What is torque multiplier

[Deafautotech]

What it is for? Use 1/2 drive torque wrench to tight up 300 or 400 feet lbs or it is for break loose or what?

Ford f150 have front brake rotor with bearings inside and has to torque 300 ft lbs. But I only has 250 ft lbs and I had to Borrow my friend at work that has 800 dollars torque wrench that can go to 600 ft lbs...

 

[Deafautotech]

My question is how is work if I need torque 300 feet lbs but my torque wrench only up to 250 ft lbs.

 

[t100]

dude, grab this and run with it.

http://indianapolis.craigslist.org/tls/2032332363.html

as for your question, take a look at this vid

normally you need to use 1/2" drive torque wrench and 3/4" drive sockets.

 

[gordsgarage]

The multiplier is geared. For a example a 2:1 torque multiplier would require you to set your torque wrench to 150 ft/lbs in order to reach the required 300 ft/lbs of torque.

Gord

 

[Deafautotech]

dude, grab this and run with it.

http://indianapolis.craigslist.org/tls/2032332363.html

as for your question, take a look at this vid

normally you need to use 1/2" drive torque wrench and 3/4" drive sockets.

I has contact him a discuss about how and where to meet soon as tomorrow...

 

[Deafautotech]

The multiplier is geared. For a example a 2:1 torque multiplier would require you to set your torque wrench to 150 ft/lbs in order to reach the required 300 ft/lbs of torque.

Gord

Thank you! That would help me as I can't afford to buy big torque wrench and don't use it much.. So I would like use torque multiplier...

 

[Charles (in GA)]

It has a set of planetary reduction gears, ratios like 2:1 or 4:1, and the housing has a handle on it, which you hold or wedge on the floor or auto structure (depending on what you happen to be using it for). With a 2:1, for every turn of the drive, you get a half turn of the output (socket end) and the torque is doubled. If you have a 4:1, then it takes four turns of the input to get one turn on the output and the torque is times four. Pull 100 ft/lb and it puts out 400. But, you gotta be able to either hold or brace the handle of the multiplier. "for every action, there is an opposite and equal reaction"

That multiplier on CL is a bargain. Add a long handle to it and you are all set. Just do the math right so you don't damage something. Just take the torque the manual calls out, and divide by 3.3 to get the torque you need to set your torque wrench to. In your case, the 300 ft/lb you needed divided by 3.3 equals 90.9 ft/lbs you would set your torque wrench to.

Charles

 

[t100]

different torque multipliers have different multiply ratios, so check it first.

 

[Deafautotech]

I am understand as I am wait to get email back from seller about it..

 

[Charles (in GA)]

I think he explained one time, way back, that he learned American Sign Language first, and thus writes/composes that way, rather than in pure English.

Charles

 

[Deafautotech]

well i had use my iphone to talk about it as i had left my laptop at my work. sorry about my english language...


anyway, do i need get a handle for armstrong torque multiplier? i am going to meet the seller tomorrow afternoon. he said he bought it but had not use it... it has storage case to keep it inside.

 

[Charles (in GA)]

well i had use my iphone to talk about it as i had left my laptop at my work. sorry about my english language...


anyway, do i need get a handle for armstrong torque multiplier? i am going to meet the seller tomorrow afternoon. he said he bought it but had not use it... it has storage case to keep it inside.

Yes, you will need a handle to fit it. Can be anything strong that works, steel rod or pipe, removable breaker bar/ratchet handle like Snap On used on some stuff. Doesn't have to be fancy, just strong enough.

Hope you get it, that is a real deal on it.

Here is a link to the Armstrong catalog with it.

http://www.armstrongtools.com/ecommerce/product.aspx?500iehtwidsdstw=vpP4seT5mRsf4U09O4SqUw==

Now I'm confused, it says it has a 4:1 gear ratio, but a 3.3 to 1 torque multiplier ratio.... something I dont' understand.............. too late this evening, gotta get to bed.

Here is what you would have to pay if you bought it retail/discounted... nearly $500.

http://www.costplustools.com/Armstr...nd-Reaction-Bar-Torque-Multiplier_p_3156.html

Charles

 

[Underdog]

well i had use my iphone to talk about it as i had left my laptop at my work. sorry about my english language...


anyway, do i need get a handle for armstrong torque multiplier? i am going to meet the seller tomorrow afternoon. he said he bought it but had not use it... it has storage case to keep it inside.

No problem, people just have to understand, now its Elroy's turn.
Great deal, hope you get that new tool.

