KF 1800 EN - Ditting Maschinen AG
Operating instructions

KF 1800
TYPE
Voltage
Manuf. no.
Your service centre ...............................................
64403 A 95/26
Page 1 - 16

Operating instructions
Contents
page
1
General
1.1
1.2
1.3
1.3.1
Warranty information
Transfer declaration
General safety instructions
Information and safety symbols
2
Installation of coffee grinder
2.1
2.2
2.3
2.3.1
2.4
Description of unit
Installation information
Assembly before using the first time
Basic setting (calibration)
How to use the coffee grinder
3
Care / Maintenance / Adjustment
3.1
3.2
3.3
3.3.1
3.3.2
3.4
Care and cleaning of the coffee grinder
Maintenance
Setting the scale (adjustment)
Increasing the grinding disc clearance
Reducing the grinding disc clearance
Replacing the grinding discs
4
Faults / action
4.1
4.1.1
4.2
4.2.1
4.2.2
Action in event of fault
Table with possible malfunctions
Repairs
Unblocking the grinding unit
Unblocking the discharge tube
13
13
14
14
15
5
Customer service
16
6
Appendix
6.1
6.2
6.3
Electrical wiring diagram
Spare-parts list
Section drawing
3
4
5
6
6
7
7
8
9
10
10
10
11
11
12
A1
A2
A3
64403 A 95/26
Page 2 - 16
Operating instructions
1

General
Dear Customer,
We congratulate and thank you for purchasing a DITTING quality product. These operating
instructions have been prepared to simplify your use of the coffee grinder. They contain
information, advice and instructions for the best use of your unit.
1.1
Warranty information
ALTHOUGH YOUR COFFEE GRINDER IS DISTINGUISHED BY A HIGH QUALITY AND
SAFETY STANDARD, DAMAGE TO MATERIAL OR RISK OF INJURY CANNOT BE
EXCLUDED IF OPERATED INCORRECTLY, USED IMPROPERLY OR MISUSED.
THE OPERATING INSTRUCTIONS WILL THEREFORE FAMILIARISE YOU WITH
CORRECT USE OF THE COFFEE GRINDER AND ASSIST YOU TO AVOID WRONG
OPERATIONS. IF THE ENCLOSED INSTRUCTIONS ARE FOLLOWED EXACTLY, YOU
WILL AVOID DANGERS, REDUCE REPAIR AND STOPPAGE TIMES AND INCREASE
THE RELIABILITY AND SERVICE LIFE OF YOUR UNIT.
TO ENSURE THAT YOU AND YOUR EMPLOYEES TAKE NOTICE OF THE CONTENTS
OF THE OPERATING INSTRUCTIONS AND FOR YOUR OWN SAFETY, WE WOULD ASK
YOU TO COMPLETE THE TRANSFER DECLARATION PRINTED ON THE FOLLOWING
PAGE, DETACH THIS ALONG THE PERFORATION AND RETURN IT TO YOUR DEALER.
64403 A 95/26
Page 3 - 16

Operating instructions
1.2
Transfer declaration
To ensure transfer of the operating instructions to final consumers
Note: The following declaration should be completed by the dealer and the purchaser. The
purchaser undertakes to return this declaration to the dealer. The purchaser thereby certifies
that the dealer has drawn his attention to the contents of operating instructions no. 64403, in
particular to the relevant safety instructions for use of the machine.
64403 95/26
page 4 - 16
✂
Transfer declaration
(1) Type
Machine no.
(2) Address of customer
(3) The machine specified in (1) was purchased by me. The complete operating
instructions were handed to me with transfer of the machine.
_______________________
Signature of customer
_______________________
Place / date
(4) Date of transfer
(5) Address of dealer/importer
__________________________
Company stamp/signature
(6) The machine was handed to the customer in accordance with the guidelines of
the manufacturer.
Company stamp/signature if not identical with (5)
_____________________________
Signature of customer servicespecialist
64403 A 95/26
_______________________
Date
Page 4 - 16

