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Hi, Today we talk about how to use a click torque wrench. A click torque wrench is an essential tool for professionals. It is a very important tool for anyone who does not want to exert excessive pressure on a nut or screw. It is a quick method for screwing and unscrewing bolts and nuts. Click torque wrench is not at all difficult to use.
We will see, during this short guide how to use the click torque wrench. This type of key is useful because it can also be used in very narrow areas. Click torque wrench are equipped with a special ratchet, to manage the fixing of bolts in situations of reduced space.
The click torque wrench is used for fastening and correct tightening of nuts, screws, bolts and anything else. That needs a specific amount of torque that is calibrated so as not to exceed a threshold.
A tightening carried out with tools without torque control can cause damage to the thread. If bolts are tightened without force control with tools sealing problems can occur to which the bolts are subjected during normal use.
If it is the first time, you use a torque wrench you have to load it at the maximum. Then you have to shoot it a dozen times. In this way, you will allow the internal components to lubricate properly.
Sometimes it is necessary of some certain manual skills. Apparently, it is very simple procedures, like the screwing of a simple screw. Precisely for a procedure of this kind, we can use a very ingenious tool.
Now let us see how to use it in complete efficiency. There is no single torque wrench for all types of bolts, but there are various models and variants.
First, you have to choose the tightening pressure. In fact, each key is equipped with an adjustable handle having a graduated scale in Newton or kilograms.
Frame Size For Using Click Torque Wrench
If you wanted to learn how to use a click torque wrench then you have to choose the most suitable size of the male frame on the head for the placing of Allen, hexagonal bush, torx, xzn and so on.
The smaller graft starts from a quarter of an inch serves to unscrew the small bolts.
That goes from the M4 to the M8. Then there is the 3/8 inch one that is suitable for unscrewing the medium screws from M6 to M10.
Finally, we have the one half inch one that is appropriate for the large M8 to M20 screws.
Adjust The Torque
The next step will be to determine the tightening torque required by the component to be fitted. By now, all the components, for example in racing bikes, indicate the tightening value to be impressed.
In the case of components tightening value will be indicated in Nm. Generally, the indication of the tightening value reported by the component will be Standard Torque 2 Nm, Max Torque 5 Nm or Do not torque over 15 Nm, or a similar writing. The indicated value will be the one that will be set on the click torque wrench.
To adjust the tightening torque, hold the bottom of the instrument and turn the knob to obtain the desired result.
Therefore, the torque wrench is used in this way. Start by unlocking the knob of the latter. Then adjust the calibration to the preset Nm values.
Lock the tool knob, insert the appropriate screw fitting on the control panel and insert the bushing on the screw head until it clicks into place. At this point, we can try to use the torque wrench. Then roll up the sleeves and let us get to work immediately.
Specifically, each key has a special system for hooking and anchoring the bush on the pawl. The cheaper versions work with a simple pressure of the bush on the pawl. While versions are more complete, require the presence of a button that frees a split pin.
Other torque wrenches have a conical pawl, which then engages with the compass. It is not possible to describe in a standard way that the compass is mounted on all the torque wrenches. You will have to rely on the manual that you find attached to the torque wrench that you purchased.
To adjust the value of the tightening of a torque wrench, you must turn the knob of the same until you place the vernier of the graduated scale on the notch of the required torque. That is depending on what is indicated in the piece to be tightened.
At this point, all you have to do is screw the screws or the data, insert the torque wrench bushing on the screw head and tighten, turning the key clockwise. Rarely, in fact, it will happen to find particular English threads that are screwed in an anti-clockwise direction.
The click torque wrench allows you not to be afraid as the force you are giving for movement. When the mechanical moment reaches, the key has been calibrated.
The gears present in the wrench loosen the grip on the spring contained in the wrench head and the key is triggered, thus carrying out an empty stroke.
Once you reach the signal, be it a jerk, a sound or the dial hand, you will not have to tighten any further. It turns out to be good then to go to a phase of control of all the screws.
The final phase that allows you to be sure you have done everything correctly. This check must be carried out periodically.
When normal maintenance is carried out, with time the screws and bolts tend to loosen, the screw control allows intervening and restoring the optimal state.
How To Use The Compasses For Using Click Torque Wrench
Ratchet has a reversible mechanism. That allows you to turn an object even in the absence of space, simply re positioning the key thanks to a free trigger.
Then there is the fixed key, which is very similar to a single-block socket wrench. The third instrument is the T-key, which is a sort of extractable steel bar.
You could then opt for a screwdriver handle, similar to the homonymous tool, but with a square attack.
Let's see a youtube video about how to use a click torque wrench from fnaguitarplayer9 chanel.
Finally, as we said at the beginning, the tension of the spring must be discharged before putting the torque wrench back on. Taking the spring to zero it is very important to make sure that this does not lose the calibration. We can say that a socket wrench looks like a pipe, short enough, with a handle, which can also be removed, and with a hexagonal hole.