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Auto repair wrench tools selection and precautions.Pneumatic impact wrench
source:Industry News release time:2022-07-05 Article author:yu Popular:Air band saw
1. According to the required constant force value, select the corresponding constant torque wrench that has passed the calibration. It is not allowed to use the constant torque wrench that has not been calibrated.
2. Twist the wrench with a balanced and slow force, do not twist it sharply, hold the middle point of the handle of the fixed torque wrench with your hand, and pull the handle perpendicular to the center line of the wrench until the required torque is reached. .
3. Do not apply a torque greater than the rated value of the constant torque wrench. It is not allowed to use the constant torque wrench to remove the bolts or nuts. The constant torque wrench can only be rotated clockwise.
4. When tightening the bolt with a constant torque wrench, the adapter should not be used as much as possible. When it is absolutely necessary, the following requirements must be observed: when the adapter has various shapes, it can be selected reasonably; in order to reduce the tightening torque error, turn the The length of the adapter should be less than the length of the fixed torque wrench; when connecting the adapter, its center line should be in a straight line with the center line of the wrench. If necessary, an adapter with an axis offset can also be used, but the maximum angle is not more than 15°.
5. It is not allowed to use the constant torque wrench as an ordinary wrench, such as to loosen nuts or bolts.
6. The right torque fixed torque wrench cannot be rotated to the left, and the left torque fixed torque wrench cannot be rotated to the right.
7. Do not use chrome-plated constant torque wrench and adapter wrench to contact titanium and alloy bolts or product structures.
8. The torque applied by the constant torque wrench is not allowed to exceed the rated torque value of the constant torque wrench.
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