Clarke CBS43 Instruction Manual

OPERATION & MAINTENANCE
INSTRUCTIONS
LS1210
DRILL BIT SHARPENER
MODEL NO: CBS43
PART NO: 6480232

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
INTRODUCTION
Thank you for purchasing this CLARKE 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.
Please note that this drill bit sharpener is not suitable for sharpening masonry bits
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.

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
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. Don't 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 cables.
4. STORE IDLE EQUIPMENT. When not in use, tools must 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 PROPERLY. Do not wear loose clothing or jewellery which could be caught in
moving parts.
7. USE EYE AND HAND PROTECTION. Always wear approved impact safety goggles.
8. STAY ALERT. Watch what you are doing, use common sense. Do not operate any tool
when you are tired.
9. 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.
10. 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.
11. DO NOT OPERATE TOOL IF UNDER THE INFLUENCE OF ALCOHOL OR DRUGS. If there is
any doubt, do not operate the tool.
12. KEEP AWAY FROM LIQUIDS. Tool is designed for dry sharpening operations only.
13. HEAT PRODUCED WHEN SHARPENING. The sharpening head and any bits being
sharpened will become hot. Be careful when handling; allow the drill bit tips to cool
before storing.

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
OPERATIONS
CONNECTING TO A DRILL
1. Make sure the jaws on the drill
chuck are fully closed.
• The drill used must have a 43
mm collar and a 13mm (½
inch) chuck.
2. Push the drill bit sharpener onto
the drill as shown.
3. If required loosen the wing nuts to
slide the outer tube over the
chuck.
4. When in place, the outer tube
should grip the collar of the drill
and not the chuck and onto the
collar of the drill.
• The drill is connected to the drill
bit sharpener by friction only
PROPERLY SHARPENED BITS
Your bit is properly 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.

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
SHARPENING PROCEDURE
1. Connet the drill to the drill bit
sharpener and clamp the drill into
a vice to hold the sharpener
upright.
2. Connect the drill to the mains
supply.
3. Put a single drill bit (HSS only) into
the appropriate hole.
• Please note that this drill bit
sharpener is not suitable for
sharpening masonry bits
4. Pull the trigger on your drill.
• Exert a slight downward
pressure onto the bit and rotate
the bit back and forth about 20
degrees while sharpening.
• The bit must be kept in motion whilst in the drill bit sharpener.
5. Remove the drill bit after approximatley 5-10 seconds of sharpening.
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 shorter side 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.
• Ensure both sides of the drill bit are sharpened using the same
amount of time and pressure.
6. Repeat the above steps as necessary.

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
MAINTENANCE
CHANGING THE GRINDING WHEEL
• Replacement grinding stones are available from the Clarke Spares
department. Part number: CBS4301
1. Remove the drill bit sharpener from the drill.
2. Remove the two screws that hold
the head assembly in place and
remove the head assembly.
3. Remove the wheel assembly.
• Make sure the spring
underneath stays in place.
4. Unscrew the adjustment cylinder
from the wheel base by turning
clockwise.
5. Prise out the washer.
6. Pop out the wheel base and
remove the worn grinding wheel.
7. Press new grinding wheel onto the
wheel base, replace the washer,
and screw the adjustment
cylinder back in.
8. Replace wheel assembly onto the
drill bit sharpener.
• Make sure that the inner flats of
the adjustment cylinder line up
with the outer flats of the drive
spindle.
9. Replace the head assembly and
screws.

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
CLEANING
Keep the surface of your drill bit sharpener free of grit, dirt, and grease. Use
soapy water or non-toxic solvents. Do not use petroleum based solvents.
TROUBLESHOOTING
If the drill motor runs but the grinding wheel does not rotate, make sure the
adjustment cylinder's inner flats line up with the outer flats of the spindle as
described in “Changing The grinding Wheel” on page 6.
SPECIFICATION
Model Number CBS43
Drill Bit Sizes And Type 3.5 mm to 10 mm HSS
Dimensions (W x H x D) 71 x 146 x 74 mm
Weight 264 g