT
Start up must only be carried out by Ditting Customer Services or a representative authorized
by Ditting! This will be an opportunity for thorough familiarization of your service staff with the
machine’s operations.
NOTICE
Carrying out the start up yourself can lead to personal injury and damage to property and as-
sets!
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?
•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?

KR 805 Operation
11.12.08 8-1
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 “In-
stallation”.
•The installation check as been carried out as described in the chapter 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).
NOTICE
Only whole coffee beans may be loaded into the bean
hopper. Do not put ground coffee into the bean hop-
per! 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 simultaneously place an
empty bag (4) over the delivery tube (6). Always release
the clamping lever (5) before removing the bag (4).
NOTICE
Ensure that the bag is fully open before placing and
fastening it over the delivery tube (6)! 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 slide gate (7) has been opened as shown.
Fig. 8/1
Fig. 8/2

KR 805 Operation
11.12.08 8-2
6. Start the grinding motor by setting the ON/OFF switch (8)
to ON (I).
7. After grinding, always set the ON/OFF switch (8) to "OFF"
(0).
8. Keep hold of the bag (4), raise the clamping lever (5) to
the limit stop and release it. The lever returns to its initial
position, thus ensuring that the delivery tube (6) is emp-
tied correctly.
9. Repeat point 8 two or three times until there is no coffee
powder stuck to the delivery tube.
10. Keep hold of the bag and raise the clamping lever (5)
again in order to remove the bag.
Fig. 8/3
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 determines 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 OFF 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.
3. Turn the adjusting knob (2) clockwise until the limit
stop.
4. Pull out the adjusting knob to disengage it from the
limit stop and rotate it further. Subsequently release
and push in the adjusting knob until it re-engages. Fig. 8/4
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 results in a
coarser grind.

KR 805 Operation
11.12.08 8-3
7. Pull out the adjusting knob again at this position and turn it until # 1 is aligned to the arrow (3).
Release and 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.

KR 805 Maintenance
11.12.08 9-1
9 Maintenance
Careful upkeep and regular maintenance will ensure that your machine gives trouble-free service. The
above 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
Ditting Customer Services since these tasks require specialist knowledge and particular skills.
Neither can be obtained by reading these Operating Instructions.
WARNING
The grinder must not be opened until the machine is completely at rest. Before open-
ing 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 Ditting Customer Services for all maintenance work. Please refer to the chap-
ter 13 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
9.1 Cleaning
HINT
Cleaning must be carried out by service staff!
NOTICE
Foreign matter should not enter the grinding chamber!
•Always clean the machine if it gets dirty – in any case, at least once per week.
Cleaning agents
Items Cleaning agents
Hopper
Collecting tray Do not use agents with an abrasive or scouring effect! Use food-grade, neu- tral cleaning agents which comply with hygiene regulations.
Delivery tube outside Use conventional cleaning agents for stainless steel.
Delivery tube inside
Grinding chamber
Grinding discs
Casing outside
Only clean with a dry cloth or brush!