Gastroback 41620 Bedienungsanleitung

Operating Instructions

Design Knife Sharpener

Art.-No. 41620 Design Knife Sharpener

Read all provided instructions before first usage!

Model and attachments are subject to change!

For household use only

GASTROBACK

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Table of Contents

Knowing Your New Knife Sharpener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Important Safeguards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Important Safeguards for Electrical Appliances . . . . . . . . . . . . . . . . . . . . . . . .21

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Before First Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Important Hints for Best Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

General Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Selecting the Required Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Serrated Knives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Checking for a Burr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Preparing the Knife Sharpener for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Sharpening Blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Notes for Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

Read all provided instructions before first use!

Model and attachments are subject to change!

Carefully read all provided instructions before you start running the appli

ance, and pay regard to the warnings mentioned in these instructions.

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Dear Customer!

Congratulations! You have purchased a helpful assistant. No more dull knives! Effortless and

in a few seconds your knives will be sharpened by diamond abrasive discs. The innovative

unique three stage sharpening system allows sharpening both straight-edged and serrated

knives-grinding a precision edge. The springy sliding cam guides the blade in the slots suppor-

ting a good positioning. Additionally, due to its functional design the unit is suitable for left and

right-handed use.

These instructions for use will inform you about the various functions and features which makes

it easy to take pleasure in your new Knife Sharpener.

We hope that you will benefit from your new Knife Sharpener.

Your Gastroback GmbH

Power switch with

power indicator

Base with non-slip rubber feet

Straight blade serrated blade

3 pairs of slots for

sharpening in 3 stages

Magnet-catches the metal dust

Sturdy brushed die-cast alu-

minium housing

Magnet cover

Abrasive disc cover

Knowing Your New Knife Sharpener

100% diamond abrasive discs in stages A (coarse)

and B (medium)

Ultra-fine strop disc in stage C

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Important Safeguards

Carefully read all instructions before operating this appliance and save for furt-

her reference. Do not attempt to use this appliance for any other than the intended use, des-

cribed in these instructions. Any other use, especially misuse, can cause severe injuries or dama-

ge by electric shock, heat or fire.

Any operation, repair and technical maintenance of the appliance or any part of it other than

described in these instructions may only be performed at an authorised service centre. Please

contact your vendor.

•This appliance is for household use only. Do not operate or store the appliance in humid or

wet areas or outdoors. Any use of accessories, attachments or spare parts not recommended by

the manufacturer may result in fire, electric shock and injuries to persons.

•Check the entire appliance regularly for proper operation especially the power cord. Do not

operate the appliance, when the appliance or any part of it is likely to be damaged, to avoid

risk of fire, electric shock or any other damage and/or injuries to persons. The appliance is like-

ly to be damaged if the appliance was subject to inadmissible strain (e.g. overheating, mechani-

cal or electric shock), or if there are any cracks, excessively frayed or melted parts, or distor-

tions, or if the appliance is not working properly. In this case, immediately unplug the appliance

and return the entire appliance (including all parts and accessories) to an authorised service cen-

tre for examination and repair.

•Operate the appliance on a well accessible, stable, level, dry, and suitable large table or

counter. Do not place the appliance over a power cord, or near the edge of the table or coun-

ter, or on wet or inclined surfaces or where it can fall. Do not place any clothes or tissue or

other objects below or on the appliance during operation, to avoid risk of fire, electric shock,

moving parts and overheating.

•Close supervision is necessary when the appliance is used near young chil-

dren. Do not let young children play with any parts of the appliance or the

packaging! The appliance is not intended for use by children or infirm persons without super-

vision. Do not leave the appliance unattended, when it is in reach of young children. Always

keep the entire appliance dry and clean and where young children cannot reach it. Do not

place any hard and/or heavy objects on the appliance or any part of it.

•Always switch OFF and unplug the appliance when the appliance is not in use and before

moving, cleaning, or for storage. Do not handle the appliance or any part of it with violence.

Do not insert any foreign objects (e.g. clothes) in the slots, when the appliance

is connected to the power supply!

•The appliance or power cord may never touch hot surfaces. Do not place the

appliance or any part of it on or near hot surfaces (e.g. burner, heater, or oven).

