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Mf Elf / Gutbrod Pto Driven Trailer


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#16 MH81 ONLINE  

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Posted October 25, 2013 - 08:28 PM

Looks neat but I guess I'm dumb but what is it used for ?


Al, it's covered in this article. Good read actually.
http://gardentractor...lfin-magic-r160
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#17 Gav694 OFFLINE  

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Posted October 26, 2013 - 04:38 AM

Wow, what a trip. Glad you had a good time. Did you get 2 of them so you can ship one to Will??

I only bought the one, that's all the bank manager would allow :D but I have seen another advertised online, time to dust off the check book Will

 

How do they get the trailer drive speed to match the tractor's drive speed while running off the PTO? Does it have it's own transmission too?

The tractor has the option of engine speed PTO or Land drive PTO, so in Land drive one revolution of the tractor wheel will drive one revolution of the trailer wheel

 

Nice trailer, really nice actually. It sounds like a nice trip. It looks like you had that VW Tiguan loaded pretty heavy. 

Its amazing how much stuff you need when you have a 2 year old with you, the Gutbrod trailer is not that heavy, about 280 kg I think but my road trailer is about 750 kg empty


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#18 Gav694 OFFLINE  

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Posted October 26, 2013 - 04:52 AM

Bravo. You got it!!!!! :dancingbanana:

 

Glad you had a good trip. I hope it's(trailer) all you expected.

It's nice that you got to make a family event out of it.

 

Did you stop, and pick up that PTO adaptor, so we can see

some action video soon?

 

What size are the tires on it?

Didn't have time to stop for the PTO adapter, had to get back in time for work  :(

The tyres are 7-12 that are on which are no use which is a shame as they are in real good condition, I need to swap them for 6-12's to match the tractor so they turn at the same speed.

 

AWESOME Gav!  You are now the only person I know that owns a trailer like that, and that trailer looks great!  Loks like the pto adapter is in back of the trailer as well!  Action video soon I hope!

PTO powered Video will be a little while olcowhand until I can source some tyres, but I will try to get some un-powered shots

 

Looks neat but I guess I'm dumb but what is it used for ?

It gives the Elf 4 wheel drive and allows you to carry more weight in the trailer as you are not actually pulling it, it follows you.

trailer brochure.jpg

 

John


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#19 IamSherwood OFFLINE  

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Posted October 26, 2013 - 05:14 AM

"The tyres are 7-12 that are on which are no use which is a shame as they are in real good condition, I need to swap them for 6-12's to match the tractor so they turn at the same speed."  

 

 

I have 7-12 on my Elf. See, it just makes so much more sense to send that trailer

over here for a quick (4-5 year) restoration. :smilewink:


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#20 IamSherwood OFFLINE  

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Posted October 26, 2013 - 06:19 AM

How do they get the trailer drive speed to match the tractor's drive speed while running off the PTO? Does it have it's own transmission too?

 

As John said, you can select ground or engine speed for the tractor pto output. The trailer has differential/reduction to match the tractor.

 

red axle.JPG Diff (2).JPG

 

This past winter I started investigating the idea of building a trailer. The axle, was

the starting point.

Daniel (Olcowhand) and I spent many hours, back and forth, trying to figure out how to

come up with some sort of Diff with matching reduction. He's really smart on that stuff.

 

The output reduction on the tractor PTO is 20:1. Small diffs, like out of a golf cart, are 

about 3.5:1 (if I recall). That's a lot to make up using sprockets and chain, so we

entertained the idea of an inline reduction unit.

 

P1010471.JPG browning ebay.png

 

It was doable, with a bunch of work and fitting. The other stumbling block was

to find a matching splined shaft for the female splined tractor PTO output.

And then building that adaptor/shaft. Just by crap luck, I discovered that

a 1976 Evinrude 90ish HP outboard (if I recall) prop shaft, used the same

spline. I called my mechanic, who just so happened to be cleaning out his shed

and taking stuff to the scrap yard. Within half an hour I had one.

