(preset) torque wrench

　　Introduction of way to use

　　1、Preset the torque according to the torque value required for the work.

　　2、When predicting the torque, pull down the positioning sleeve on the upper part of the handle, hold the casing with

　　one hand, turn the handle to the required torque value with the other hand, loosen the positioning sleeve, reset

　　the positioning sleeve, and lock the torque value.

　　3、Install a suitable sleeve on the square tenon of the wrench, and cover the fastener, slowly apply force on the

　　handle, and remove the force when you hear a "da" (the preset torque value has been reached).

　　4、When using a larger torque value, we can add an extension rod to save effort in operation, and we can remove

　　the force when we hear a "da".

　　5、When using a torque wrench for the first time or when it has not been used for a long time, it is necessary to operate

　　it with medium or high torque for 5-6 times to allow the wrench components to be specially lubricated. After use,

　　please return the torque value of the wrench to the minimum value.

　　Note

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　　1、Do not use too much force when using it. Do not continue to add force after reaching the★Accuracy level: Grade 3

　　preset torque. It is prohibited to use it beyond the range. After the "da" sound is heard, ★Error range: +3%

　　the force should be released in time.

　　★Casing: Made of high-quality alloy steel

　　2、The wrench should be handled with care. It cannot replace the hammer for hitting.

　　★Components: Made of special alloy steel

　　Do not disassemble it at will to avoid affecting the accuracy of use.

　　★Accurate display and easy counting

　　3、Store it in a dry place to avoid rusting over time.

　　★Bidirectional ratchet head, simple operation

　　4、It should be calibrated regularly.

　　5、For large-size torque wrenches, a force rod is used. When operating, it should be

　　★High accuracy and good stability

　　properly connected to the wrench handle before use.

　　(Applicable to torque measurement of

　　fasteners with high accuracy requirements)