GRAEF CC80 Knife Sharpener

PRODUCT OVERVIEW

PRODUCT DESCRIPTION

1. On / off switch
2. Stage 1, sharpening 15° knives
3. Stage 2, sharpening 20° knives
4. Stage 3, polishing

PREFACE

Dear Customer,
You have made a good choice by buying this food slicer. You have purchased a highly appreciated quality product.
Thank you very much for buying our product. We wish you a lot pleasure with your new food slicer from Mohn.

INFORMATION ON THESE OPERATING INSTRUCTIONS

These operating instructions are an integral part of the food slicer (in the following referred to as unit) and provide you with important information about initial operation, commissioning, security, intended use and care of the unit.
The operating instructions shall have to be available at the unit at all times. The instructions have to be read and applied by every person who is in charge for:

• Putting into operation,
• Operation,
• Fault correction and/or
• Cleaning

Keep these operating instructions and pass them on to the next owner along with the unit.
These operating instructions cannot take into consideration every conceivable use. For further information or in case of problems which are not dealt with or not dealt with sufficiently in these instructions, please get in touch with Graef customer service or your specialist dealers.

WARNING MESSAGES
In these operating instructions, the following warning messages and signal words are used:

• WARNING
  This refers to a potentially dangerous situation. Failure to observe this warning may result in serious  injury or even death.
• CAUTION
  This refers to a potentially dangerous situation. In case of non-observation of this warning message, material damage may occur.
• IMPORTANT!
  This refers to application tips and other especially important information!

GENERAL SAFETY INSTRUCTIONS

This device conforms to the relevant safety regulations. For safe handling of this unit, please observe the following safety instructions:

• However, incorrect handling may lead to injury and damage.
• Before using this device for the first time, check it for visible outer damages on the housing, connection cable and plug.
• Do not operate a damaged unit.
• If the connection cable is damaged, it must be replaced by the manufacturer, the after-sales service or a similarly qualified person in order to prevent danger.
• Repairs must be carried out by an expert or by Graef after-sales service only. Incorrect repairs may cause considerable hazards for the user. In addition, any claim under guarantee is forfeited.
• Defective parts must be replaced by original spare parts only. Only these parts are guaranteed to meet the safety requirements.
• This unit must not be used by children. Keep the unit and its connection cable away from children.
• Children should be supervised in order to make sure that they do not play with this unit.
• This unit can also be used by persons with reduced physical, sensory or mental capabilities or lack of experience and/or knowledge if they have been given supervision or instruction concerning use of the unit in a safe way and understand the hazards involved.
• The unit is not intended to be used with an external timer or a separate remove control.
• Always disconnect the connection cable by using plug; do not pull the connecting cable.
• Make sure that the power cable does not get caught anywhere. This could cause the fall of the unit.
• Packaging materials must not be used for playing. There is danger of suffocation.
• Always switch off the unit and disconnect it from the power supply when you are not using it or when the unit is unattended. The same applies before cleaning and maintaining the unit or when replacing accessories.
• Make sure that only clean knife knives are inserted.
• The knife sharpener is used for sharpening kitchen knives, pocket knives and certain sports knives. Do not try to sharpen scissors, axe knives, ceramic knives or other knives that cannot be easily inserted into the sharpening slots.
• CAUTION: The knives are very sharp after sharpening.
• Do not use grinding oil, water or other lubricants.

DANGER CAUSED BY ELECTRIC CURRENT

WARNING

• Mortal danger is caused by contact with live cables or components!
• Please observe the following safety instructions in order to prevent exposure to electric current:
• Do not use the unit if the connecting cable or plug is damaged.
• In this case, you should let the Graef Customer Service or an authorized specialist install a new connecting cable before re-using the unit.
• Do not open the housing under any circumstances. When touching live connections and if the electric and mechanical structure is changed, there is danger of electric shock.
• Never touch live parts. They may cause an electric shock or even may lead to death.

INTENDED USE

• This unit is not intended for commercial use. Use the unit for sharpening knives only.
• This appliance is intended for domestic and similar use, such as:
• Staff kitchens in shops and office
• In agricultural estates
• By guests in hotels, motels and other living quarters
• In bed and breakfast boarding houses

IMPORTANT!

• Use only in household-like areas!
• Another or any exceeding use shall not be considered intended.

CAUTION
This unit can pose a hazard if not used properly.

