Clarke CAT121 Instruction Manual

OPERATION & MAINTENANCE
INSTRUCTIONS
LS0211
DUAL ACTION SANDER
MODEL NO: CAT121
PART NO: 3110877

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
INTRODUCTION
Thank you for purchasing this CLARKE product.
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.
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.
ENVIRONMENTAL PROTECTION
Recycle unwanted materials instead of disposing of them as
waste. All tools, accessories and packaging should be sorted,
taken to a recycling centre and disposed of in a manner which is
compatible with the environment.
CONTENTS
1 x Dual Action Orbital Air Sander;
1 x 150mm Backing Pad;
1 x Air Connector
1 x Oil Bottle
1 x Instruction manual

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TABLE OF CONTENTS
INTRODUCTION ......................................................................... 2
GUARANTEE ............................................................................... 2
ENVIRONMENTAL PROTECTION ................................................ 2
CONTENTS ................................................................................. 2
TABLE OF CONTENTS ................................................................. 3
GENERAL SAFETY RULES ............................................................ 4
AIR SUPPLY ................................................................................. 6
Recommended Air Supply Connection ...................................................... 6
THE DUAL ACTION SANDER ...................................................... 7
Before Use ........................................................................................................ 8
Fitting The backing pad ................................................................................. 8
Fitting The Sanding Sheet ............................................................................... 8
Adjusting The Speed ....................................................................................... 9
Using The Sander ............................................................................................. 9
AFTER USE .................................................................................. 10
Disconnecting The Air Supply ........................................................................ 10
Storage ............................................................................................................. 10
MAINTENANCE .......................................................................... 11
SPECIFICATIONS ....................................................................... 12
VIBRATION EMISSIONS ............................................................. 13
DECLARATION OF CONFORMITY ............................................. 15

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GENERAL SAFETY RULES
WORK ENVIRONMENT
1. Keep the work area clean and tidy.
2. Dress appropriately - Do not wear loose clothing or jewellery. Tie long hair
out of the way.
3. Keep children and visitors away - Do not let children handle the tool.
4. Do not operate the tool where there are flammable liquids or gases.
5. Keep the air supply hose away from heat, oil and sharp edges.
6. Do not fit the tool to any stand or clamping device that may damage the
tool.
USE
1. Stay alert and use common sense - Do not operate the tool when you are
tired or under the influence of alcohol, drugs or medication.
2. Always wear eye protectors when using the tool - Eye protectors must
provide protection from flying particles from the front and the side.
3. Always wear ear protectors when using the tool.
4. Do not overreach - Keep proper footing and balance at all times.
5. Never use any type of bottled gas as a source of power for the tool.
6. Do not connect the air supply hose with your finger on the trigger of the
tool.
7. Do not exceed the maximum pressure for the tool: 90 psi / 6.2 bar.
8. Check hoses for leaks or worn condition before use, and ensure that all
connections are secure.
9. Do not use the tool for any other purpose than that described in this book.
10. Do not carry out any alterations or modifications to the tool.
11. Always disconnect from the air supply when:
• Performing any maintenance
• The tool is not in use.
CAUTION: FAILURE TO FOLLOW THESE PRECAUTIONS COULD RESULT IN
PERSONAL INJURY, AND/OR DAMAGE TO PROPERTY.

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• The tool will be left unattended.
• Moving to another work area.
• Passing the tool to another person.
12. Never use the tool if it is defective or operating abnormally.
13. The tool should be serviced at regular intervals by qualified service
personnel.
14. Avoid damaging the tool for example by applying excessive force of any
kind.
15. ALWAYS maintain the tool with care. Keep it clean for best and safest
performance.
16. Quick change couplings should not be located at the tool. They add
weight and could fail due to vibration.
17. DO NOT force or misuse the tool. It will do a better and safer job at the rate
for which it was designed.
18. Do not remove any labels. Damaged labels should be replaced.
19. This tool vibrates with use. Vibration may be harmful to your hands or arms.
Stop using the tool if discomfort, a tingling feeling or pain occurs. Seek
medical advice before resuming use.
TRANSPORTATION
1. Never carry the tool by the air supply hose.
2. Never carry the tool with your finger on the trigger.
STORAGE
1. When not in use the tool must be disconnected from the air supply and
stored in a dry place out of the reach of children (preferably in a locked
cabinet).
2. Avoid storing the tool in environments where the temperature is below 0oC.

