Clarke CAT218 Installation and operation manual

OPERATING & MAINTENANCE
INSTRUCTIONS
ORIGINAL INSTRUCTIONS GC 04-22
6PC AIR SCRAPER TOOL SET
MODEL NO: CAT218
PART NO: 3110472

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INTRODUCTION
Thank you for purchasing this CLARKE Air Scraper Tool Set.
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.
SPECIFICATIONS
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 at any time without prior notice. Always consult the
machine’s data plate.
Model Number CAT218
Dimensions (L x W x H) 210 x 50 x 35 mm
Weight 1 kg
Air Inlet Size 1/4“BSP (female)
Operating Pressure 90 psi (6.2 bar)
Air Consumption 1.25 cfm (average)
Blows per minute 4500 bpm
Stroke length 1-9/16”
Sound Pressure Level (LpA dB) 83 dB(A)
Guaranteed Sound Power 94 dB(A)
Vibration Levels 9.5 m/s2
Uncertainty Factor 1.5

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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.
PERSONAL SAFETY
1. Stay alert and use common sense - do not operate the air tool when you
are tired or under the influence of alcohol, drugs or medication.
2. ALWAYS wear eye protection when using the tool - This must provide
protection from flying particles from the front and the side.
3. ALWAYS wear ear protection when using the air tool.
4. ALWAYS wear a dust mask when operating this type of tool.
5. DO NOT overreach - Keep proper footing and balance at all times.
6. Remove any wrench before turning the power tool on. A wrench left
attached to a moving part of the power tool may result in personal injury.
USE OF AIR POWERED TOOLS
1. NEVER use oxygen, CO2, combustible gases or any type of bottled gas as a
source of power for the tool.
2. DO NOT connect the air supply hose with your finger on the trigger.
3. DO NOT exceed the maximum pressure for the tool of 90 psi / 6.2 bar.
4. Check hoses for leaks or worn condition before use, and ensure that all
connections are secure.
5. DO NOT use the tool for any other purpose than that described in this
manual.
6. ALWAYS keep the air supply hose away from heat, oil and sharp edges.
7. DO NOT fit the tool to any stand or clamping device that may damage it.
CAUTION: FAILURE TO FOLLOW THESE PRECAUTIONS COULD RESULT IN
PERSONAL INJURY, AND/OR DAMAGE TO PROPERTY.

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8. DO NOT carry out any alterations or modifications to the tool.
9. ALWAYS disconnect from the air supply when:
• Performing any maintenance.
• The tool is not in use.
• The tool will be left unattended.
• Moving to another work area.
• Passing the tool to another person.
10. NEVER use the tool if it is defective or operating abnormally.
11. The tool should be serviced at regular intervals by qualified service
personnel.
12. Avoid damaging the tool by applying excessive force of any kind.
13. ALWAYS maintain the tool with care. Keep it clean for the best and safest
performance.
14. Quick change couplings should not be located at the tool. They add
weight and could fail due to vibration.
15. DO NOT force or misuse the tool. It will do a better and safer job at the rate
for which it was designed.
16. 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.
AIR CHISEL SPECIFIC HAZARDS
1. Only use accessories designed for use with this tool.
2. NEVER use any of the blades supplied as a hand struck tool.
3. NEVER use blunt blades which require excessive pressure and can break
from fatigue. ALWAYS use sharp tools.
4. NEVER mis-use the tool by prizing which can result in a broken tool.
5. Ensure there are no hidden electrical cables, gas pipes etc, which could
cause a hazard if damaged by action of the blades.
USE OF THE SCRAPING TOOL
1. Ensure that the workpiece is kept at waist height where possible. NEVER use
the tool between the legs whilst sitting on the floor.
2. ALWAYS allow the tool to run up to full operating speed before applying it
to the job.