•Do not attempt to sharpen scissors, axe blades or any blade that does not fit freely in the

slots. Handle the processed blades with special care, as they are extremely and unexpectedly

sharp. Do not run your finger along the edge to check the sharpness. Do not cut

toward any part of your fingers, hand or body. Never point knifes against persons or lay knives

down in a way that persons could accidentally get injured. Store knives in a safe manner (e.g.

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in a knives block). Do not leave knives unattended, when they are in reach of

young children.

•Do not use abrasive cleaners, cleaning pads (e.g. metal scouring pads) for cleaning.

Always clean and dry the knives thoroughly before sharpening to prevent that water and any

pollution will get into the appliance.

•Do not use honing oils, water, or any lubricants with the appliance. DO NOT place the

appliance or any part of it in an automatic dishwasher.

•Some blades are hardened by means of a special technique (e.g. Laser) and will lose there

particular properties when grinded. Thus this type of knives should not be sharpened in general.

Important Safeguards for Electrical Appliances

Place the appliance near a suitable wall power socket to connect the appliance directly to a pro-

tected mains power supply with protective conductor (earth/ground) connected properly. Ensure

that the voltage rating of your mains power supply corresponds to the voltage requirements of

the appliance (220/240 V, 50/60 Hz, AC).

The installation of a residual current operated circuit breaker (r.c.c.b.) with a maximum rated

residual operating current of 30 mA in the supplying electrical circuit is strongly recommended.

If in doubt, contact your electrician for further information.

In various foreign countries, the specifications for power supplies are subject to incompatible

norms. Therefore it is possible that power supplies in foreign countries do not meat the require-

ments for safe operation of the appliance. Thus, before operating the appliance abroad, ensure

that safe operation is possible.

•If you wish to use an extension cord, it must be connected properly with live, neutral and pro-

tective ground conductor.

•Always handle the power cord with care. Always completely unwind the power cord before

use. Do not place the appliance on a power cord. Power cords may never be knotted, twisted,

pulled, strained or squeezed. Do not let the plug or power cord hang over the edge of the table

or counter. The power cord may not touch hot surfaces. Ensure that no one will pull the applian-

ce by the power cord. Take care not to entangle in the power cord. Always grasp the plug to

disconnect the power cord from the power outlet.

•Do not place or immerse the appliance or power cord in water or any other liquid. Do not

spill or drip any liquids on the power cord or appliance. When liquids are spilled on the appli-

ance or power cord, immediately switch OFF and unplug the appliance. Thereafter, clean the

appliance thoroughly and let it dry naturally. (See: Care and Cleaning)

•Do not process wet or dirty knives.

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Technical Specifications

Model: Design Knife Sharpener

Power supply: 220/240 V AC, 50/60 Hz

Power consumption: 130 Watt

Length of power cord: ca. 100 cm

Weight: ca. 2.2 kg

Dimensions: ca. 26 cm x 13 cm x 11 cm (width x depth x height)

Before First Use

WARNING: DO NOT let young children play with the appliance, or any part of

it, or the packaging!

1. Unpack the appliance and all accessories carefully and check that no parts are damaged or

missing.

2. Carefully remove all shipping materials and tags, but DO NOT remove the model label on the

bottom of the appliance. Ensure that there are no foreign objects in the slots.

Important Hints for Best Results

The Design Knife Sharpener is designed to sharpen kitchen knives, pocket knives, and most

sports knives. You can sharpen straight blades and serrated blades, and get a real sharp edge.

However, the results are depending on the quality characteristics of the knife.

In some cases, there will be no need to use all stages for getting sufficient results. However,

always use the stages in the sequence from A to C. (See: Selecting the Required Stages)

CAUTION: Some knives have been hardened by means of special methods and in general may

not be sharpened. Please follow the instructions at the case or collateral material of the knife.

General Hints

•Straight blades can be sharpened in all three stages. However, beginning with Stage A may

be necessary only if the knife is very dull or if you wish to create an edge with extra "bite".

•It is a good advice to give the sharpening process a try using older knives. This is how you

will get a feeling for working with the Design Knife Sharpener, before sharpening valuable kni-

ves.

•Work on serrated blades only in stage C and do NOT sharpen in stages A and/or

B as that will unnecessarily remove too much metal from the serrations.

•Use only light downward pressure when sharpening just enough to establish secure contact

with the abrasive disc. You will not improve on the sharpening process by applying more

pressure to the knives neither in time nor in quality.