 

[Deafautotech]

if i get a steel pipe, what length i should get? i am going to grab it tomorrow as will meet him half way as i am in castle ton/ Lawrence while guy are just little far east washington street..

 

[Deafautotech]

No problem, people just have to understand, now its Elroy's turn.
Great deal, hope you get that new tool.

thanks... i do enjoy the Elroy's posts as sometime it is enjoy to read and other time it is really interesting...

i am forward to get it tomorrow...

 

[jteck75]

I used several of them back when I was a heavy equipment tech and they are the real deal. That looks like a great bargain on one. Just one word of advice,whatever you do,don't hook an impact gun to it. Other than that,you'll be glad to have it,and it'll pull you out of alot of tight spots.

 

[crewchief888]

if i get a steel pipe, what length i should get? i am going to grab it tomorrow as will meet him half way as i am in castle ton/ Lawrence while guy are just little far east washington street..

the handle on my OTC multiplier is 24" long or so. it really dont make any difference on the length.
you can try a piece of pipe, if that bends you may have to go up to 1/4" wall DOM tube.
my original handle has a slight bend to it, but i've pulled a lot of 600ft/lb + with it over the years

 

[Deafautotech]

I used several of them back when I was a heavy equipment tech and they are the real deal. That looks like a great bargain on one. Just one word of advice,whatever you do,don't hook an impact gun to it. Other than that,you'll be glad to have it,and it'll pull you out of alot of tight spots.

i always been use correct tools on right jobs... sometime i just wish i has this before as i had to borrow a snap on torque wrench 3/4drive to torque down the wheel bearing on f-150 with front brake/ wheel bearing assembly that required about 295 to 300 ft lbs...

 

[Deafautotech]

the handle on my OTC multiplier is 24" long or so. it really dont make any difference on the length.
you can try a piece of pipe, if that bends you may have to go up to 1/4" wall DOM tube.
my original handle has a slight bend to it, but i've pulled a lot of 600ft/lb + with it over the years

thanks. i will get it tomorrow afternoon and see what i can to find a strong pipe to fit in...

 

[Elroy]

sorry about my english language...

What is there to be sorry about?

Elroy understands you just fine.

Andy, here is the bottom line as Elroy sees it:

You don't let your disability stand in the the way of making things happen. You get up every morning and put your pants on the same way Elroy does.

You stand up and face the world head on.

You have been loved by good parents and you have developed into a fine man. There is nothing you can't do.

When some jerk makes fun of Elroy, he gets a little satisfaction.

People who have short comings in their life make fun of Elroy. Elroy told me that Andy can wrench in Elroy's garage any time. Elroy is confident that Andy could show Elroy a trick or two.

 

[nate379]

The one we use at work has a pipe that is 5 or 6 feet long.

For your application though, don't get me wrong, yes this is the "correct" way to do it, I have never had one fail from just putting it "Bubba" tight.

You will need a 2nd person to help with that torque multiplier. You can use it alone if you can rest the handle against something, like the floor but it's still hard to hold everything lined up.

if i get a steel pipe, what length i should get? i am going to grab it tomorrow as will meet him half way as i am in castle ton/ Lawrence while guy are just little far east washington street..

 

[Hiball]

What is there to be sorry about?

Elroy understands you just fine.

Andy, here is the bottom line as Elroy sees it:

You don't let your disability stand in the the way of making things happen. You get up every morning and put your pants on the same way Elroy does.

You stand up and face the world head on.

You have been loved by good parents and you have develpoed into a fine man. There is nothing you can't do.

When some jerk makes fun of Elroy, he gets a little satisfaction.

People who have short comings in their life make fun of Elroy. Elroy told me that Andy can wrench in Elroy's garange any time. Elroy is confident that Andy could show Elroy a trick or two.

+1 Andy contributes more to this Forum than alot of Members, Its always amazes me how often people miss the Details in Life. I mean Seriously.... they get so excited about poking fun at someone and miss that the person there blastings name is "DeafAutotech" It makes me Wonder sometimes... The Best part about the Whole deal is its been 2 hours and he's yet to apologize or delete his Mis-post.

 

[Stick]

Now I'm confused, it says it has a 4:1 gear ratio, but a 3.3 to 1 torque multiplier ratio.... something I dont' understand.............. too late this evening, gotta get to bed.

The gears are 4:1, but after you account for losses through them (and the resulting loss in output torque, it's effectively changed to a ratio of 3.3:1, make sense?

 

[Elroy]

The gears are 4:1, but after you account for losses through them (and the resulting loss in output torque, it's effectively changed to a ratio of 3.3:1, make sense?