Operating instructions
1.3
General safety instructions
• The operating instructions must be kept permanently at the place of operation of
the machine and if possible attached at the point of installation in the immediate
vicinity of the machine.
• The competent service personnel must have read the operating instructions before
putting the coffee grinder into operation and be familiar with all functions including
action in the event of a fault.
• Only original spare-parts must be used for repairs to the grinder. If spare-parts
from other manufacturers are used, the serviceability of the grinder may be
impaired. In addition, further injury to persons or material damage cannot be
excluded.
• Only original grinding discs sharpened by DITTING must be used.
• Never reach into the hopper opening while the machine is running.
• Never touch electrical components with conducting objects, such as needles, pins,
cutlery, etc. !
• The emission value referred to the workplace is 78,5 dB(A).
• Any modification to the setting of the motor protection switch must only be
performed by a qualified electrician.
• The magnet in the hopper must not be removed.
• The machine must be electrically protected by fuses according to the nameplate
and the local regulations.
64403 A 95/26
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
Operating instructions
1.3.1
Information and safety symbols
Two information symbols are used in these operating instructions to emphasise important
comments in the text:
Information
This symbol indicates information containing important data concerning
efficient use. Non-observance can lead to faults.
Safety
This symbol indicates information which if not observed can lead to danger to
persons and/or substantial material damage. The safety instructions must be
followed without fail.
2
Installation of coffee grinder
2.1
Description of unit
The KF 1800 coffee grinder is suitable for grinding various kinds of coffee. The grinding
fineness can be set fully variably with a handwheel. The KF 1800 coffee grinder is suitable
for use in roasting plants and coffee wholesaling businesses.
Hopper
Slide
Handwheel
ON/OFF switch
Scale ring
Discharge tube
(spout)
Overcurrent
release
Nameplate
64403 A 95/26
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
Operating instructions
2.2
Installation information
The grinder must only be installed in dry areas!
Screw the coffee grinder firmly to the floor. Before connecting the coffee
grinder to the mains supply, ensure that this supply corresponds with the data
on the unit nameplate.
As a protection against water and moisture the inside of the grinding housing
may have been treated with special grease used by the foodstuffs industry.
The protective film (grease) must be removed fully with a cloth before
assembling and operating the coffee grinder.
The coffee grinder must only be connected to the mains supply by a qualified
electrician.
If the grinder is connected directly to the mains, a mains switch must be fitted
by a qualified electrician which can be opened.
2.3
Assembly before using the first time
The initial assembly of the coffee grinder must be performed without fail in the
sequence described and according to the following description.
All supporting surfaces must be absolutely clean before assembly.
4
-
The unit, comprising stationary disc flange
(1) and hopper (2) is mounted on the
grinding housing (3). The screws (4)
provided for this purpose must be tightened
evenly with the hex. spanner supplied.
2
1
3
6
Then screw discharge tube (6) to the front
of the grinding housing (3) with screws (7).
-
7
Switch on motor in steps: - first to 1st stage (Y star) and then to
2nd stage (∆
∆ delta).
64403 A 95/26
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
Operating instructions
When switching on the coffee grinder, never omit the 1st stage, since
otherwise the overcurrent release of the motor protection switch will operate.
If the motor protection switch nevertheless operates, the following points
should be followed:
- 1. Set ON/OFF switch to position 0.
- 2. Close motor protection switch again.
- 3. Switch on motor in steps with the ON/OFF switch.
-
2.3.1
-
Fit handwheel with shaft (8) and scale ring (9).
Basic setting (calibration)
Turn handwheel (8) clockwise until the
sound of grinding discs rubbing together
can be heard. Turn scale ring (9) to stop
(setting 1) and tighten one grub screw (10)
slightly. Turn handwheel (8) back to
position 10 of the scale ring. Release grub
screw again, turn scale ring (9) to stop
(setting 1) and tighten both grub screws
firmly.
10
8
9
There must be no sound of grinding discs rubbing
together at scale position 1 = excessive wear of
grinding discs.
64403 A 95/26
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
Operating instructions
2.4
How to use the coffee grinder
3
-
Close slide (1).
-
Set the required grinding fineness with
handwheel (2) and according to scale.
For every adjustment of the grinding fineness the
maximum possible scale setting 48 must be
selected first and only then turned to the desired
scale position.
-
1
Empty coffee beans in hopper (3).
5
2
-
Place container under discharge tube (4).
-
Switch on motor in steps (5): - first to 1st
stage (Y star), then to 2nd stage (∆
∆ delta).
4
When switching on the coffee grinder, never omit the 1st stage, since otherwise
the overcurrent release of the motor protection switch will operate.
If the motor protection switch nevertheless operates, the following points should
be followed:
- 1. Set ON/OFF switch to position 0.
- 2. Close motor protection switch again.
- 3. Switch on motor in steps with the ON/OFF switch.
-
Open slide (1).
-
After completing grinding, close slide (1), allow grinder to run
empty and then switch off motor.
Only grind whole coffee beans!
Coffee already ground must not be ground again!
64403 A 95/26
Page 9 - 16

