Clarke METALWORKER CBS20 User manual

OPERATION & MAINTENANCE

INSTRUCTIONS

ORIGINAL INSTRUCTIONS DL0822

ELECTRIC DRILL BIT SHARPENER

MODEL NO: CBS20

PART NO: 6480231

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

INTRODUCTION

Thank you for purchasing this CLARKE Electric Drill Bit Sharpener.

Before attempting to use this product, please read this manual thoroughly and

follow the instructions carefully. In doing so you will ensure the safety of yourself

and that of others around you, and you can look forward to your purchase

giving you long and satisfactory service.

IMPORTANT

Please read all of the safety and operating instructions carefully before using

this product. Please pay particular attention to all sections of these instructions

that display warning symbols and notices.

GUARANTEE

This product is guaranteed against faulty manufacture for a period of 12

months from the date of purchase. Please keep your receipt which will be

required as proof of purchase.

This guarantee is invalid if the product is found to have been abused or

tampered with in any way, or not used for the purpose for which it was

intended.

Faulty goods should be returned to their place of purchase, no product can

be returned to us without prior permission.

This guarantee does not effect your statutory rights.

WARNING: THIS IS A WARNING SYMBOL. THIS SYMBOL IS USED

THROUGHOUT THE USER GUIDE WHENEVER THERE IS A RISK OF

PERSONAL INJURY. ENSURE THAT THESE WARNINGS ARE READ AND

UNDERSTOOD AT ALL TIMES.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

PRODUCT OVERVIEW

NO. DESCRIPTION

1 Grinding Stone Height Adjustment Knob

2HeadAssembly

3On/OffSwitch

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

SAFETY SYMBOLS

ENVIRONMENTAL RECYCLING POLICY

Through purchase of this product, the customer is taking on the

obligation to deal with the WEEE in accordance with the WEEE

regulations in relation to the treatment, recycling & recovery and

environmentally sound disposal of the WEEE.

In effect, this means that this product must not be disposed of with general

household waste. It must be disposed of according to the laws governing Waste

Electrical and Electronic Equipment (WEEE) at a recognised disposal facility.

GENERAL SAFETY RULES

1. KEEP WORK AREA CLEAN. Cluttered areas invite injuries. Keep work area

well lit.

2. NEVER use power tools in damp, wet, or poorly lit locations. DO NOT expose

to rain. DO NOT use electrically powered tools in the presence of

flammable gases or liquids.

3. KEEP CHILDREN AWAY. Children must never be allowed in the work area. DO

NOT let them handle machines, tools, or extension cable.

Read instruction

manual before use

Wear Eye Protection

Class 2 Double

Insulated

Indoor Use Only

WARNING: WHEN USING ELECTRIC TOOLS, MACHINES, OR EQUIPMENT,

BASIC SAFETY PRECAUTIONS SHOULD ALWAYS BE FOLLOWED TO REDUCE

THE RISK OF FIRE, ELECTRIC SHOCK AND PERSONAL INJURY.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

4. STORE IDLE EQUIPMENT. When not in use, tools should be locked up in a dry

location to inhibit rust. Always lock up tools and keep out of reach of

children.

5. DO NOT FORCE THE TOOL. It will do the job better and more safely at the

rate for which it was intended.

6. DRESS CORRECTLY. DO NOT wear loose clothing or jewellery which could be

caught in moving parts. Wear a hair net if you have long hair.

7. USE EYE, EAR AND HAND PROTECTION. Always wear approved impact

safety goggles.

8. DO NOT ABUSE THE POWER CABLE. DO NOT yank it to disconnect it from the

socket. DO NOT carry tools by the cable.

9. DISCONNECT POWER. Unplug when not in use, before servicing, and when

changing accessories.

10. AVOID UNINTENTIONAL STARTING. Be sure the switch is in the OFF position

when not in use and before plugging in.

11. STAY ALERT. Watch what you are doing, use common sense. DO NOT

operate any tool when you are tired.

12. DO NOT OPERATE TOOL IF UNDER THE INFLUENCE OF ALCOHOL OR DRUGS. If

there is any doubt, DO NOT operate the tool.

13. CHECK DAMAGED PARTS. Before using any tool, any part that appears

damaged should be carefully checked to determine that it will operate

properly and perform its intended function. DO NOT use the tool if the

switch does not turn the tool on and off correctly.

14. GUARD AGAINST ELECTRIC SHOCK. Prevent body contact with grounded

surfaces such as pipes, radiators.

15. REPLACEMENT PARTS AND ACCESSORIES. When servicing, use only identical

replacement parts. Use of any other parts will void the warranty. Only use

accessories intended for use with this tool.

16. KEEP AWAY FROM LIQUIDS. This tool is designed for dry sharpening

operations only. DO NOT use any sharpening oils.

17. HEAT PRODUCED WHEN SHARPENING. The sharpening head and any bits

being sharpened will become hot. Be careful when handling; allow drill tips

to cool before storing.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

TOOL SPECIFIC SAFETY RULES

1. Make sure that flammable materials or materials that may explode are

kept out of the immediate vicinity.

2. DO NOT overload the tool. Only use the device for its intended purpose.

3. Make sure you are positioned firmly and with a natural stance when

working with the tool.

4. Make sure the grinding stone and head assembly are correctly seated and

installed before switching on the tool.

5. Prevent overheating of the tool and the drill bit.

6. Guide the mains cable in such a way that it cannot be caught by the tool.

7. NEVER remove too much material in a single process. It is better to remove

small amounts in multiple processes.

8. The tool should only be operated by a single operator at any one time.

9. ALWAYS wait until the grinding stone has come to a standstill before

removing contamination, etc. from the working area/tool.