Excellent input

 

[Red Green]

well i had use my iphone to talk about it as i had left my laptop at my work. sorry about my english language...

Deafautotech there is no need for you to apologize about the way you write.


NAYLOR is the one pointing out his own ignorance and should be apologizing for his comment.

 

[Deafautotech]

update is i got it today and it look like brand new and the seller said he bought it but left it sit in box... i dont know why he bought it and not use it?? anyway he told me how to use it, it was good information because i always like to see and learn from other people who had it.. he told me that i need find a handle to go with it... the armstrong website dont mention about handle???

 

[t100]

any thick wall tubing will work. you can get the OD of the tubing with a dial caliper then go scrap shopping at your local steel yard. FYI, Warner Steel on raymond sells drop metal for 50 cents per lb. just few bucks you'll be all set.

 

[toolfreak]

Only thing I don't care for with a multiplier is you have to have something for the bar to go against. While it will work in the situation you are talking about, there will be many others that it will not.

 

[Charles (in GA)]

i he told me that i need find a handle to go with it... the armstrong website dont mention about handle???

Which I find rather odd. It seems that Armstrong is missing the opportunity to sell another piece to go with a tool. Possibly they realize that few would buy it, and would rather use a pipe or whatever is readily available, but it certainly odd that it doesn't specify "requires round handle of *** diameter, provided by user" or something like that.

Also realize that the unit "Provides output torque accuracy of +/-5%" which means, this is compounded with the accuracy tolerance of the torque wrench, So if you have a very tight torque spec that is very, very critical, be careful and cautious using it, or get a torque wrench rated for the job.

Charles

 

[Deafautotech]

well i am plan to use it for torque the 36mm nut on all new model f-150 front brakes with wheel bearing inside as assembly that for 4x2 models.... too many customers had problems with rotors and had to get prior approval to do machine or replacement if under of warranty... many techs used a ON-CAR brake lathe machine, i am not fan of those as most of time when i tried to use it, the bits got dull quick and ruin my time and rotors... the torque specific to tight the hub nut was 295 feet lbs...

 

[nate379]

Like I said on those I just "Bubba tight" them. I would put money down that 9 out of 10 shops do the same as well.

We use the multiplier at work, but the nut we have them for is torqued to something near 600ft/lbs.

 

[Deafautotech]

wow...

i am rather to do right job with right tools...

my truck (2002 Dodge ram 3500 4x2) has Dana 70... but my work has big diesel shop that do a lot of big truck that used by fleet business like Duke Engery, AT&T, and many commercial business that use F350 to F550 trucks as service trucks... my work dont see much of F650 or F750....

 

[nate379]

It's still doing it right. Realize that pretty much EVERY nut and bolt on a car has a torque spec. Do you follow all of those as well? After wrenching for a while you get a "calibrated arm".

Don't get me wrong, I'm not saying that you buying that multiplier was a bad thing at all, I was just saying I would bet most mechanics don't have one... or might not even know what it would be used for.

 

[Deafautotech]

It's still doing it right. Realize that pretty much EVERY nut and bolt on a car has a torque spec. Do you follow all of those as well? After wrenching for a while you get a "calibrated arm".

Don't get me wrong, I'm not saying that you buying that multiplier was a bad thing at all, I was just saying I would bet most mechanics don't have one... or might not even know what it would be used for.

I did had used torque wrenches a lot on my first 5 years, many techs told me that i wont make money for living if i do that... even master tech tried pulled my torque wrench out of my hand and gave me his air ratchet to do it quick...

i still use torque wrench for reasons but other i has use common sense myself. Heck no one in my work has more than 6 torque wrenches as i has 8 torque wrenches... also no one in my work has or use a torque multiplier!!!

 

[Hiball]

I did had used torque wrenches a lot on my first 5 years, many techs told me that i wont make money for living if i do that... even master tech tried pulled my torque wrench out of my hand and gave me his air ratchet to do it quick...

i still use torque wrench for reasons but other i has use common sense myself. Heck no one in my work has more than 6 torque wrenches as i has 8 torque wrenches... also no one in my work has or use a torque multiplier!!!

Im Like you, Its a good feeling when you have the Right tool for the Job and a even better feeling to know the job was done properly.

 

[t100]

the time you didn't use it, that's the one would come back and bite your ***.

do it the right way, specially on where it matters.

 

[OldToolMan]

I have a Snap-on torque meter 3/4" drive it dose not need a reverse torque bar very handy tool if you need pics i believe S-o still sells them .i can send pics if you would like [email protected]