Clarke CAT141 Operating instructions
Clarke CAT131 is a powerful impact wrench designed for heavy-duty tasks such as tightening and loosening nuts and bolts on cars, trucks, and other machinery. With its 1/2" square drive and maximum torque of 360 ft-lbs, it delivers exceptional power and control. The CAT131 features a forward/reverse switch for easy direction changes and a three-speed power regulator for adjusting the torque output. It also comes with a variety of impact sockets, a mini-oiler, and an extension bar for added versatility.
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AIR IMPACT WRENCH
MODEL NO: CAT131 & 132
PART NO: 3120145 / 3120146
OPERATING & MAINTENANCE
INSTRUCTIONS
GC0614
INTRODUCTION
Thank you for purchasing this CLARKE Impact Wrench. The CAT131 and CAT132 are identical wrenches, the CAT132 being supplied in a moulded plastic storage case which contains the following:
• 1 x Mini-Oiler
• 1 x Hex Key
• Oil Bottle
• 1 x Extension Bar
• Snap Connector fitting
• 10 Impact Sockets, (9, 10, 11, 13,
14, 17, 19, 22, 24 & 27mm sizes)
IMPORTANT
Please read all of the safety and operating instructions carefully before using this product. 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. The following safety symbols are to be found on the tool.
Read this instruction booklet carefully before use.
Wear ear protection.
Wear eye protection.
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.
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
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 tool.
4. Do not operate the tool where there are flammable liquids or gases.
USE OF POWER TOOLS
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. Ear protectors should also be worn.
3. Do not overreach - Keep proper footing and balance at all times.
4. Never use oxygen, CO 2 , combustible gases or any type of bottled gas as a source of power for this tool.
5. Do not connect the air supply hose with your finger on the trigger.
6. Do not exceed the maximum pressure for the tool of 90 psi / 6.2 bar.
7. Keep the air supply hose away from heat, oil and sharp edges.
8. Do not fit the tool to any stand or clamping device that may damage it.
9. Check hoses for leaks or worn condition before use, and ensure that all connections are secure.
10. Do not use the tool for any purpose than that described in this manual.
11. Do not carry out any alterations or modifications to the tool.
12. Always disconnect from the air supply when:
• Performing any maintenance.
• The tool is not in use.
• The tool will be left unattended.
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
• Moving to another work area.
• Passing the tool to another person.
13. Never use the tool if it is defective or operating abnormally.
14. This tool should be serviced at regular intervals by qualified personnel.
15. Avoid damaging the tool for example by applying excessive force of any kind.
16. Always maintain the tool with care. Keep it clean for the best and safest performance.
17. Quick change couplings should not be located at the tool. They add weight and could fail due to vibration.
18. Do not force or misuse the tool. It will do a better and safer job at the rate for which it was designed.
19. Do not remove any labels. Damaged labels should be replaced.
20. 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.
IMPACT WRENCH SAFETY INSTRUCTIONS
1. Always use the impact wrench in the manner and for the functions described in these instructions.
2. Always ensure the wrench is not moving and disconnected from the air supply when changing sockets etc. Use only Impact Wrench sockets....DO
NOT use standard sockets.
3. Always finish tightening wheel nuts or engine parts with a torque wrench or suitable spanner to the correct torque as recommended by the vehicle manufacturer.
4. Always avoid excessive use of the impact wrench. When tightening a nut or bolt, never allow the wrench to impact more than 8 times - to avoid over tightening - 3 to 4 impacts is normally sufficient.
5. Always ensure that the socket is correctly installed before switching on.
6. Always only use sockets which are specified for impact wrench use.
7. Due to the possible presence of asbestos dust from brake linings, always wear suitable respiratory protection.
8. Never carry the impact wrench by the air supply hose.
9. Always disconnect from the air supply when changing impact sockets or when the wrench is not required for immediate use in order to avoid accidental starting.
