CHT204

3/8” SQUARE DRIVE TORQUE WRENCH MODEL: CHT204 0504 Thank you for purchasing this CLARKE 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 faults in manufacture for 12 months from purchase date. Keep your receipt as proof of purchase. This guarantee is invalid if the product has been abused or tampered with in any way, or not used for the purpose for which it is intended. The reason for return must be clearly stated. This guarantee does not affect your statutory rights. OPERATION A. 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 is loosened, by turning it anti-clockwise. Turn the knurled handle until one of the the zero marks on the chamfered scale is exactly in line with the next lowest graduation on the linear scale on the main body - in this case it would be 480. (only one of the zero marks will line up correctly) 2. As the desired setting is higher than 480, continue to turn the knurled handle, one more graduations. (one graduation equals12 in lbs). Therefore 480+12=492 in lbs 3. Finally, tighten lock nut to secure the setting. B. 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 3/8” 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. IMPORTANT! DO NOT turn any further. IMPORTANT 1. Do not jerk the torque wrench in any way to tighten a nut. Apply even pressure throughout the operation. 2. Release the wrench immmediately the click is heard/felt. 3. It should be noted that the ‘click’ becomes weaker with the lower torque settings. ACCESSORIES 1. 2. 3. 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 torque 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 immerse in any type of cleaning fluid. • The wrench may occasionally require servicing/recalibration in order to ensure accurate readings, in which case, contact your CLARKE dealer CONVERSION TABLES Foot Kilogram Newton Pounds Metres Metres (ft.lbf) kgm Nm 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 0.69 1.38 2.07 2.76 3.46 4.15 4.84 5.53 6.22 6.91 7.60 8.29 8.98 9.67 10.37 11.06 11.75 12.44 13.13 13.82 14.51 15.20 15.89 16.58 17.28 17.97 18.66 19.35 20.04 20.73 21.42 22.11 6.78 13.56 20.34 27.12 33.90 40.68 47.46 54.24 61.02 67.80 74.58 81.36 88.14 94.92 101.70 108.48 115.26 122.04 128.82 135.60 142.38 149.16 155.94 162.72 169.50 176.28 183.06 189.84 196.62 203.40 210.18 216.96 Newton Metres Nm 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 Foot Kilogram Kilogram Newton Pounds Metres Metres Metres (ft.lbf) kgm kgm Nm 7.38 14.75 22.13 29.50 36.88 44.26 51.63 59.01 66.38 73.76 81.14 88.51 95.89 103.26 110.64 118.02 125.39 132.77 140.14 147.52 154.90 162.27 169.65 177.02 184.40 191.78 199.15 206.53 213.91 221.29 228.67 236.05 1.02 2.04 3.06 4.08 5.10 6.12 7.14 8.16 9.18 10.20 11.22 12.24 13.26 14.28 15.30 16.32 17.34 18.36 19.38 20.40 21.42 22.44 23.46 24.48 25.50 26.52 27.54 28.56 29.58 30.60 31.62 32.64 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 9.81 19.61 29.42 39.23 49.04 58.84 68.65 78.46 88.26 98.07 107.88 117.68 127.49 137.30 147.11 156.91 166.72 176.53 186.33 196.14 205.95 215.75 225.37 235.37 245.18 254.98 264.79 274.60 284.41 294.22 304.03 313.84 Foot Pounds (ft.lbf) 7.23 14.47 21.70 28.93 36.17 43.40 50.63 47.87 65.10 72.33 79.57 86.80 94.03 101.27 108.50 115.74 122.97 130.20 137.43 144.67 151.90 159.13 166.37 173.60 180.84 188.08 195.30 202.54 209.77 217.00 224.23 231.46 CONVERSION DATA 1kg cm 1kg cm 1kgm 1kg cm = = = = 13.887in oz 0.08677in lbf 7.233ft lbf 0.098Nm 1dNm 1Nm 1Nm 1kg cm Clarke International, Hemnall St., Epping, Essex CM16 4LG: = = = = 14.161in oz 8.8507in lbf 0.73756 ft lbf 9.80665 Nm Service Tel: 020 8988 7400