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•Always pull the blades at the recommended steady speed (ca. 5 cm per second) over the

whole length of the blade. Never interrupt or stop the motion of the blade when it

is in contact with the abrasive discs.

•Alternate pulls in right and left slots (of any stage used). Exceptions are some specialized

blades that are sharpened only at one side of the blade. Select the correct slot for these knives:

always the upwards facing side of the blade will be grinded.

•During sharpening the blade should be moved maintaining a horizontal orientation relative

to the top of the counter or table. To sharpen the blade near the tip of a curved blade, lift the

handle up slightly as you approach the tip so that the part of the edge is maintained horizontal

to the table that is currently in contact with the abrasive disc.

•Used correctly you will find that you can sharpen the entire blade up to ca. 1.5 cm (1/2 in)

to the handle. If your chef's knives have a heavy knob or pommel near the handle extending to

the edge, a commercial grinder can modify or remove the lower portion of the knob so that it

will not interfere with the sharpening action allowing you to sharpen the entire blade length.

•Regardless of the used stage, you will find that many types of knives with differently wide

blades will be sharpened in a steady quality, because of the springy sliding cam that supports

a good positioning between the abrasive discs and sliding cam. This is one of the major

advantages of this Design Knife Sharpener.

•To improve your results, you should learn how to detect a burr along the edge (as described

below). Although you can sharpen well without using this technique, it is the best and fastest

way to determine whether you have sharpened sufficiently in stage A and B. This will help you

avoid over-sharpening and insure incredibly sharp edges every time.

•Cutting a tomato or a piece of paper is a convenient method of checking for blade sharp-

ness. NEVER move your finger along the edge!

Selecting the Required Stages

Do not over-grind your knives, to avoid a too high loss of material. Thus a purposeful selection

of the used stages is critical. For this, observe the following hints.

Note: Some special knives are only sharpened at one side of the blade. For these blades use

only the appropriate slot, with the grinded side of the blade facing upwards.

Stage A - Pre grounding procedure

Note: Do not use stage A for serrated knives, as this will remo-

ve too much metal from the serration.

If your knife is already reasonably sharp, skip Stage

A and go directly to Stage B.

If you are sharpening a knife for the first time or if the knife is

very dull, start in stage A. (See: Sharpening Blades)

In most cases you will find that only one pull in each slot of stage

A is adequate. Then proceed to stage B.

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Stage B - Thoroughly Sharpening the Edge

Note: Do no use stage B for serrated knives, as this will

remove too much metal from the serration.

Sharpen the blade in stage B by using the same procedure as

described in the section Sharpening Blades.

When detecting a burr along one side of the edge, process the

knife in stage C once to remove the burr. (See below: Checking

for a Burr)

Stage C - Fine-Sharpening

Stage C is designed for three tasks:

•Fine-sharpening for extremely sharp knives

More pulls in stage C will refine the edge further, creating an edge particularly desirable for

gourmet preparations. Fewer pulls in stage C may be preferable if you will be cutting fibrous

foods. To obtain a razor sharp edge, only one or two pairs of pulls in stage C will be necessary.

•Removing a burr after thorough sharpening in stage B (See below: Checking for a Burr)

In general, one single pull in the respective slot of stage C is sufficient to remove a burr. For this,

select the slot where the burr of the blade is pointing upwards.

•Sharpening serrated knives. (See: Serrated Knives)

Serrated Knives

Serrated blades of all types can be sharpened in the Design

Knife Sharpener, but use ONLY stage C.

This will sharpen the teeth of the serrations and develop micro-

blades along the edges of these teeth. Normally, five to ten pairs

of alternating pulls in stage C will be adequate.

If the knife edge has been severely damaged through use make

one fast pull (2 -3 seconds for a 20 cm blade) in each of the

slots of stage B, then make a series of pulls in stage C, alterna-

ting right and left slots. Excessive use of stage B will remove more metal along the edge then is

necessary in order to sharpen the teeth.

Because serrated blades are saw-like structures, the edges will never appear to be as "sharp" as

the edge on a straight-edge knife. However, their tooth-like structure will help break the skin on

hard crusty foods and penetrate other materials such as cardboard.

Checking for a Burr

WARNING: NEVER move your finger along the edge to avoid cutting your finger!

