A power supply connected to the first host of the three-pin plug into the appropriate socket on the control device, then plug the power cord on the control device connected to the grid. Green / yellow color wire is the ground wire. After working in the opposite direction removal. Second, twist a bolt tightening operation, mounted on brackets reaction force, and tighten the screws. Host Shandong start torsional shear wrench, the square head pin holes and the corresponding reaction force bracket holes, then load wrench socket, plug pins and fixed with a rubber ring. 2, the control knob to the desired torque meter torque value, will host reverse switch to forward position, the socket wrench set in the hexagonal screw connector. 3, press the power switch, wrenches start. When the reaction force by prison stent arm pivot (fulcrum may be a bolt or other neighboring do fulcrum position) begin to tighten the bolts. When the bolt torque reaches a predetermined torque wrench automatically stop tightening is complete, release the power switch, the work carried out under a fastening bolt. 4, after the wrench automatically stop by elastic deformation force reaction force bracket torsional shear wrench, so that the bracket arm automatically from the fulcrum, remove the wrench. When the arm can not be separated as a fulcrum, can reverse toggle switch, jog power switch, you can remove the wrench. Third, the removal operation in Remove the bolt wrench bolts (reverse), its method of operation and the same tightening operation, but the reverse switch to the reverse position, remove the bolts loose defense on the power switch. Fourth, select and adjust a torque, the user may be in the range of 100 --- 3500Nm of arbitrarily selecting the appropriate size of the electric wrench. 2, there is a control instrument panel "torque adjustment" knob, engraved with 0-100 scale value to adjust torque. 3, the adjustment method: the factory with a torque test data card, the user calibration for reference, the user can select a torque value based on the scale required, in accordance with the method of operation tighten the bolts and tighten the bolts. Dynamometer with a wrench or other force measurement instruments measure the actual bolt torque value, if higher torque values, the scale adjustment knob to low; if the torque value is low, then the high scale value adjustment can be repeated several times to reach exact desired torque value. 1. electric torque wrench calibration set point is one of the largest strictly necessary to simulate actual working conditions calibration, from bolts, wrenches to temperature and humidity into concrete steps. General calibration averaged five bolts, the bolts can be calibrated in order to save finish marked the beginning of the final twist twist wrench wrench wrench tighten the bolt end calibration attention should simulate actual conditions tighten and then marked the beginning of the first hit. 2. The reason for the early twist, mainly to allow the plate stack of tight, reducing more than one gusset plate bolts tightened because the order of causes axial force influence each other, general studies suggest that, to ensure the board stack of tight situations, early twist the smaller the better, since the beginning of twist is too large, especially more than 70%, does affect the accuracy of the final twist. Construction of high-strength bolts America is probably the beginning of the final twist twist torque 15% to 20%, we are 50% of the state, mainly because in the process of installing the steel structure, part of the rod into the cantilever state, but also by the force of the gusset plate most cost-effective torsional shear wrench, tighten the 50% early progress of the installation can guarantee the supply of torsional shear wrench, saving bolt (US this case need to use technology bolts), but also to ensure the accuracy of the final twist. Less affected, but the price is expensive. Most cost-effective torsional shear wrench, torsional shear wrench, in general science and technology provided by S & P Technology Co., Ltd. Jinan. Jinan Cape Technology Co. (www.jnddbs.cn) strong, credible, and other industries in other Jinan accumulated a large number of loyal customers. The company better work attitude and continuous improvement of innovative ideas in general science and technology will lead into the brilliant and you work for a better future!