Operating instructions
3
Care / maintenance / adjustment
3.1
Care and cleaning of coffee grinder
The coffee grinder must only be cleaned with a dry cloth.
Do not use an alkaline cleaning agent.
Do not spray coffee grinder with water and/or steam.
Reason: It can result in a short-circuit and therefore damage to the
unit. The use of alkalis can affect the flavour of the coffee.
The coffee grinder should be cleaned at least once weekly and always if soiled.
The coffee grinder must be disconnected from the mains supply before
cleaning and maintenance.
3.2
Maintenance
If the grinding quality is no longer of the required standard, the grinding discs must be
replaced.
Periodic checking of the grinding quality and grinding discs must only be
performed by competent specialists and/or service personnel.
3.3
Scale setting (adjustment)
Setting of the scale (with the handwheel) makes the fineness of the ground coffee
correspond with the fineness set on the scale.
Setting of the scale must only be performed by persons familiar with the unit
after carefully reading the following instructions.
The basic setting according to 2.3.1 should be made:
- following change of grinding discs
- following inadvertent displacement of the scale
setting
If the basic setting is incorrect, friction can occur between the grinding discs,
resulting in excessive wear.
64403 A 95/26
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
Operating instructions
3.3.1
Increasing the grinding disc clearance
An increase of the grinding disc clearance is necessary if generally coarser grinding is
required.
-
First set handwheel (1) to scale position
48- and then turn clockwise to the new
grinding fineness required.
2
1
-
Release the two grub screws (2) on scale
ring (3) and turn scale ring (without
handwheel) to the stop, i.e. setting 1.
-
Tighten the two grub screws firmly.
3
There must be no sound of grinding discs rubbing together at scale position 1
= excessive wear of grinding discs.
3.3.2
Reducing the grinding disc clearance
A reduction of the grinding disc clearance is necessary if, for example, the discs have
become worn after a certain time.
-
Switch on motor in steps: - first to 1st stage (Y star) and then to
2nd stage (∆
∆ delta).
When switching on the coffee grinder, never omit the 1st stage, since
otherwise the overcurrent release of the motor protection switch will operate.
If the motor protection switch nevertheless operates, the following points
should be followed:
- 1. Set ON/OFF switch to position 0.
- 2. Close motor protection switch again.
- 3. Switch on motor in steps with the ON/OFF switch.
64403 A 95/26
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
Operating instructions
-
Release the two grub screws (2) on scale
ring and turn handwheel (1) clockwise until
the sound of grinding discs rubbing
together can be heard. Turn scale ring (3)
to stop (setting 1) and tighten one grub
screw (2) slightly. Turn the handwheel (1)
back approx. 10 divisions measured on the
scale. Release grub screw again, turn
scale ring (3) to stop (setting 1) and tighten
both grub screws firmly.
2
1
3
There must be no sound of grinding discs rubbing together at scale position 1
= excessive wear of grinding discs.
-
3.4
Switch off motor.
Replacing grinding discs
Before changing grinding discs switch off motor without fail and disconnect
power cable!
The grinding discs must only be replaced by persons familiar with operation of
the machine according to the following instructions.
-
-
-
2
Switch off motor and pull out power cable.
Turn handwheel (1) to coarse grinding
scale position 48.
3
Release screws (2) with socket spanner
supplied and remove stationary disc flange
with hopper (3). Microswitch interrupt live
circuit.
5
6
The worn grinding discs can then be
replaced by releasing screws (4) on the
stationary and rotating disc flange (5 + 6).
4
1
All supporting (mating) surfaces of stationary disc flange, rotating disc flange,
grinding discs and grinding case must be absolutely clean before assembly.
Only in this way can perfect grinding be guaranteed.
64403 A 95/26
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
Operating instructions
-
Screw new grinding discs to the cleaned stationary and
rotating disc flanges (5 + 6).
-
For resharpened grinding discs the shims if supplied should
be inserted between grinding disc and flange.
-
Then re-assemble parts in reverse sequence.
-
Plug in power cable, switch on coffee grinder briefly, 1st stage
only (Y star). If it blocks or there is a sound of metal parts
rubbing together, the grinding disc clearance must be increased
according to 3.3.1.
-
Perform basic setting according to 2.3.1.
4
Faults / action
4.1
Action in event of a fault
The grinder must only be opened, inspected and dismantled by persons
familiar with the method of operation of the machine, who have previously
read these operating instructions through carefully.
4.1.1
Table with possible malfunctions
Fault
Result
Action (information text)
Grinder cannot be Overcurrent release is
switched on
operated
Grinder jams,
motor does not
start
Irregular grinding
Increased amount
of dust
Microswitch is interrupt
Overcurrent release is
operated
Check power cable, connection and
building fuses, close motor protection switch again.
Check Microswitch
Unblock discharge tube
Unblock grinding unit
Close motor protection switch again
Check grinding discs for wear and
replace if necessary
Check grinding discs for wear and
replace if necessary
64403 A 95/26
Re.
4.2.2
4.2.1
3.4
3.4
Page 13 - 16