• Use the unit exclusively as intended.
• Observe the procedures described in these operating instructions.
• Claims of any kind caused by damage by unintended use shall be excluded.
• The risk shall be borne solely by the user.

LIMITATION OF LIABILITY

All technical information, data and instructions for installation, operation and maintenance contained in these operating instructions correspond to the latest status at the time of printing and are based on our previous experience and knowledge to the best of our knowledge.

• No claims may be derived from the particulars, illustrations and descriptions in these instructions.
• The manufacturer shall not assume any liability for damage caused by:
• non-observation of the instructions
• unintended use
• incorrect repairs
• technical modifications
• use of unapproved spare parts

Translations shall be carried out to the best of knowledge. We shall not assume any liability for translation mistakes. The original German text only shall be binding.
The digital version of these operating instructions can be found on the product page of the all-purpose slicers at www.graef.de

AFTER-SALES SERVICE

If your Graef unit is damaged, please contact your dealer or the Graef Customer Service at +49 (2932) 9703-677 or write an e-mail to service@graef.de

IMPORTANT!
Keep the original packaging during the warranty period so that you can pack and transport the unit properly in the event of a warranty claim.

UNPACKING
When unpacking the unit, proceed as follows:

• Remove the unit from the box.
• Remove the packaging parts.
• Remove any stickers on the unit. Do not remove the type plate!

DISPOSAL OF THE PACKAGING

The packaging protects the unit against transport damage. The packaging materials are selected  according to the environmental compatibility and disposal-related aspects and can therefore be recycled.
Returning the packaging to the material cycle saves raw materials and reduces the amount of waste. Dispose of the packaging material no longer needed at collection points for the “Green Dot” recycling system (in Germany).

DISPOSAL OF THE UNIT

At the end of its service life, this product cannot be disposed of in normal domestic waste. The symbol on the product and in the operating instructions point out to this fact. Reuse the materials according to their marking. With the reuse, recycling or other forms of recycling of old equipment, you make an important contribution to the protection of our environment. Please ask your municipal administration for the disposal point.

REQUIREMENTS ON THE INSTALLATION LOCATION

For safe and fault free operation of the unit, the following requirements of the installation location have to be met:

• The unit has to be placed on a solid, flat, horizontal, and non-slipping surface with a sufficient weight-carrying capacity.
• Make sure that the unit cannot topple over.
• Choose the location in such a way that children cannot reach the unit.
• Do not place the unit on or near hot surfaces such as hobs.
• Never use the unit outdoors, and always keep it in a dry place.
• The unit is not designed for installation in a wall or a built-in cupboard.
• Do not set up the unit in a hot, wet or moist environment.
• The socket has to be easily accessible so that the power cable can be removed easily in case of emergency.

ELECTRICAL CONNECTION

For safe and fault-free operation of the unit, the following requirements have to be met during the electrical connection:

• Before connecting the unit, compare the connecting data (voltage and frequency) on the type plate with those of your energy network. These details must correspond so that no dam-age occurs to the unit. In case of uncertainty, contact a qualified electrician.
• The socket has to be protected at least by a 10 amps circuit breaker.
• Make sure that the connecting cable is not damaged and not laid across hot surfaces or sharp edges.
• The connecting cable must not be stretched tightly.
• The electric safety of the unit is ensured only when it is connected to a socket with protec-tive conductor installed correctly. Operation on a socket without protective conductor is forbidden. If in doubt, let the house installation be checked by a skilled electrician. The man-ufacturer does not assume responsibility for damage which has been caused by missing or interrupted protective conductor.

COMMISSIONING

IMPORTANT!

• If the knife is not very blunt, in most cases it is sufficient to resharpen it just a little in stage 3.
• Make sure that the knife is in contact with the diamond discs. All you need to do is apply slight downward pressure while pulling the knife slowly towards you.
• Additional pressure is not necessary and does not accelerate the sharpening process.
• Never pull the knife through the slot from front to back, always from the crop to the tip.
• Prevent cuts into the plastic housing. Accidental cuts into the housing will not impair the operation of the unit or damage the cutting edge.
• In individual cases, slight scratches on the knife cannot be avoided.
• With a 20 cm long knife, each pulling through should take about 4 seconds. Pull shorter knives through in 2 – 3 seconds and longer ones in 6 seconds.
• Clean the knife to be sharpened before use.
• Position the unit in such a way that the numbers for sharpening stages 1, 2 and 3 are facing you.
• Insert the plug into the socket and switch the unit on.