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3. Use clamps, or vices to hold a loose workpiece. Failure to secure the
workpiece could result in personal injury.
4. Inspect the blades before use. DO NOT use if damaged.
5. ALWAYS wear a face mask when using the tool as protection from
airbourne particles. Avoid disturbing existing dust and minimise the
scattering of dust in the workplace environment. Take steps to control the
dust at the point of emission.
TRANSPORTATION AND STORAGE
1. NEVER carry the tool by the air supply hose.
2. NEVER carry the tool with your finger on the trigger.
3. When not in use the tool should be disconnected from the air supply and
stored in a dry place out of the reach of children.
4. Avoid storing the tool in environments where the temperature is below 0oC.
COMPRESSED AIR REQUIREMENTS
Use only clean, dry, regulated compressed air as a power source.
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. ensure any moisture is drained from the compressor daily
and the inlet filter is kept clean.
If an unusually long air hose is required, (over 8 metre by up to 15 psi to
maintain air pressure at the tools), the line pressure or the hose inside diameter
may need to be increased.
For optimum performance it is recommended that a 3/8” I/D airline hose is
used.
A typical air line layout is shown below. If an automatic in-line filter/regulator is
used, it will keep the tool in good condition, but should be regularly checked
and topped up with oil. SAE 10 oil should be used, and the lubricator adjusted
to approx 2 drops per minute.
WARNING: COMPRESSED AIR CAN BE DANGEROUS. ENSURE THAT YOU
ARE FAMILIAR WITH ALL PRECAUTIONS RELATING TO THE USE OF AIR
COMPRESSORS AND COMPRESSED AIR SUPPLIES.

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The air hose must be rated at least 150% of the maximum operating pressure of
the tool.
.
Never exceed the maximum operating pressure for the tool. It is
recommended that air pressure to this tool does not exceed 90 psi at the tool
when running. Higher pressures and unclean air will shorten the life of the tool
due to faster wear and is a possible safety hazard.
Check air hose for wear of damage before use.

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OVERVIEW
NO DESCRIPTION NO DESCRIPTION
1 Blade Locking screws 6 Allen (hex) Key
2Trigger 71¾” Wide Curved Blade
3 Speed Regulator 8 1¾” Offset Blade
4 Air Inlet Port (with travel plug) 9 1” Flat Blade (one shown fitted)
5 Inlet hose adaptor 10 1” 45 degree Angled Blade

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BEFORE USE
NOTE: Ensure the compressor is turned off and remove the travel plug
from the inlet connection of the air tool.
1. If required, connect an in-line mini
oiler to the tool.
• A mini oiler helps to prolong the
life of the air tool.
2. Connect a suitable hose to the air
inlet as shown by screwing in the
male connector as shown.
3. Connect the other end of the hose
to the compressor.
4. Run the compressor at low pressure and check for leaks.
5. If a mini-oiler is not being used, run a few drops of oil through the tool
before use. It can be entered through the air inlet or via the hose at the
nearest connection to the air supply.
Your air tool is now ready for use. You can fit a whip hose with a quick fit
coupling if required (available from your Clarke dealer).
FITTING THE BLADES
CAUTION: THE BLADES ARE SHARP AND MAY CUT YOU IF BADLY HANDLED.
TAKE CARE DURING BLADE INSTALLATION AND REMOVAL.
1. Disconnect the air scraper
from the air supply and
squeeze the trigger lever (C) to
release any residual air.
2. Choose the blade that is
appropriate for the task.
3. Loosen both cap head screws (A)
with a hex key. Remove the
screws by hand.
WARNING: COMPRESSED AIR CAN BE DANGEROUS. ENSURE THAT YOU
ARE FAMILIAR WITH ALL PRECAUTIONS RELATING TO THE USE OF AIR
COMPRESSORS AND COMPRESSED AIR SUPPLIES.

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4. Remove the current blade by sliding it out of the blade holder (B). Be
careful of the sharp edge.
5. Hold the blade only by the flat surfaces. Insert the selected blade into the
blade holder's slot and align the blade bolt holes with the screw holes.
Make sure the bevel is facing upward (same facing as the screws).
6. Insert a screw into a screw hole and hand-tighten. Repeat with the second
screw. You may need to shift the blade if the bolt holes are not aligned to
allow the screw to enter the bottom half of the blade holder. Tighten with
the hex key. DO NOT overtighten.
7. Reconnect the air hose and start the compressor.
8. Test the air scraper without load to ensure the blade is secure. Point the
blade at an unoccupied spot in case the blade is ejected.
OPERATION
1. Set up the compressor and re-set
the air pressure to the scraper.
2. Squeeze the trigger to start the
tool and the blade will vibrate.
3. Increase or decrease the blows/
minute by adjusting the airflow
regulator.
4. Place the blade firmly at an angle
between the surface and the
material you want to remove.
Slowly push forward so the blade slides over the surface while separating
the unwanted material.
5. Release the trigger to stop the tool. Brush off all debris and resume scraping
until the task is complete.
SCRAPING TIPS
• DO NOT use excess pressure on the blade. Let the tool do the work.
• Allow the blade to reach working speed
• Avoid overloading the scraper If it becomes hot during use. Stop
work for a few minutes while it cools down.

