Correct use of hydraulic torque wrench

What should be paid attention to when using Hydraulic Torque Wrench? Let's take a look at it together. It may be helpful to you. More knowledge about Hydraulic torque wrench is waiting for you to learn so that you can use it more correctly.

What do you need to pay attention to when using a hydraulic torque wrench? The following four points should be paid attention to when using hydraulic torque wrench.

1. Hydraulic torque wrench should be gentle and even in use. Never use short, impulsive forces to pull, as a sudden pull produces an impulse that the screw or bolt may have twisted too far the moment it stops.

2. Contamination of the hydraulic torque wrench will prevent accurate torque values from being obtained. If parts and screw holes are contaminated, the correct torque values will not be possible.

3. Friction of hydraulic torque wrench is a common phenomenon, but it has both advantages and disadvantages. The good thing is to keep the parts together; The bad news is that when tightening, it can lead to incorrect results. A mechanic uses only 10%-20% of the tightening force to tighten the joint by hand, whereas in many cases 40%-50% of the torque is used to overcome friction between the head of the bolt and the part, and additional friction is generated along the threaded surface of the spouse bolt and hole. All these friction factors and others should be taken into account when tightening the bolts.

4. When tightening nuts or bolts with damaged or obstructed threads by a hydraulic torque wrench, pay attention to how much additional torque is required to pass through the damaged area and add this additional torque to the recommended torque value.