HEAVY DUTY IMPACT WRENCH Model No: CAT81 Model No: 3110805 OPERATING & MAINTENANCE INSTRUCTIONS GC08/13
INTRODUCTION Thank you for purchasing this CLARKE Impact Wrench. Before attempting to operate the machine, it is essential that you read this manual thoroughly and carefully follow all instructions given. In doing so you will ensure the safety of yourself and that of others around you, and you can also look forward to the product giving you long and satisfactory service. GUARANTEE This CLARKE product is guaranteed against faulty manufacture for a period of 12 months from the date of purchase.
SAFETY PRECAUTIONS 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 wrench. Make sure that any other persons in the work area are suitably dressed and are wearing eye and ear protection. 4. Keep the work area well lit. 5. Although the impact wrench may be used outdoors, do not leave it exposed to the elements.
12. NEVER force or misuse the tool. It will do a better and safer job at the rate for which it was designed. 12. NEVER use this product if it is defective / operating abnormally. 13. NEVER carry the wrench with your finger on the trigger. 14. Quick change couplings should not be located at the tool. They add weight and could fail due to vibration. 15. ALWAYS check the wrench for any damage or any condition that could affect its operation. Any damaged part should be properly repaired. 16.
INTRODUCTION The CAT81 is a professional 1/2” square drive impact wrench with four power settings. 1. 1/2” Square Socket Drive 2. Forward/Reverse selector 3. Trigger 4. Speed Control Regulator 5. Airline Connection with filter 6. Lubrication Port 1 2 6 3 4 5 FIG 1 5 Parts & Service: 020 8988 7400/E-mail:Parts@clarkeinternational.com or Service@clarkeinternational.
AIR SUPPLY REQUIREMENTS WARNING: COMPRESSED AIR CAN BE DANGEROUS. ENSURE THAT YOU ARE THOROUGHLY 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 in the air compressor will accelerate wear and corrosion in the moving parts.
BEFORE USE CONNECTING THE 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 SUPPLIES. Note: Ensure the compressor is turned off. 1. Remove the plastic blanking plug from the connection port of the tool 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.
was set. The tool is now set to duplicate that tightness. For future use, note that specific setting. 6. When critical torque values are not required, turn nut or bolt until it fits snugly, and then turn a further one quarter to one half a turn - slightly more if gaskets are used between surfaces. 7. For additional power during disassembly work, turn the air line regulator to its highest setting.
4. ALWAYS finish tightening with a torque wrench. The weight of the vehicle will need to be placed on the wheel to prevent it from rotating while the nuts are tightened. Ensure the final torque applied to the nuts meets the vehicle manufacturer’s recommendations. DISCONNECTING THE AIR SUPPLY 1. Do not disconnect the air supply hose until the compressor has been shut down and the compressed air pressure released. 2. Once the pressure has been released, disconnect the air supply hose from the tool.
SERVICE AND REPAIRS 1. Keep the tool clean at all times, and ensure that the bolts securing the case remain tight. • All bearings etc, in this machine are lubricated with sufficient high grade lubricant for the machines lifetime under normal operating conditions, therefore no further lubrication is required.
TROUBLESHOOTING SYMTOM PROBLEM Tool runs at normal 1. Motor parts worn. speed but slows down under load. 2. Worn or sticking mechanism due to lack of lubricant. Tool runs slowly. Air 1. Motor parts jammed flows lightly from with gum &/or dirt exhaust. particles. Tool will not run. Air flows freely from exhaust. SOLUTION 1. Return to dealer for overhaul 2. Drip air tool lubricating oil into air inlet and soak moving parts. 1. Examine inlet air filter for cleanliness. 2. Regulator in closed position. 2.
PARTS LIST No Description Part No Qty No Description Part No Qty 1 Oil Seal KL004202 1 27 Valve Stem KL290010 1 2 Cap Screw KL000117 1 28 Bushing KL2501043 1 3 Spring Washer KL001802 1 29 Steel ball KL003801 1 4 Hammer Case KL300010 1 30 Spring KL2501009 1 5 Front Gasket KL290008 1 31 Hose Adaptor KL2501010 1 6 Anvil Bush KL302029 1 32 Pin KL2501032 1 7 Spacer KL302028 1 33 Spring KL2501031 1 8 O-Ring KL004103 1 34 Set Screw KL000609 1 9 Anvil Co
PARTS DIAGRAM 13 Parts & Service: 020 8988 7400/E-mail:Parts@clarkeinternational.com or Service@clarkeinternational.
VIBRATION EMISSIONS HAND-ARM VIBRATION 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 herz is potentially damaging and is most hazardous in the range from about 5 to 20 herz.
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. ‘a’ values in excess of 2.5 m/s2 are considered hazardous when used for prolonged periods. A tool with a vibration value of 2.8 m/s2 may be used for up to 8 hours (cumulative) per day, whereas a tool with a value of 11.
TECHNICAL SPECIFICATION Feature Specification Net Weight 2.7 kg Dimensions (l x w x h) mm 240 x 75 x 210 Drive Size 1/2" Sq (13mm) Airline Connection size 1/4" BSP Min Air Hose Size 8mm dia (5/16") Maximum Air Pressure requirement 90psi (6.2bar) Maximum free speed 7000 rpm Max tightening torque 280 ft/lb Max Bolt Capacity 5/8" Nominal Air Consumption 4.2 cfm Sound pressure level (Lp) 88.2 dB(A) Sound power level measured (Lw) 101.2 dB(A) Sound power level 101.
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