 

P1010320.JPG P1010319.JPG

 

Anyway, by the time Dan and I had come up with a reasonable game plan, I

realized that my winter GT play time was coming to an end, so we shelved

the project. Some day I want to tackle it again. I promised Dan a hay ride

in it when it's done. :smilewink:

 

I think it's awesome that John has found this trailer, and made the trip

to get it. I only wish it where closer. It'd be so much easier to steal. :D


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#21 baerpath OFFLINE  

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Posted October 26, 2013 - 06:22 AM

Would one of these also work on my Gutbrod/Wheel Horse D250's ?   Jeez my wife complains when i  go from NY to TX after a tractor.



#22 Walkinman1 OFFLINE  

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Posted October 26, 2013 - 06:58 AM

Thanks for the explanations guys, it all makes sense now! Are these the only tractors that had that kind of option for the PTO? I've never heard of it before this... Also, is elf the make or the model? Potentially stupid question I know but also something I've never heard of.

#23 MH81 ONLINE  

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Posted October 26, 2013 - 08:13 AM

Thanks for the explanations guys, it all makes sense now! Are these the only tractors that had that kind of option for the PTO? I've never heard of it before this... Also, is elf the make or the model? Potentially stupid question I know but also something I've never heard of.


You just werent here for Will's ELF hunt. Try reading this: http://gardentractor...lfin-magic-r160

#24 Walkinman1 OFFLINE  

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Posted October 26, 2013 - 08:19 AM

Thanks for that link, that is just awesome!

#25 shorty ONLINE  

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Posted October 26, 2013 - 09:29 AM

That is a neat trailer. That would be totally awesome if you had hills to work on. The load is all on the drives then with lots of traction. Cool find. :thumbs:


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#26 Gav694 OFFLINE  

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Posted October 26, 2013 - 03:08 PM

More photos now I have it unloaded

Trailer 1.jpg Trailer 2.jpg

Trailer 3.jpg Trailer 4.jpg

Trailer 5.jpg Trailer 6.jpg

Trailer 7.jpg Trailer 8.jpg

Trailer 9.jpg Trailer 10.jpg


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#27 Gav694 OFFLINE  

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Posted October 26, 2013 - 03:58 PM

Would one of these also work on my Gutbrod/Wheel Horse D250's ?   Jeez my wife complains when i  go from NY to TX after a tractor.

 

Do you know what the equivalent Gutbrod is to your D250? If the PTO ratios are correct I don't see why not as long as you match up the tyre sizes also.

Thanks for the explanations guys, it all makes sense now! Are these the only tractors that had that kind of option for the PTO? I've never heard of it before this... Also, is elf the make or the model? Potentially stupid question I know but also something I've never heard of.

I Believe a lot of older agricultural tractors such as TE20 grey Fergusons and Massey 135's also had PTO,s which could select either engine speed or ground speed. I think you had to be really careful about reversing though as you could potentially power the attachment backwards causing damage.



#28 Cat385B ONLINE  

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Posted October 26, 2013 - 07:15 PM

"The tyres are 7-12 that are on which are no use which is a shame as they are in real good condition, I need to swap them for 6-12's to match the tractor so they turn at the same speed."  

 

 

I have 7-12 on my Elf. See, it just makes so much more sense to send that trailer

over here for a quick (4-5 year) restoration. :smilewink:

 

I would think it would be cheaper just to swap rims and tires......... :smilewink: :angel: :firejumper: :beerchug: :watching_you: :smiley-flag013:


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#29 MH81 ONLINE  

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Posted October 26, 2013 - 08:40 PM

Beautiful, just beautiful.
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#30 Gav694 OFFLINE  

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Posted October 27, 2013 - 08:00 AM

I would think it would be cheaper just to swap rims and tires......... :smilewink: :angel: :firejumper: :beerchug: :watching_you: :smiley-flag013:

Even better than that its just the tyres to change the rims and tubes will stay the same :D






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