How to use preset torque wrench and precautions

Many new users of preset torque wrenches are not likely to operate when they use the wrench for the first time. So today Shanghai Hardworking Xiaobian talks about the use of preset torque wrenches and what to watch out for during use.

How to use the preset torque wrench:

1. Determine the preset torque value according to the required torque value of the workpiece.

2. When presetting the torque value, pull down the locking ring on the handle of the spanner and turn the handle at the same time to adjust the main scale line and differential scale line value of the scale to the required torque value. After adjustment, loosen the lock ring and the handle locks automatically.

3. Install the corresponding size sleeve on the spanner wrench and cover the fasteners, then slowly apply force on the handle. When applying external force, it must be in the direction of the indicated arrow. When it is tightened to the click of a signal (the preset torque value has been reached), stop the boost. One job is completed.

4. When a large-size torque wrench is used, it can be attached to a long sleeve for easy operation.

5. If you do not use it for a long time, adjust the ruler to retreat to the minimum torque value. It helps to ensure the accuracy of the torque.

Precautions for using torque wrench:

(1) Do not use a preset torque wrench to remove bolts or nuts.

(2) It is forbidden to add the extension arm to the end of the preset torque wrench to prevent damage to the preset torque wrench.

(3) Adjust the required torque as needed, and confirm that the adjustment mechanism is in the locked state before use.

(4) When using the preset torque wrench, it should be loaded slowly and balancedly, and must not be yanked or slammed to avoid overload, resulting in inaccurate output torque. After reaching preset torque, stop

Stop loading.

(5) When the preset torque wrench is used, it should be adjusted to the minimum torque to fully relax the force measuring spring to prolong its life.

(6) Moisture intrusion into the preset torque wrench should be avoided to prevent parts from corrosion.

(7) The opening size of the selected preset torque wrench must be consistent with the size of the bolt or nut. The wrench opening is too large to slip off and damage the hexagonal screw. All kinds of wrenches are selected.

In principle, socket wrenches are generally preferred, followed by a spanner wrench, again an open-end wrench, and finally an adjustable wrench.

(8) In order to prevent damage and slippage of the wrench, the pulling force should be applied to the thicker side of the opening. This should be especially taken care of by the larger movable wrench to prevent the opening from appearing."

Eight-shaped, damaged nuts and wrenches.

(9) The preset torque wrench is designed according to the strength of the human hand. When a tight screw is encountered, it cannot be hit with a hammer. Except for socket wrenches, other wrenches cannot be set.

Struts to prevent damage to wrenches or threaded connections

(10) When using the preset torque wrench, when you hear a “click” sound, this is the most appropriate note: 1. Purpose: The preset torque wrench is a tool for rotating bolts or nuts. 2. Usage: The tension force should be used when the preset torque wrench is turned. It is very dangerous to push the wrench. 3. The torque wrench can be used to loosen the bolts. Before bolts are tightened, the bolts should be cleaned and lubricated. 4. Use a preset torque wrench to tighten the bolts evenly. Do not use impact force.

The above is the description of Xiao Bian. Shanghai Shigan Industrial Co., Ltd. is also a company specializing in the production and sales of preset torque wrenches. If you need a friend, you are welcome to inquire!

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