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DISCONNECTING THE AIR SUPPLY
1. DO NOT disconnect the air supply hose until the compressor has been shut
down and the compressed air released.
2. Refer to the compressor instruction manual for the procedure to shut down
and release the compressed air.
3. Once the pressure has been released, disconnect the air supply hose from
the tool.
CARE AND MAINTENANCE
DAILY
1. Before use, drain water from the air tank, air line and compressor.
2. Pour a few drops of CLARKE airline oil, into the air inlet. This should be
carried out regardless of whether or not an in-line mini oiler is used. If an in-
line mini oiler is not used, this procedure should be repeated after every
two to three hours of use.
CLEANING
1. Keep the body of the tool clean and free from debris.
2. Grit or gum deposits inside the tool
may also reduce its efficiency. This
condition can be corrected by
cleaning out the air strainer and
flushing out the tool with gum
solvent or oil, or failing this, the
motor may require dismantling.
This is better left to your CLARKE
dealer.
3. Periodically, check the air inlet
strainer for blockage and clean if
necessary.
WARNING: MAKE SURE THAT THE AIR TOOL IS DISCONNECTED FROM THE
AIR SUPPLY BEFORE STARTING ANY CLEANING OR MAINTENANCE
PROCEDURES.

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SERVICE AND REPAIR
If the tool runs erratically or becomes inefficient although the air supply is in
good order, it may be necessary to dismantle the air motor and replace any
worn or damaged parts. Such servicing and repair work should be carried out
by a qualified service technician.
PERFORMANCE
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 air-line, or the use of connectors of improper size
or poor condition which will reduce air supply.
**CLARKE Air Line Oil (part no. 3050825) is available from your CLARKE dealer.
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 the air supply, clean the tools and when
storing, replace the blanking plug once the airline is disconnected.
ACCESSORIES
A wide range of accessories is available including filter/regulators, lubricators,
high-pressure hoses (5 to 50 metres) etc. Contact your CLARKE dealer for
further information or CLARKE International Service Department.

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TROUBLESHOOTING
SYMPTOM PROBLEM SOLUTION
Tool runs at normal
speed but slows down
under any load.
1. Excessive pressure on
tool.
2. Motor parts worn.
3. Worn or sticking
mechanism due to
lack of lubricant.
1. Reduce the force
applied to the tool.
2. Return to your CLARKE
dealer for repair.
3. Drip air tool lubricating
oil into air inlet. Allow oil
to soak moving parts
before using.
Tool runs slowly. Air flows
weakly from exhaust.
1. Motor parts jammed
with gum/dirt.
2. Regulator in closed
position.
3. General airflow
blocked by dirt.
1. Examine inlet air filter for
cleanliness.
2. Adjust regulator to open
position.
3. Operate tool in short
bursts.
Tool will not run. Air flows
freely from exhaust.
1. Motor vanes stuck
due to buildup of
foreign material.
1. Disconnect air supply
and rotate tool assembly
manually.
2. Try operating tool in
short bursts.
3. Drip a few drops of air
tool lubricating oil into air
inlet to soak moving parts
Loss of power or erratic
performance.
1. Excess demand on
air supply. Wrong size
or type of inlet
connectors.
2. Moisture or other
restriction in airline
3. Compressor supplies
insufficient air.
4. Air hose leaks.
1. Isolate other air tools in
use. Check air hose and
confirm correct fittings.
2. Vent system and ensure
air reservoir and airline
are free of water.
Insert oil into tool and run
briefly. Confirm no water
is expelled.
3. Ensure flow rate is
adequate for the size of
air tool.
4. Tighten and seal fittings.
Tool will not shut off. 1. Throttle O-rings
damaged or ill-fitting
in seat.
1. Return to your CLARKE
dealer for repair.

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COMPONENT PARTS
No Description No Description
1 Handle 11 Cylinder
2 Valve stem 12 Locknut
3 O-ring 13 Blade holder
4 Spring 14 Cap head screw
5 Plug screw 15 Blade - flat (25mm)
6 Trigger Assembly 16 Blade - L-shaped (45mm)
7 Bolt 17 Blade - bent (45mm)
8 Air regulator 18 Blade - angled (35mm)
9 Upper valve 19 Hex wrench
10 Piston

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DECLARATIONS OF CONFORMITY

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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.