1800204 CLARKE | Alldatasheet
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ORIGINAL INSTRUCTIONS GC06/19 iss 3 TORQUE WRENCH MODEL NO: CHT204 PART NO: 1800204
Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com INTRODUCTION Thank you for purchasing this CLARKE ⅜” square drive Torque Wrench. This torque wrench is designed to tighten nuts with precision. It should NOT be used for UNDOING nuts, as severe damage could occur. With correct use, this tool will produce an accuracy of plus or minus 4%. You can hear and feel when the desired torque setting has been reached. With careful and considerate use, the wrench will give years of reliable service 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 its intended purpose. 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. USING YOUR TORQUE WRENCH TORQUE SETTING ADJUSTMENT The main body is marked in both Inch Pounds (in lbs), and Metre Kilograms (Mkg). The barrel is marked with 20 graduations, one graduation = 12 in lbs or 0.14 Mkg. Example: To set the torque to 492 in lbs 1. Ensure the lock nut (1) is loosened, by turning it anti-clockwise. Turn the knurled handle until the zero mark on the chamfered scale is in line with the next lowest graduation on the linear scale. In this case it would be 480. (only one of the zero marks will line up correctly) 2. As the desired setting is higher th an 480, continue to turn the knurled handle, one more graduations. (one graduation equals12 in lbs). Therefore 480+12 = 492 in lbs. 3. Tighten the lock nut to secure the setting.
Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com METHOD OF USE NOTE: Preferably, DO NOT use knuckle or universal joints, as these could result in incorrect torque settings. 1. Place the square drive on to the socket or extension bar, perpendicular to the nut/bolt to be tightened. 2. Gripping the knurled handle with the right hand, whilst steadying the 1/2” square drive end with the left, gently but firmly, pull the handle (i.e. in a clockwise direction) until a click is heard, and a slight ‘break’ in the handle is felt. DO NOT turn any further.
- Do not jerk the torque wrench in any way to tighten a nut. Apply even pressure throughout the operation. Release the wrench immediately the click is heard/felt. It should be noted that the ‘click’ becomes weaker with the lower torque settings. ACCESSORIES 1/2" Square Drive, x 5" Extension bar 1/2" x 3/8" Square Drive adaptor Carrying Case MAINTENANCE Each torque wrench has been lubricated before leaving the factory. If the wrench has not been used for some time, operate it several times allowing the lubricant to re-coat the internal working parts. After use, keep adjustment at lowest torque setting. Do not turn handle below lowest torque setting. Clean wrench by wiping. Never im merse in any type of cleaning fluid. The wrench may occasionally requir e servicing/recalibration in order to ensure accurate readings, in which case, contact your CLARKE dealer. CONVERSION FORMULAE 1kg cm= 13.887 oz/in 1Nm = 14.161oz/in 1kg cm= 0.08677 lbf /in 1Nm = 8.8507 lbf/in 1kg/m = 7.233 lbf/ft 1Nm = 0.73756 lb/ft 1kg cm= 0.098 N/m 1kgm = 9.80665 N/m
Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com CONVERSION TABLES Pound/ Feet (lbf.ft) Kilogram Metres kg/m Newton Metres Nm Newton Metres Nm Pound/ Foot (lbf.ft) Kilogram Metres (kg/m) Kilogram Metres kg/m Newton Metres Nm Pounds /Feet (lbf.ft)