INTRODUCTION Thank you for purchasing this CLARKE Hammer Drill. Before attempting to use the machine, 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.
GENERAL SAFETY RULES WORK AREA 1. Keep the work area clean and well lit. Cluttered and dark areas invite accidents. 2. Do not operate power tools in explosive atmospheres such as in the presence of flammable liquids, gasses or dust. Power tools create sparks which may ignite dust or fumes.
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5. Dress properly. Do not wear loose clothing or jewellery which may get caught in moving parts. Wear protective hair covering to contain long hair. For best footing, wear rubber soled footwear. Keep floor clear of oil, scrap wood, etc. 6.
2. Using the correct bit. Use the appropriate drill bit for the material being drilled. Different bits are available from your Clarke dealer. 3. Use of the mains cable. Keep the mains cable well away from the drill and ensure an adequate electrical supply is close at hand so that the operation is not restricted by the length of the cable.
ELECTRICAL CONNECTIONS WARNING! Read these electrical safety instructions thoroughly before connecting the product to the mains supply. Before switching the product on, make sure that the voltage of your electric- ity supply is the same as that indicated on the rating plate. This product is designed to operate on 230VAC 50Hz.
OVERVIEW The CLARKE CHD850 is a variable-speed drill for DIY use. It is equipped with a variable speed controller and hammer operation and has a lock-on button for continuous operation. The drill is supplied with a depth stop rod and auxiliary handle.
OPERATION IMPORTANT: To avoid accidental starting, ensure the drill is switched OFF before plugging in to the mains. To do this, briefly pull the switch, and release to ensure the trigger lock is not set in the ‘lock’ position. INSERTING A DRILL BIT 1.
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FORWARD / REVERSE SELECTION 1. Set the forward/reverse selector switch to the position marked ‘R’ for normal ‘Right Hand’ rotation for drilling holes. 2. Set the forward/reverse selector switch to the position marked ‘L’ for ‘Left Hand’ rotation to reverse the drill out of the workpiece.
• All bearings etc, in this tool are lubricated with a sufficient amount of high grade lubricant for the tools lifetime under normal operating conditions, therefore no further lubrication is necessary. • Refer to your CLARKE dealer if internal maintenance is required. Parts & Service: 020 8988 7400/E-mail:Parts@clarkeinternational.com or Service@clarkeinternational.com...
& 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. Parts & Service: 020 8988 7400/E-mail:Parts@clarkeinternational.com or Service@clarkeinternational.com...
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 transmit- ted to the operator via the handle, or hand used to steady the tool. Vibration from about 2 to 1500 Hertz is potentially damaging and is most hazardous in the range from about 5 to 20 Hertz.
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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.
ACCESSORIES & CONSUMABLE SPARES An extensive selection of accessories including Drill Bit Sets, Socket & Bit Sets and Drill Bit Sharpeners are available from your CLARKE dealer. The following drill bit sets are suggested for use with your hammer drill.
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