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AIR SUPPLY
• Use only clean, dry, regulated compressed air as a power source for
the tool.
• Air compressors used with the tool must comply with the appropriate
European Community safety directives.
• A build up of moisture or oil in the air compressor will accelerate
wear and corrosion in the tool.
• Never exceed the maximum operating pressure for the tool.
AIR HOSE
• The air hose must be rated at least 150% of the maximum operating
pressure of the tool.
RECOMMENDED AIR SUPPLY CONNECTION
WARNING: COMPRESSED AIR CAN BE DANGEROUS. ENSURE THAT YOU
ARE FAMILIAR WITH ALL PRECAUTIONS RELATING TO THE USE OF
COMPRESSORS AND COMPRESSED AIR SUPPLY.

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
THE DUAL ACTION SANDER
NO DESCRIPTION PART NUBER NO DESCRIPTION PART NUBER
1 Trigger RONCAT12101 4 Locking Nut RONCAT12104
2 Speed Control RONCAT12102 5 Backing Pad RONCAT12105
3 Balancer RONCAT12103 6 1/4” BSP (Female
Air Inlet)
RONCAT12106
1
2
34
5
6

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BEFORE USE
NOTE: Ensure the compressor is turned off.
1. Remove the travel plug from the air inlet at the bottom of the tool.
2. Pour 2-3 drops of CLARKE airline oil into the air inlet. This should be done
regardless of whether or not a lubricated air supply is to be used.
3. Connect a suitable hose to the
tool as shown.
• Use the adapter supplied if
required.
4. Connect the other end of the hose
to the compressor.
You can fit a whip hose with a quick fit
coupling if required (available from
your Clarke dealer.)
FITTING THE BACKING PAD
1. Turn spindle lock until the knurled
portion contacts the flat surface
on the Spindle.
2. Thread the backing pad into the
spindle, by grasping the balancer,
with one hand and the pad with
the other. Do not over tighten.
3. Now turn the spindle lock so that
the knurled portion is away from
the flat on the spindle, and the
spindle turns freely.
4. DO NOT operate tool with spindle in locked mode as performance would
be severely affected, and a hazardous situation may result.
FITTING THE SANDING SHEET
1. Peel off the back of the self adhesive sanding sheet and stick it to the
backing pad.
WARNING: COMPRESSED AIR CAN BE DANGEROUS. ENSURE THAT YOU
ARE FAMILIAR WITH ALL PRECAUTIONS RELATING TO THE USE OF
COMPRESSORS AND COMPRESSED AIR SUPPLY.

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
OPERATION
ADJUSTING THE SPEED
Adjust the operating speed if
required, by twisting the speed
control.
• Clockwise to increase the
sanding speed.
• Anticlockwise to decrease the
sanding speed.
USING THE SANDER
1. Place the sander on the workpiece and press down on the trigger to start
the sander.
2. Release pressure from the trigger to stop the sander.
3. Always ensure the sander has stopped before putting it down on any
surface after use.
NOTE: Replacement sanding sheets are available from your Clarke
dealer.

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AFTER USE
DISCONNECTING THE AIR SUPPLY
Do not disconnect the air supply hose until the compressor has been shut
down and the compressed air released.
1. Refer to the compressor instruction book for the procedures to shut down
and release the compressed air.
2. Once the pressure has been released, disconnect the air supply hose from
the tool.
3. Store the tool safely in its box in a dry, secure environment.
STORAGE
• If the tool is to be stored, or is idle for longer than 24 hours, run a few
drops of Clarke air line oil into the air inlet, and run the tool for 5
seconds in order to lubricate the internal parts.
• When not in use, disconnect from air supply, clean tool and store in
a safe, dry place.