IMPACT WRENCH MODEL NO: CAT79 PART NO: 3110795 OPERATING & MAINTENANCE INSTRUCTIONS GC0713
INTRODUCTION Thank you for purchasing this CLARKE Impact Wrench. 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. IMPORTANT Please read all of the safety and operating instructions carefully before using this product.
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 impact wrench. 4. Do not operate the impact wrench where there are flammable liquids or gases. 5. Keep the air supply hose away from heat, oil and sharp edges. 6.
10. Do not carry out any alterations or modifications to the impact wrench. 11. Always disconnect from the air supply when: • Performing any maintenance • The impact wrench is not in use. • The impact wrench will be left unattended. • Moving to another work area. • Passing the impact wrench to another person. 12. Never use the impact wrench if it is defective or operating abnormally. 13. The impact wrench should be serviced at regular intervals by qualified service personnel. 14.
OVERVIEW 1 3 2 4 NO DESCRIPTION NO DESCRIPTION 1 Anvil 3 Combined Direction/Speed Control 2 Trigger 4 1/4” BSP (Female Air Inlet) 5 Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.
THE COMPRESSED AIR SUPPLY AIR SUPPLY 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 impact wrench 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 impact wrench.
• 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. SAE 10 oil should be used, and the lubricator adjusted to approx 2 drops per minute. 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.
USING THE FORWARD/REVERSE BUTTON 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.
OPERATION 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 anvil 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 5 settings available.
MAINTENANCE WARNING: MAKE SURE THAT THE IMPACT WRENCH IS DISCONNECTED FROM THE AIR SUPPLY BEFORE STARTING ANY CLEANING, OR MAINTENANCE PROCEDURES. DAILY • Before use, drain water from the air tank, air line and compressor. • 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 inline mini oiler is not used, this procedure should be repeated after every two to three hours of use.
moisture or restrictions in the air-line, or the use of connectors of improper size or poor condition which will reduce air supply. 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. **Clarke Air Line Oil (part no. 3050825) is available from your CLARKE dealer.
TROUBLESHOOTING SYMPTOM PROBLEM SOLUTION Tool runs at normal speed but slows down under any load. 1. Excessive pressure on 1. Reduce the force drill. applied to the drill. 2. Motor parts worn. 2. Return to Clarke dealer for repair. 3. Worn or sticking 3. Drip air tool lubricating mechanism due to oil into air inlet. Allow oil lack of lubricant. 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.
PARTS LIST & DIAGRAM No Description No Description 1 Housing Assy (inc 7,10,17,18,19,20) 24 Ball Bearing 2 Throttle Valve 25 Retainer 3 O-Ring 26 Cylinder 4 Throttle Valve Spring 27 Cylinder Dowel 5 Throttle Valve Plunger 28 Not Used 6 Air Inlet 29 Rotor Blade 7 Throttle Valve Seat 30 Front End Plate 8 Trigger 31 Rear End Plate 9 Trigger Pin 32 Gasket 10 Reverse Valve Bush 33 Motor Clamp Washer 11 O-Ring 34 Hammer Frame 12 Reverse Valve 35 Hammer Pin 13 P
No Description No Description 13 Reverse Valve Steel Ball 36 Washer 14 Reverse Valve Spring 37 Hammer 15 Reverse Valve Knob 38 Hammer Case 16 Reverse Valve Knob Screw 39 Gasket 17 Grease Fitting 40 Bushing 18 Reverse Valve Bushing Gear 41 Screw 19 Set Screw 42 Separator 20 Heli-coil 43 Standard Anvil 21 Not Used 44 Socket Retainer 22 Rotor 45 O-Ring 23 Ball Bearing 46 2” Extended Anvil TK Tune-up Kit (includes 3,4,11,13,14,23,24, 25,29,32,39,44 & 45) SPECIFI
DECLARATION OF CONFORMITY 15 Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.