When sharpening in stages A and/or B, a burr could develop. Amongst other reasons, this is

depending on the material of the knife.

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To check for the burr, move your finger carefully and

without exerting pressure from the back of the

blade across the blade to the edge as shown in the

illustration. The burr will be a rough protrusion on one side

of the edge, whereas the other side is feeling smooth.

When detecting a burr, work on the knife in stage C once

to remove the burr, and for this selecting the slot, where the

side with the burr is facing upwards.

Operation

WARNING: Do not attempt to sharpen scissors, axes, hatches, saws or any blade that does

not fit freely in the slots. Do not insert any foreign objects in the slots of the appliance. Always

switch OFF and unplug the appliance, when it is not in use or you wish to move, clean or

assemble/disassemble the appliance.

Knifes properly sharpened on your Design Knife Sharpener could be sharper than you expect.

To avoid injuries handle the knives with extreme care. Do not cut toward any part of your fin-

gers or persons. Do not run your finger along the edge. Check the sharpness by cut-

ting a piece of paper or thin cardboard. Store in a safe manner (e.g. in a knives block). Store

knives and appliance where they are out of reach of young children.

Do not use the appliance if any part of it is damaged in any way (e.g. cracked). Do not

process wet or dirty knives with the Design Knife Sharpener. Always clean the kni-

ves after sharpening, to remove metal dust. Do not use any aiding components (e.g. honing

or drilling liquids, or any lubricants) with the Design Knife Sharpener. No lubrication is required

for any moving parts, motor, bearings, or sharpening surfaces.

Preparing the Design Knife Sharpener for Use

1. Place the appliance on a sufficiently large, level, and stable surface.

2. Ensure that the power switch is in OFF position (the part holding the

power indicator protruding) and that there are no foreign objects in the slots.

3. Connect the power plug to a suitable mains power outlet.

(See: Important Safeguards for Electrical Appliances)

Sharpening Blades

Note: There is no need to use all stages for every sharpening process. Select the required sta-

ges according to the condition and type of knife, and the result after each run. (See: Important

Hints for Best Results)

1. Before sharpening: Always clean and thoroughly dry the knife. Do not process wet kni-

ves with the Design Knife Sharpener.

Checking the knife for a burr.

power indicator

41620_Messer_BDA_k1.qxd 23.07.2010 13:36 Uhr Seite 23

2. Switch on the power switch. The red power indicator will be illuminated, and the motor starts.

Note: Do not twist the knife while sharpening. (See: Figure) Each time you insert the blade

simultaneously pull the blade toward you as soon as you feel it coming in contact with the abra-

sive disc. Apply just enough downward pressure to maintain the contact-more pressure will not

modify or speed the sharpening process.

CAUTION: Always ensure that you keep the knife moving along the used slot when it is tangi-

bly in contact with the motor-driven abrasive disc. Otherwise the blade will get jagged. Some

specialized blades are sharpened only at one side of the blade. Select the correct slot for these

knives: in all stages the upwards facing side of the blade will be grinded. Always sharpen the

entire blade length.

3. Slip the knife blade into one slot of the requested stage, ensuring to hold the blade always

horizontal and in parallel with the slot.

To insure even sharpening along the entire blade, insert the blade as close as possible to its

handle.

4. Move the blade gently down until you feel it having

contact with the abrasive disc. At this moment pull the knife

at a steady rate towards you until it exits the slot. Do not

use violence!

For a 20 cm blade (ca. 8 in) each pull should take about

4 seconds. Accordingly, pull shorter blades through in a

shorter time. However, most important for getting a good

result is to pull in a steady way with constant speed.

If the blade is curved, lift the handle slightly as you reach

the curved part of the blade, keeping the part of the blade

edge horizontal (in relation to the table) that is currently in

the middle of the slot

5. As you reach the tip, lift the knife slightly out of the slot.

6. Repeat with the other slot of the selected stage.

In each stage, make an equal number of pulls alternating in

the left and right slots in order to keep the edge facets sym-

metrical.

7. If the edge produced in the currently used stage is

sufficient, on occasion repeat the process in the next stage.

(See: Selecting the Required Stages)

8. If the knife is sufficiently sharp, switch the power switch to the Off position. The red power

indicator light goes out. Unplug the appliance from the power supply.

Wrong/right operation of

moving the knife in the slots

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