Clarke CAT 122, 3110878 User guide

AIR ANGLE GRINDER

MODEL NO: CAT122

PART NO: 3110878

OPERATION & MAINTENANCE

INSTRUCTIONS

LS0810

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.

ACCESSORIES

A wide range of accessories are available, including Filter/Regulators,
Lubricators, High Pressure Hoses (5 to 100 Metres), etc.

Contact your CLARKE dealer for further information, or CLARKE International
Sales Department on 01992 565 333.

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GENERAL SAFETY RULES

CAUTION: FAILURE TO FOLLOW THESE PRECAUTIONS COULD RESULT IN
PERSONAL INJURY, AND/OR DAMAGE TO PROPERTY.

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 air angle
grinder.

4. Do not operate the air angle grinder 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 air angle grinder to any stand or clamping device that may
damage the tool.

USE

1. Stay alert and use common sense - Do not operate the air angle grinder
when you are tired or under the influence of alcohol, drugs or medication.

2. Always wear eye protectors when using the air angle grinder - Eye
protectors must provide protection from flying particles from the front and
the side.

3. Always wear ear protectors when using the air angle grinder.

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 air angle
grinder.

6. Do not connect the air supply hose with your finger on the trigger of the air
angle grinder.

7. Do not exceed the maximum pressure for the air angle grinder: 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 air angle grinder for any other purpose than that described
in this book.

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10. Do not carry out any alterations or modifications to the air angle grinder.

11. Always disconnect from the air supply when:

• Performing any maintenance

• The air angle grinder is not in use.

• The air angle grinder will be left unattended.

• Moving to another work area.

• Passing the air angle grinder to another person.

12. Never use the air angle grinder if it is defective or operating abnormally.

13. The air angle grinder should be serviced at regular intervals by qualified
service personnel.

14. Avoid damaging the air angle grinder 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 air angle grinder by the air supply hose.

2. Never carry the air angle grinder with your finger on the trigger.

STORAGE

1. When not in use the air angle grinder 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 air angle grinder in environments where the temperature
is below 0

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o

C.

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OVERVIEW

NO DESCRIPTION NO DESCRIPTION

1 Throttle Lever Lock 5 Wheel Guard

2 Throttle Lever 6 Grinding Disc

3 Female Air Inlet (1/4” BSP) 7 Main Body

4 Side Handle

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AIR SUPPLY

WARNING: COMPRESSED AIR CAN BE DANGEROUS. ENSURE THAT YOU
ARE FAMILIAR WITH ALL PRECAUTIONS RELATING TO THE USE OF
COMPRESSORS AND COMPRESSED AIR SUPPLY.

• Use only clean, dry, regulated compressed air as a power source for

the air angle grinder.

• Air compressors used with the air angle grinder 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 air angle grinder.

• Never exceed the maximum operating pressure for the air angle

grinder.

AIR HOSE

• The air hose must be rated at least 150% of the maximum operating

pressure of the tool.

RECOMMENDED AIR SUPPLY CONNECTION

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BEFORE USE

FITTING THE SIDE HANDLE

1. Screw the side handle to the main
body as shown.

FITTING THE GRINDING DISC

WARNING: ENSURE AIRLINE IS DISCONNECTED FROM TOOL.

WARNING: WHEN FITTING DISCS, ALWAYS INSPECT FOR DAMAGE ETC,
NEVER USE GRINDING DISCS IF THEY ARE CHIPPED OR CRACKED.

1. Remove flange nut.

2. Fit grinding disc, ensure hole in disc
sits snugly over shoulder on arbor.

3. Refit the flange nut finger tight,

• Ensure shoulder on flange nut fits

inside the hole on the grinding
disc.

4. Using wrenches supplied, fit the
wrench (without pins) onto the
grinder arbor to prevent it from
turning,

5. Fit other wrench (with pins) into the
two holes in the flange nut. Hold
both wrenches firmly and tighten
by turning the wrench with pins in
a clockwise direction.

6. Remove wrenches before use.

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CONNECTING THE AIR HOSE

Ensure the compressor is turned off.

WARNING: COMPRESSED AIR CAN BE DANGEROUS. ENSURE THAT YOU
ARE FAMILIAR WITH ALL PRECAUTIONS RELATING TO THE USE OF
COMPRESSORS AND COMPRESSED AIR SUPPLY.

1. Remove the travel plug from the
bottom of the air angle grinder as
shown.

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 as shown.

• Use the adapter supplied if

required.

4. Connect the other end of the hose
to the compressor.

5. You can fit a whip hose with a
quick fit coupling if required
(available from your Clarke dealer.

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USING THE AIR ANGLE GRINDER

1. Connect airline and turn air supply
ON.

2. Hold firmly using both hands, right
hand on motor body and left
hand on handle.

3. To switch on, push throttle lever
lock forward, at the same time
depress throttle lever.

• Allow grinder to reach full speed

and stabilise before continuing.

4. Gently offer grinding disc to work piece, DO NOT FORCE IT, allow the air
grinder to do the work for which it was designed.

IMPORTANT: always keep disc guard square to work face, also DO NOT use
side of disc for grinding, this could cause tyhe disc to shatter resulting in
personal injury.