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
10. Always store this product in a dry, secure place out of reach of children or untrained users.
11. Always use both hands to control the impact wrench.
12. Always ensure the wrench has stopped before putting it down after use.
TRANSPORT & STORAGE
1. Never carry the tool by the air hose.
2. Never carry the tool with your finger on the trigger.
3. 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).
4. Avoid storing the tool where the temperature is below 0 o
C.
Please keep these instructions in a safe place for future reference.
OVERVIEW
NO DESCRIPTION
1 Square Drive Shaft
NO DESCRIPTION
3 Direction/Speed Control
2 Trigger 4 Air
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
COMPRESSED AIR REQUIREMENTS
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.
• 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 metres), the line pressure or the hose inside diameter may need to be increased.
• The air hose must be rated at least 150% of the maximum operating pressure of the tool.
• A typical air line layout is shown above. 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. clarke airline oil should be used, and the lubricator adjusted to approx 2 drops per minute.
• For optimum performance it is recommended that a 3/8” ID hose is used.
• 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 dirty air will shorten the life of the tool due to faster wear and is a possible safety hazard.
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
BEFORE USE
WARNING: COMPRESSED AIR CAN BE DANGEROUS. ENSURE THAT YOU
ARE FAMILIAR WITH ALL PRECAUTIONS RELATING TO THE USE OF AIR
COMPRESSORS AND COMPRESSED AIR SUPPLY.
NOTE: Ensure the compressor is turned off.
1. If required, connect an in-line mini oiler to the tool.
• A mini oiler helps to prolong the life of the impact wrench.
2. 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 connector or via the hose at the nearest connection to the air supply.
3. Connect a suitable hose as shown.
4. Connect the other end of the hose to the compressor.
5. Turn on the air supply and check for air leaks. Rectify any found before proceeding.
• PTFE tape may be useful for sealing threaded connections.
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.
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
OPERATION
WARNING: WAIT UNTIL THE ANVIL HAS STOPPED ROTATING BEFORE
OPERATING THE FORWARD/REVERSE BUTTON.
Forward/Reverse rotation is selected by pushing the combined Forward/
Reverse knob/power regulator in the direction shown by the arrow on the back of the wrench.
1. For normal tightening, the wrench should be operated in the forward
(F) direction.
2. For loosening, the wrench should be operated in the reverse (R) direction.
FITTING THE IMPACT SOCKET
WARNING: NEVER USE STANDARD SOCKETS. THESE MAY SHATTER WITH
SERIOUS CONSEQUENCES. ONLY USE IMPACT SOCKETS DESIGNED FOR
USE WITH IMPACT TOOLS.
1. Select the impact socket you require, which must be in good condition and fit the tool exactly.
2. Push the socket onto the square drive as shown.
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
OPERATING THE IMPACT WRENCH
1. Locate the socket over the nut to be tightened or loosened.
2. Squeeze the trigger to start the wrench.
3. Release the trigger switch to stop the wrench.
• The square drive shaft will continue to rotate very briefly after the trigger has been released.
ADJUSTING THE POWER
1. To adjust the power, set the air regulator to one of the 3 settings available. (Setting 1-Low, 3 -High)
• These numbers are only for reference and do not denote a specific amount of power.
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 vent the compressed air.
3. Once the pressure has been released, disconnect the air supply hose from the air tool.
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
MAINTENANCE
WARNING: MAKE SURE THAT THE AIR TOOL IS DISCONNECTED FROM THE
AIR SUPPLY BEFORE STARTING ANY CLEANING, OR MAINTENANCE
PROCEDURES.
DAILY
1. Before use, drain water from the airline filter and compressor.
2. Pour a few drops of Clarke air-line oil, into the tool air inlet. This should be carried out regardless of whether or not an in-line mini oiler is used. If an inline mini oiler is not used, this procedure should be repeated after every two to three hours of use.
3. Keep the body of the tool clean and free from debris.
WEEKLY
• Check the air inlet screen filter for blockage and clean if necessary.
