A torque wrench is a special tool to operate the torque with fastener the nuts or bolts. It is used where to tighten or loosen the bolts or screws. The torque wrench increases the rational force to tighten a bolt or screw or nut with more accuracy than a standard wrench. The torque wrench is designed by Conrad Bahr in 1918. However, it allows the measured pressure, better safety, prevent over-tightening and damaging and accuracy.
Table of Contents
- 1 Types of Torque Wrench
- 2 How to use a beam torque wrench?
- 3 How to use a Click torque wrench?
- 4 How to use a hydraulic torque wrench?
- 5 How to use a digital electronic torque wrench?
- 6 Conclusion
Types of Torque Wrench
There are six types of torque wrench-
1. Beam Torque Wrench
The beam wrench I the simple and basic type of torque wrench where the head and the handle of the wrench are separated by a lever arm. The lever arm has some elasticity allowing the wrench to bend the desired level of pressure. When the beam wrench is not used, the indicator remains parallel with the lever arm. While the torque is used, the scale gives a reading which indicates the weight of the product. The beam wrench is the lowest cost torque wrench among the other types of a torque wrench.
2. Click adjustabe Torque Wrench
The Click torque wrench is one kind of socket wrench where it can operate to preset the torque level with the clutch mechanism. Actually, it presets the toque level because of how much weight to be needed. It is designed with preventing overreachig overstretching to the actual point. When you get the exact or maximum torque level, you hear or feel the click sound from the click torque wrench.
3. Hydraulic Torque Wrench
The hydraulic torque is designed for applying the torque speed. Generally, it is used for automobiles work. When you applied to pressure on nuts or bolts head, the pre-calibrated torque can work for tightening the nut. It works for high force vehicles.
4. Digital Electronic Torque Wrench
The electric torque wrench is a programmable electric device that can determine the accurate torque level. You can save the reading to the display. You can save the reading with the attached memory stack and access to your computer. A stain gauge sends a signal to the transducer which you can see the reading on the LED display.
5. Plumber Wrench (No Hub)
The plumber’s wrench is a T-shaped wrench which is being used with couplings on the soil pipes. It has pre-calibrated to slip whether the torque strength is reached to a sufficient level.
6. Deflecting Beam Wrench
The deflecting beam wrench is designed for the coil spring method. It deals the high accuracy and safety when it deals with a high level of torque pressure. It has an audio effect when the torque is applied it creates an audio effect to the ear for high accuracy.
How to use a beam torque wrench?
A beam torque wrench is an easily operated tool which is safer to fasten the nuts and bolts. Basically, it is used in the automobile operation. It ensures how much pressure do you need to tighten the bolts or nuts. Do you know how much torque needed to tighten the nuts? You can easily identify from the manufacturer manual. Do you know how to use a beam torque wrench? You can make it. You follow the easy five steps to use the beam type torque wrench.
Step-1: Attach the socket to the nuts or bolts
At first, you should attach the socket to the socket to the nuts or bolts. You can know about the bolt or nut’s size. You can set the wrench that what size of wrench do you need. How to choose the right size of torque wrench? I give a chart below for bolts vs wrench. If you need a smaller fastener, socket with a 3/8 inch drive is very common. When you use a larger socket, you can use the ½ inch drive.
Step-2: Attach the socket with the torque
Now you should attach the socket with your torque. You can see the square drive on one end. The drive is the square circular peg and you set the wrench with the socket. Then it should be workable or tighten the nuts or bolts. You can hold the wrench on the end of the wrench. But you hold the wrench that the hand does not touch the beam.
Step-3: Apply force to pull the tool with clockwise
You can apply the force to pull the tool with clockwise. When you force the tool clockwise, you can see the handle bend slightly. The bean may change the location from zero to 10, 20, 30 till 100. It depends on your pressure. Most of the torque measurement is foot-pounds in the United States. Moreover, you force more, the beam goes up.
Step-4: Continue the tightening till the specified torque level
You should continue the force until the beam goes to the required number. Until you can fastener to the wrench, the beam goes evenly to see the wrench.
Step-5: Release the pressure from the torque
When the specified level of torque gained, you should release the pressure from thy torque. You do not need pressure from the specified level of torque. Then you remove the socket and the wrench. When you store the wrench, you may keep oil upon the wrench so that it keeps better for the next work.
How to use a Click torque wrench?