10. NEVER leave the tool to run unattended.

11. Only use grinding stones that are in perfect condition.

12. Remember that moving parts may be located behind ventilation and

venting slots.

13. Ensure that the ventilation slots are always free of obstructions.

14. Check the grinding stone before each use. DO NOT use the device if the

grinding stone is broken, has a crack or is damaged in any other way.

Handle and store the grinding stone with care.

15. Make sure that the grinding stone is correctly fitted and secured. Allow the

device to operate in idle for 30 seconds in a safe location. Immediately

stop the device if there are faults.

16. Symbols affixed to your device SHOULD NOT be removed or covered.

Information on the device that is no longer legible should be replaced

immediately.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

ELECTRICAL CONNECTIONS

Before switching the product on, make sure that the voltage of your electricity

supply is the same as that indicated on the rating plate. This product is

designed to operate on 230VAC 50Hz. Connecting it to any other power

source may cause damage.

This product may be fitted with a non-rewireable plug. If it is necessary to

change the fuse in the plug, the fuse cover must be refitted. If the fuse cover

becomes lost or damaged, the plug must not be used until a suitable

replacement is obtained.

If the plug has to be changed because it is not suitable for your socket, or due

to damage, it should be cut off and a replacement fitted, following the wiring

instructions shown below. The old plug must be disposed of safely, as insertion

into a mains socket could cause an electrical hazard.

If the colours of the wires in the power cable of this product do not correspond

with the markings on the terminals of your plug, proceed as follows.

•TheBlue wire must be connected to the terminal marked Nor

coloured Black.

•TheBrown wire must be connected to the terminal marked Lor

coloured Red.

We strongly recommend that this machine is connected to the mains supply

via a Residual Current Device (RCD)

If in any doubt, consult a qualified electrician. DO NOT attempt any repairs

yourself.

This symbol indicates that this is a Class II product, and does not require

an earth connection.

WARNING! Read these electrical safety instructions thoroughly

before connecting the product to the mains supply.

Plug must be BS1363/A approved.

Always fit a 3 Amp fuse.

Ensure that the outer sheath of the cable is firmly held by the clamp

Neutral

(Blue)

Live

(Brown)

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

OPERATIONS

BEFORE EACH USE

CORRECTLY SHARPENED BITS

Your bit is correctly sharpened when it has the following characteristics.

• A sharp point in the center of the bit.

• Two sharp and equal cutting edges

• Two trailing edges that are slightly lower than the cutting edges.

ADJUSTING THE GRINDING STONE

1. Turn the grinding stone height

adjustment knob clockwise to

raise the stone.

• This will give you a more

aggressive cutting action. This is

also useful when you are

working with short bits.

2. Lower the stone by turning the

adjusting knob anti-clockwise.

• This will produce a finer ground

edge, though it will take longer and require more repetitions.

SHARPENING PROCEDURE

NOTE: This sharpener uses a dry grinding stone. DO NOT use any

sharpening oils or lubricants with this tool.

What How

Check the power cable and plug for

damage

Conduct a visual inspection and

have the cable replaced by an

electrician if necessary.

Check the grinding stone Visual check, Change the grinding

stone if necessary (see page 10).

Cleaning the device Wipe the unit with a damp cloth.

Remove grinding residue with a dry

brush.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

WARNING: THIS SHARPENER SHOULD ONLY BE USED TO SHARPEN HSS DRILL BITS.

CARBIDE, COBALT AND TITANIUM DRILL BITS SHOULD NOT BE SHARPENED USING

THIS TOOL.

1. Place sharpener on a flat, sturdy surface and plug in.

2. Put a single drill bit (HSS only) into the appropriate hole (3mm - 12mm).

3. Using the height adjustment knob, raise (clockwise) or lower (anti-

clockwise) the grinding stone until it touches the drill bit (see ‘Adjusting the

Grinding Stone’ on page 8).

NOTE: Do not raise the grinding stone too far as this may damage the

housing.

4. Turn the unit on.

• Exert a slight downward pressure

onto the bit and rotate the bit

back and forth about 20 degrees

while sharpening. Each hole is

fluted to help with the rotation.

• The bit must be kept in motion

whilst in the machine to avoid

uneven sharpening.

5. Turn unit off after approximately 5-10

seconds of sharpening.

• Examine the drill bit according to

the “Sharpening Hints” section below.

6. Ensure both sides of the drill bit are sharpened using the same amount of

time and pressure.

7. Repeat the above steps as necessary.

8. DO NOT run the machine for longer than 3 minutes at a time.

NOTE: Pre-treat heavily damaged bits by coarsely grinding on a

sharpening stone first.

SHARPENING HINTS

• If the tip of bit starts to turn blue, it is overheating. Reduce the

amount of pressure and sharpening time. Cool the bit in water

between sharpening cycles.

• If one edge is longer than the other, sharpen the drill bit a little more.

• If you are sharpening a broken (rather than blunt) bit and the time

required to restore the shape is too long, rough the bit into shape first

using a bench grinder.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

MAINTENANCE & TROUBLESHOOTING

CHANGING THE GRINDING STONE

1. Make sure that the sharpener is switched off and disconnected from the

mains power supply.

2. Remove the four screws that hold

the head assembly in place and

remove the head assembly.

3. Remove the grinding stone

assembly.

• Make sure the spring

underneath stays in place

around the flat sided spindle.

4. Unscrew the nut from the wheel

base by turning anti-clockwise.

5. Pop out the wheel base and

washer and remove the worn

grinding stone.

6. Place new grinding stone onto

the wheel base, replace the

washer, and screw the nut back in

place.

7. Replace wheel assembly onto the unit.

This manual suits for next models

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