CLEANING
1. Grit or gum deposits in the tool may reduce efficiency and cause the tool to run erratically. This condition can be corrected by cleaning the air strainer and flushing out the tool with gum solvent or oil.
2. Failing this, the tool should be disassembled, thoroughly cleaned, dried and reassembled.
3. The tool may be dismantled by removing the front cover using the hex key supplied prior to replacing any worn or damaged parts. You may prefer to take the tool to your Clarke dealer if internal maintenance is required.
4. While in a dismantled state, it may be desirable to grease the hammer mechanism and applying a small amount of good quality bearing grease.
• This may be better left to your Clarke dealer.
• A hex key is provided for removing the end cover from the wrench.
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
TROUBLESHOOTING
SYMPTOM PROBLEM SOLUTION
Tool runs at normal speed but slows down under any load.
Tool runs slowly. Air flows weakly from exhaust.
1. Motor parts worn.
2. Worn or sticking
mechanism due to
lack of lubricant.
1. Motor parts jammed
with gum/dirt.
2. Air-line regulator in
closed position.
3. General airflow
blocked by dirt.
1. Return to Clarke dealer
for repair.
2. Drip air tool lubricating
oil into air inlet. Allow oil
to soak moving parts
before using.
1. Examine inlet air filter for
blockage. Drip a few
drops of air tool lubricat-
ing oil into air inlet.
2. Adjust in-line regulator to
open position.
3. Operate tool in short
bursts.
Tool will not run. Air flows freely from exhaust.
Tool will not shut off.
1. Motor vanes stuck
due to buildup of
foreign material.
1. Throttle O-rings
damaged or ill-fitting
in seat.
1. Disconnect air supply
and rotate tool assembly
manually.
2. Try operating tool in
short bursts.
3. Tap motor housing gently
with a rubber mallet.
4. Drip a few drops of air
tool lubricating oil into air
inlet to soak moving
parts.
1. Return to Clarke dealer
for repair.
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.
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
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 & store in a safe, dry place.
SPECIFICATION
Model Number
Part Number(s)
Min. Hose Size (ID)
Max Operating Pressure
Air Consumption
Max No Load Speed
CAT131/CAT132
3120145 / 3120146
3/8” BSP
90 psi (6.2 bar)
18 cfm (max @90psi) average 6.5 cfm
7000 rpm @ 90psi
Max Torque
Air Inlet Size
680 Nm (500 ft/lb)
1/4“BSP
Sound Pressure Level (LpA dB) 87 dB(A)
Sound Power Level (LwA dB) 98 dB(A)
Vibration Levels
4.35 m/s
2
(uncertainty factor K= 1.5m/s
2)
Weight(s) 2.6 kg (CAT131)
4.2 kg complete (CAT132)
Wrench Dimensions (L x W x H) 210 x 190 x 90 mm
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.
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
PARTS LIST
No Description
6
7
4
5
1
2
3
Main Housing
Trigger Sleeve
Trigger
Trigger Shaft
Screw
Forward/Reverse Valve Knob
Valve Bushing
8
9
O-Ring
Valve
10 Spring
11 Steel Ball
12 Forward/Reverse Valve Knob
13 Valve Seat
14 Throttle Valve
15 Valve Spring
16 Exhaust Deflector
17 Washer
18 Air Inlet
19 Screw
20 O-Ring
21 Dowel Pin
22 Gasket
No Description
23 Circlip
24 Rear Rotor Bearing
25 Rear Plate
26 Cylinder
27 Rotor
28 Rotor Blade
29 Front Plate
30 Bearing
31 Washer
32 Washer
33 Hammer
34 Hammer Cage
35 Hammer Pin
36 Square Drive Shaft
37 Bush
38 Gasket
39 Hammer Casing
40 Spacer
41 Cap Screw
42 Thread Bushing
43 Soft Grip
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 the Clarke International
Service Department.
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
PARTS DIAGRAM
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
DECLARATION OF CONFORMITY
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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]

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