A click torque wrench is generally used in automobiles and uses for tightening the nuts and bolts. It ends tightening the bolt with specific torque ends with a click sound. Be careful, what type of click torque wrench should you buy? There is four option like foot-pounds, inch-pounds, newton meter, and kilogram-meter. Generally, people bought foots pounds and inch pounds. If you have other types of a click torque wrench. It should be a convertible.
1-foot pounds =12-inch pounds
1 foot pounds = 1.3558 Nm
1 Newton Meter = 0.7375 ft-lbs.
I inch pounds = 0.112 Nm
Step-1: Learn about the torque wrench set
When you want to use the torque wrench, you must read the manufacturer installation book. You can see three part of click torque wrench like socket extension length, torque extension length and handle extension length. You must monitor the movable handle to continue to adjust the torque level. You should set the torque with zero to the specific number of torque. You should not set over limit torque. It damages your bolts.
Step-2: Specify the torque level and attach the socket to the torque wrench
You should specify the torque level. It is important for perfect tightening to the bolt. You roll the handle to set the torque. If your torque level is 100, you should specify to 100 with zero. Moreover, it may be 105, you just go to 100 and another five-point ahead. Then you should attach the socket to the torque wrench. You make sure that the socket securely set with the thread. You do not need to get the hand tight.
Step-3: Tightening Fastener
When you attach the socket head over the fastener head. You are ready to tighten the fastener. You should use the click wrench slowly and carefully rather than quickly. You need to pull smoothly. While the screw or blot becomes tighter, you should turn slowly.
Step-4: Tighten in sequence
The sequence of tightening bolt is important. You can check the direction from the manufacturer manual. If you start the tightening the bolts in a circular way, you can affect the part to or damage. You must try to tightening in a criss-cross pattern. It keeps the balance of your car tire.
Step-5: Click sound and release
When you keep tightening the bolts, you may hear a click sound to your ear. When you hear the click sound, you just atop the tightening because it already goes to the required torque. You also feel the slight move from the wrench. Now you should release the bolt and go for another bolt. You should clean the wrench for the next use.
How to use a hydraulic torque wrench?
A hydraulic torque wrench is an industrial power tool that is designed to exert torque with proper tightening or loosening to a large bolt or screw. It comes for the large industrial bolt. It has three-part like a hose, a power pack, and a hydraulic torque wrench. The hydraulic torque wrench was invented by George A. Studevant in 1960. There are two types of hydraulic torque wrench which names are square drive and low profile.
Step-1: Assemble the three parts
The hydraulic torque wrench comes with three-part like a hose, a power pack, and a hydraulic torque wrench. You need to sequencing to attach the components. At first, you attach the hose to the power pack and then you attach this part with the hydraulic torque wrench. Fro safety issue, you should set the fittings with a solid connection between the three parts.
Step-2: Set the torque level
The hydraulic torque wrench has adjustable settings that you can set the required torque level. You can check the manufacturer manual which allows how much torque level needed. Be careful about the overtightening which can damage or break down the bolt. When it goes to the specific torque, it does not go up. If you don’t know the torque level, you should start with the lowest torque level and then keep continue.
Step-3: Using the hydraulic torque wrench
At first, you should hydraulic torque wrench with a nut. Every hydraulic torque wrench has a large hole for adjusting with the nut. Now you can start the switch to operate the wrench set. You should monitor the pressure. Once it goes to the required torque level, it will automatically stop to move the bolt. You just remove the wrench and can start the nest bolt.
How to use a digital electronic torque wrench?
Step-1: Set the digital torque wrench
While you get the digital torque wrench with four battery. You should open the screw from the wrench handle where the battery box includes. Now you can set the battery on the battery box and tighten the screw.
Step-2: Set the torque level and tolerance level
When you set the wrench with filling the battery, you are now able to use the digital torque wrench. At first, you set the torque level. You just click on the “set” button and click the up button to get a set required torque level. Now you should set the tolerance level, just click on the percentage button. Generally, you can set a 10% tolerance that can signal to you in red or green.
Step-3: Using the digital torque wrench
You set the digital torque wrench with bolt and you should pull the wrench with clockwise. You see the torque level on the display. When you get the required torque level, you see the signal green button. When it is shown the red signal, you should stop the wrench and go for the next bolt.
You read “how to use the beam, click, hydraulic and digital torque wrench. I should try to give more information about using the torque wrench. If you are in a project with the torque wrench, you can try to operate with this information. If you have any questions about the uses of a torque wrench, please comment and you can also engage with us.