Operating instructions
4.2
Repairs
Switch off motor and pull out power cable before all major repairs requiring
work inside the machine, in order to avoid danger of injury while working on
motor while running and electric shock!
The electrical wiring diagram for this unit is enclosed in the Appendix of this
operating manual, section A1.
4.2.1
-
-
Unblocking grinding unit
First turn handwheel (1) to coarse grinding
(scale position 48) and switch on motor
briefly, 1st stage only (Y star). This
frequently unblocks the grinder and
extracts any foreign bodies in the grinding
unit.
If the grinder is still blocked, switch off
motor and withdraw power cable.
-
Release screws (2) with socket spanner
supplied and remove stationary disc flange
with hopper (3). Microswitch interrupt live
circuit.
-
Remove foreign bodies. Check grinding
discs for possible damage. If these are
damaged, continue according to 3.4.
2
3
1
All supporting surfaces of stationary disc flange, rotating disc flange, grinding
discs and grinding case must be absolutely clean before assembly.
Only in this way can perfect grinding be guaranteed.
-
Then re-assemble parts in reverse sequence.
-
Plug in power cable, switch on coffee grinder briefly, 1st stage
only (Y star). If it blocks or there is a sound of metal parts
rubbing together, the grinding disc clearance must be increased
according to 3.3.1
-
Perform basic setting according to 2.3.1.
64403 A 95/26
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
Operating instructions
4.2.2
Unblocking discharge tube
-
First turn handwheel (1) to coarse grinding
(scale position 48) and switch on motor
briefly, 1st stage only (Y star). This
frequently unblocks the grinder and
extracts any foreign bodies in the grinding
unit.
-
If the grinder is still blocked, switch off
motor and withdraw power cable.
1
-
-
3
Release screws (2) of the discharge casing
and eliminate the blockage in the spout
(discharge) (3) and outlet pipe (4).
Ensure without fail before assembly that
the supporting surfaces of spout (3) and
grinding housing (5) are absolutely clean
and lie flat. The ground coffee can only run
through the spout in an optimum form in
this way.
-
Then re-screw spout (3) to the grinding
housing (5).
-
Connect power cable to mains supply
again.
64403 A 95/26
2
5
4
Page 15 - 16

Operating instructions
5
Customer service
If it is found during maintenance that the grinding discs must be resharpened/replaced or
other repairs must be made, the nearest service centre (see page 1) should be contacted or
direct connection made with the factory.
New grinding discs, spare-parts and accessories (also at intermediate times) can be ordered
from our customer service or the relevant agent.
The grinding discs can be resharpened
once or twice at the factory.
Data such as manufacturing number and type of power supply as specified on the
nameplate of the coffee grinder should be stated on orders for grinding discs, spare-parts
and accessories to ensure rapid and efficient advice and delivery.
Ditting Maschinen AG
Länggenstrasse 34
P.O. Box 241
CH-8184 Bachenbülach
Switzerland
Phone: +41 44 864 18 00
Fax: +41 44 864 18 01
e-mail: info@dittingswiss.ch
www.dittingswiss.ch
Subject to technical modification.
64403 A 95/26
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