AIR DRILL MODEL NO: CAT27B & CAT94 PART NO: 3110406 & 3110850 OPERATING & MAINTENANCE INSTRUCTIONS GC0713
INTRODUCTION Thank you for purchasing this CLARKE Air Drill. 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 tool. 4. Do not operate the tool where there are flammable liquids or gases. 5. Keep the air supply hose away from heat, oil and sharp edges. 6.
• The drill will be left unattended. • Moving to another work area. • Passing the drill to another person. 12. Never use the tool if it is defective or operating abnormally. 13. The drill should be serviced at regular intervals by qualified service personnel. 14. Avoid damaging the drill for example by applying excessive force of any kind. 15. ALWAYS maintain the tool with care. Keep it clean for the best and safest performance. 16. Quick change couplings should not be located at the tool.
OVERVIEW NO DESCRIPTION NO DESCRIPTION 1 Chuck 3 Handle 2 Trigger 4 1/4” BSP (Female Air Inlet) The CAT27B and CAT94 differ only by virtue of the CAT94 having a polished metal casing as opposed to a painted finaish. 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.
• 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. 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.
OPERATION OPERATING THE AIR DRILL WARNING: MAKE SURE THAT THE CHUCK KEY HAS BEEN REMOVED BEFORE USING THE DRILL. 1. Squeeze the trigger to start the drill. 2. Wait until the drill is running at its maximum speed before applying it carefully to the workpiece. 3. Release the trigger to stop. 4. Always ensure the drill has stopped before putting it down. INSERTING/REMOVING THE DRILL BIT 1. Open the chuck jaws by inserting the chuck key in one of the holes in the chuck and turning it as shown. Drill bit 2.
1. Refer to the compressor instruction manual for the procedure to shut down and release the compressed air. 2. Once the pressure has been released, disconnect the air supply hose from the air drill. Store the tool safely in its box in a dry, secure environment. 9 Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.
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.
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 .
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 Screw 15 Cylinder 2 Drill Chuck 16 Motor Housing 3 Gear Housing 17 Trigger 4 Pin 18 n/a 5 Ball Bearing 19 Trigger Valve Locker 6 Planet Carrier 20 Throttle Valve 7 Planet Gear 21 Valve Return Spring 8 Internal Gear 22 O-Ring 9 Ball Bearing 23 Valve Stem 10 Bearing Housing 24 O-Ring 11 End Plate 25 Roll Pin 12 Rotor Body 26 Exhaust Deflector 13 Rotor Blade 27 Screen Filter 14 Motor Pin 28 Air Inle
SPECIFICATION Model Numbers CAT27B and CAT94 Part Numbers 3110406 and 3110850 Min. Hose Size (ID) 8 mm Chuck Size 3/8” Operating Pressure 90 psi (6.2 bar) Air Consumption 4 cfm No Load Speed 2800 rpm @ 90psi Air Inlet Size 1/4“ BSP Sound Pressure Level (LpA dB) 89.9 dB(A) Sound Power Level (LwA dB) 101 dB(A) Vibration Levels 1.48 m/s2 Weight 1 kg Please note that the details and specifications contained herein are correct at the time of going to print.
DECLARATION OF CONFORMITY 15 Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.
