How to Use a Torque Wrench | Accurate Tightening Control

Hello, everyone.

This is Enta.

Oil Change

I changed the oil!

Before I knew it, I’d driven 7,000 km—and I have to admit, that’s a bit much, lol.

That said, there are plenty of other models recommended by the manufacturer, so it’s not a problem, but since I want to keep driving this car for a long time, regular maintenance is essential.

It's important to take care of both your mind and body!

Oh, and speaking of me, I quit working on Sundays lol

Announcement: I'm done being a workaholic! lol

The blog is running as usual.

Workaholic


But that's beside the point.

How to Use a Torque Wrench

We don't really use it in our day-to-day slope work, but we do use it occasionally for rebar installation.

Torque Wrench
http://snapon.co.jp/comm/products/atech.html

The reason I use it occasionally is when the calculation method is based on the sum-of-the-parts approach rather than market unit prices.

With the stacking method, torque control becomes an issue.

Honestly, I don't really care about that kind of thing, but since it keeps popping up, I have no choice but to deal with it (lol)

Even if you manage the torque so that it doesn't come loose, the fastening might still be too loose in some cases, so it's about time to go with Pilen!

I wish they'd put that in the spec sheet... lol

OK

Do you know how to use a torque wrench when torque control is required?

It seems that some of the newer torque wrenches beep to let you know when they reach the set torque!

However, the torque wrenches we use look something like this.

Rock Bolt Torque Wrench

Put all your strength into it and tighten it by hand to the specified torque (lol)

Rock Bolt Installation: Torque Wrench Management

It can even pull off the crazy trick of taking a photo at a specified torque, but that’s a real pain, isn’t it? lol

It's kind of hard to take pictures, isn't it? Even the craftsman's hands are shaking lol.

After all, it has to hold the specified load until the photo is taken.

 

Well, that can't be helped, but the question is where to apply force when using a torque wrench.

For now, just tighten it loosely by hand.

You shouldn't use something like a torque wrench here, because it could cause the torque to exceed the specified limit.

Please clap your hands to wrap things up.

Next, use a torque wrench to tighten the bolts to the specified torque.

Just slowly apply the specified load, and as long as the nut turns slowly and tightens, you're good to go.

What if, here...If the nut doesn't move but the torque reading is displayed, you've overtightened it.That's it.

It is normal for the nut to move and tighten.That's it.

 

Finally, since it’s best to tighten the bolt with a wrench just enough so it doesn’t come loose, please tighten it securely.

It works even better if you incorporate caulking, as I mentioned in a previous post.

 

See you later.

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