5. When finished grinding, with motor still running take disc away from work,
release throttle and wait for grinder to stop before carefully putting it
down.

DISCONNECTING THE AIR SUPPLY

Do not disconnect the air supply hose until the compressor has been shut
down and the compressed air released.

1. Switch off the compressed air supply (refer to relevant instruction book for
the shut down procedure).

2. Release the compressed air in the hose/tool by pulling the trigger for a
short time.

3. Once the pressure has been released, disconnect the air supply hose from
the tool.

4. Store the tool safely in its box in a dry, secure environment.

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SPECIFICATIONS

Model Number CAT122

Part Number 3110878

Operating Pressure 90 psi (6.2 bar)

Air Consumption 13 cfm (368 l/min)

Maximum Speed 10000 rpm

Air Inlet Size 1/4 inch BSP

Sound Pressure Level (LpA dB) 81.5 dB(A)

Sound Power Level (LwA dB) 92.5 dB(A)

Vibration Levels

2.35 m/s
K = 0.199 m/s

2

at the Main Handle

2

Dimensions (Length x Width x Height) 230 x 170 x 125 mm

Weight 1.96 kg

NOTE: Please note that the details and specifications contained herein,

are correct at the time of going to print. However CLARKE
International reserve the right to change specifications

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MAINTENANCE

WARNING: MAKE SURE THAT THE AIR ANGLE GRINDER IS DISCONNECTED
FROM THE AIR SUPPLY BEFORE STARTING ANY CLEANING, OR
MAINTENANCE PROCEDURES.

DAILY

• Drain water from air tank, air line and compressor.

• Pour a few drops of CLARKE Air Line Oil, into the air inlet. This should

be carried out regardless of whether or not the inline mini oiler is
used. If the inline mini oiler is not used, this procedure should be
repeated after every two to three hours of use.

• When not in use, disconnect from air supply, clean tool and store in

a safe, dry place.

NOTE: **Clarke Air Line Oil (part no. 3050825) is available from your

CLARKE dealer.

WEEKLY

• Remove the grub screw from the oil port on the side of the air angle

grinder and insert a few drops of oil.

CLEANING

• Keep the body of the tool clean and free from debris, grit or gum

deposits in the tool which may reduce efficiency.

SERVICE AND REPAIR

All servicing and repair must be carried out by qualified service technicians.

Please note that factors other than the tool may effect its operation and
efficiency such as reduced compressor output, excessive drain on the airline,
moisture, or restrictions in the line, or the use of connectors of improper size or
in poor condition which will reduce air supply.

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VIBRATION EMISSIONS

Employers are advised to refer to the HSE publication “Guide for Employers”.

All hand held power tools vibrate to some extent, and this vibration is
transmitted to the operator via the handle, or hand used to steady the tool.
Vibration from about 2 to 1500 hertz is potentially damaging and is most
hazardous in the range from about 5 to 20 hertz.

Operators who are regularly exposed to vibration may suffer from Hand Arm
Vibration Syndrome (HAVS), which includes ‘dead hand’, ‘dead finger’, and
‘white finger’. These are painful conditions and are widespread in industries
where vibrating tools are used.

The health risk depends upon the vibration level and the length of time of
exposure to it……in effect, a daily vibration dose.

Tools are tested using specialised equipment, to approximate the vibration
level generated under normal, acceptable operating conditions for the tool in
question. For example, a grinder used at 45° on mild steel plate, or a sander on
soft wood in a horizontal plane etc.

These tests produce a value ‘a’, expressed in metres per second per second,
which represents the average vibration level of all tests taken, in three axes
where necessary, and a second figure ‘K’, which represents the uncertainty
factor, i.e. a value in excess of ‘a’, to which the tool could vibrate under
normal conditions. These values appear in the specification panel below.

Model Number CAT122

Description Air Angle Grinder

Declared vibration emission value in accordance with EN12096

Measured vibration emission value - a:

Value determined according to EN28622-1

2.35 m/s
K = 0.199 m/s

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at the Main Handle

2

You will note that a third value is given in the specification - the highest
measured reading in a single plane. This is the maximum level of vibration
measured during testing in one of the axes, and this should also be taken into
account when making a risk assessment.

2

‘a’ values in excess of 2.5 m/s
prolonged periods. A tool with a vibration value of 2.8 m/s
to 8 hours (cumulative) per day, whereas a tool with a value of 11.2 m/s

are considered hazardous when used for

2

may be used for up

2

may

be used for ½ hour per day only.

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The graph on the right shows the
vibration value against the maximum
time the respective tool may be
used, per day.

The uncertainty factor should also be
taken into account when assessing a
risk. The two figures ‘a’ and ‘K’ may
be added together and the resultant
value used to assess the risk.

It should be noted that if a tool is
used under abnormal, or unusual
conditions, then the vibration level
could possibly increase significantly. Users must always take this into account
and make their own risk assessment, using the graph above as a reference.

Some tools with a high vibration value, such as air angle grinders, are generally
used for a few seconds at a time, therefore the cumulative time may only be
in the order of a few minutes per day. Nevertheless, the cumulative effect,
particularly when added to that of other hand held power tools that may be
used, must always be taken into account when the total daily dose rate is
determined.

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DECLARATION OF CONFORMITY

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NOTES

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