SHARPENING 15° KNIVES

• For regular resharpening, it is sufficient to pull the knife through both slots of stage 1 once.
• If it is not yet sharp enough, pull it through both slots once more.
• If you are sharpening the knife for the first time or if it is very blunt, pull it 3 – 5 times alternately through the right and left slots of stage 1 to fully restore the angle of a thin knife. Thicker knives require more frequent pulling through.
• If it is still not sharp enough, pull it through for another 3 – 5 times.
• Before proceeding with stage 3, check if a burr has been created along the cutting edge. IMPORTANT!
• A burr is created more easily if you pull the knife through slowly.
• You can feel the burr by moving your fingers from the back of the knife over the side surface of the knife towards the cutting edge and then carefully stroking over the cutting surface. You can do this on both sides of the knife; a burr should have formed on one side.
• If your last sharpening passage took place in the right-hand slot, there should be a small burr on the right-hand side of the knife edge. If the last pull was in the left slot, you should be able to feel a burr on the left side.
• If there is no burr, repeat the process one more time, otherwise continue with polishing.

TRIZOR® CUTTING EDGE WITH 15° KNIVES
The unit sharpens knives with a 15-degree cutting edge, which is very sharp but slightly less durable than a 20-degree cutting edge. In stage 2, you can produce a small, intermediate sharpening along the 15-degree cutting edge, before the cutting  edge is polished and made even sharper at the third stage.

• First pull the knife through stage 1, as described above, until a complete burr has formed.
• Then pull the knife twice through the right and left slots of stage 2. Do not pull the knife through step 2 more often.
• Now continue with polishing in stage 3.
• First pull the knife through stage 1, as described above, until a complete burr has formed.
• Then pull the knife twice through the right and left slots of stage 2. Do not pull the knife through step 2 more often.
• Now continue with polishing in stage 3.

SHARPENING AND POLISHING KNIVES WITH A SINGLE-SIDED CUTTING EDGE

IMPORTANT!

• Knives with a single-sided cutting edge are only bevelled on one side, either right or left.
• To check whether a knife is right-handed or left-handed, hold it as if you were cutting with it.
• If the wide bevelled side of the knife is on the right, it is a knife for right-handers.
• If the wide bevelled side is on the left, it is a knife for left-handers. When grinding in stage 1:
• Right-handers start in the left slot.
• Left-handers start in the right slot.
• In the process, proceed as described under “Sharpening 15° knives” and “Polishing”.
• However, only use the right or left slot.

RESHARPENING KNIVES WITH A SINGLE-SIDED CUTTING EDGE

• In the process, proceed as described under “Resharpening the knife edge”.
• However, only use the right or left slot.

SHARPENING 20° KNIVES

• For regular resharpening, it is sufficient to pull the knife through both slots of stage 2 once.
• If it is not yet sharp enough, pull it through both slots once more.
• If you are sharpening the knife for the first time or if it is very blunt, pull it 3 – 5 times alternately through the right and left slots of stage 2 to fully restore the angle of a thin knife. Thicker knives require more frequent pulling through.
  If it is still not sharp enough, pull it through for another 3 – 5 times.
• Before proceeding with stage 3, check if a burr has been created along the cutting edge. IMPORTANT!
• A burr is created more easily if you pull the knife through slowly.
• You can feel the burr by moving your fingers from the back of the knife over the side surface of the knife towards the cutting edge and then carefully stroking over the cutting surface. You can do this on both sides of the knife; a burr should have formed on one side.
• If your last sharpening passage took place in the right-hand slot, there should be a small burr on the right-hand side of the knife edge. If the last pull was in the left slot, you should be able to feel a burr on the left side.
• If there is no burr, repeat the process one more time, otherwise continue with polishing.

CONVERTING 20° KNIVES INTO 15° KNIVES

IMPORTANT!
The advantage of the Asian knife is based on the thinner cross-section in the area of the cutting edges and the flatter inclination angle of each bevel.
If the 20° knife is thick and already has a considerable thickness at the top of the cutting edge, many of the advantageous properties of a 15° knife cannot be realized.
Therefore, select thin 20° knives for reworking the cutting edge.
If you want to convert a knife with a 20° knife into a sharper 15° knife, follow the instructions as described in the chapter “Sharpening 15° knives”. The first grinding process at stage 1 will probably require a few more pulls, but the subsequent polishing will be normal.

POLISHING

• Pull the knife alternately through the left and right slots of stage 3 at an even speed.
• To achieve a razor-sharp cutting edge, it is sufficient to pull the knife slowly through both slots of stage 3 once or twice.
• If a burr remains, you can further refine the knife by additionally pulling it through during the polishing phase.

IMPORTANT!
A suitable test to assess the sharpness of the knife is to cut a tomato or paper.

Test the sharpness of the knife. To get a sharper cutting edge, pull the knife through a few more times quickly on each side and then check the sharpness. Repeat this procedure as required to create an exceptionally sharp cutting edge.

CAUTION
Sharpening makes the knife very sharp. There is danger of injury.

RESHARPENING THE KNIFE EDGE

IMPORTANT!
The knife edge can be resharpened approximately 10 times before it needs to be pre-sharpened in stage 1 or 2.
To resharpen, pass the knife twice to three times alternately through the left and right slots of stage 3 while maintaining the recommended downward pressure. Ensure that the grinding discs are rotating during the process.
Test the sharpness of the knife. Repeat the process as required. As a rule, it is sufficient to resharpen the knife several times in stage 3 before using stage 1 or 2.

SHARPENING SERRATED KNIVES
Serrated knives can only be sharpened in stage 3.

• Pull the knife alternately through the right and left slots of stage 3. As a rule, it is sufficient to pull the knife through stage 3 approx. 5 – 10 times.
• Test the sharpness of the knife.
• If the knife is very blunt, first carry out a quick but complete pull in stage 2 – once in the right and once in the left slot.

IMPORTANT!

• Only carry out a few pulls in stage 2, otherwise you will remove too much material from the teeth of the serrated knife.
• Then pull the knife alternately through the right and left slots approx. 5 times in stage 3. IMPORTANT!
• Due to its saw-like structure, a serrated knife will never be as sharp as a knife with a smooth knife.

CLEANING

• The outside surface of the knife sharpener can be cleaned with a damp, soft cloth.
• This knife sharpener does not require any oils or other lubricants.

CLEANING OF THE POLISHING STAGE

The polishing discs in stage 3 can be cleaned manually if they are soiled with grease, food scraps or grinding particles. There is a lever on the back of the unit for this purpose.

This is how you clean the discs:

• Switch on the unit.
• Press the lever to the right or left and hold it for 3 seconds.
• Then press the lever in the other direction and hold it again for 3 seconds.
• One direction cleans one disc, the other cleans the second disc.
• Switch the unit off again after cleaning.

IMPORTANT!

• Only use the cleaning tool if the discs are no longer sharpening well or the knives need to be pulled through more often to stay sharp.
• Each cleaning removes some material from the discs. Too frequent use can wear out the discs so that they need to be replaced.
• If you clean your knives regularly, it is sufficient to clean the discs only once a year or less.

REMOVING METAL DUST
The metal dust that has accumulated in the unit during sharpening should be removed about once a year. Remove the small rectangular cover from the cleaning opening on the underside of the unit. There are metal abrasion particles that are held in place by a magnet on the inside of this cover. You can simply wipe off this accumulation of metal particles with paper from  the kitchen roll or brush it off with a toothbrush; then replace the cover in the opening. If large quantities of metal dust have accumulated in the unit in addition to the particles adhering to the magnet, you can shake them out through the base opening with the cover removed. After cleaning, reinsert the cover with the magnet firmly and securely into the housing.

TWO-YEAR WARRANTY

For this product, we assume 24 months manufacturer warranty for defects, which are due to production or material defects. Your legal warranty claim in conformity with Section 437 et seq. of the German Civil Code (BGB) shall remain unaffected by this regulation. The warranty does not cover damage caused by improper handling or use as well as defects which only slightly influence the function or the value of the appliance. In this case, the warranty will also become null and void. Transport damages, as far as we are not responsible for it, are excluded from the warranty claims. A warranty claim is excluded for damage caused by a repair which has not been carried out by us or one of our agents. In case of justified complaints, we shall repair the defective product or replace it by a product without defects at our discretion.

Gebr. Graef GmbH & Co. KG |
Donnerfeld 6 | 59757 Arnsberg | www.graef.de

Documents / Resources

GRAEF CC80 Knife Sharpener [pdf] Instruction Manual CC80, CC80 Knife Sharpener, Knife Sharpener, Sharpener

References

• User Manual