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Mf Elf / Gutbrod Pto Driven Trailer


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#46 Gav694 OFFLINE  

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Posted December 08, 2013 - 04:39 PM

Ok I decided to go with a set of four 6-12 Trelleborg tyres so off my letter went to Santa, as luck would have it he's busy later in the month so he dropped them off early.

The trailer and a spare set of tractor rims were sandblasted and a bit of MF yellow splash on, then I had the joy of fitting the tyres to them. This took a lot more effort than I remember, the side walls and the beads seemed really hard even after warming them all day.

 

Tyre Warmer/Play pen  :D

Tyre warmer.jpg

 

Comparison of 6-12 and 7-12, there is a much bigger difference than I thought there would be.

Tyre comparison1.jpg Tyre comparison2.jpg

 

New Tractor tyres

New tractor tyres.jpg

 

And at last tyres fitted to the trailer

Tyres fitted.jpg

Now I just need  to get it hooked up and take it for a spin.


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#47 KennyP ONLINE  

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Posted December 08, 2013 - 04:50 PM

Wow, there is a lot of difference. Looks like a capable helper you have there!


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#48 Gav694 OFFLINE  

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Posted December 08, 2013 - 05:02 PM

Wow, there is a lot of difference. Looks like a capable helper you have there!

He's certainly good at hiding things and collecting little stones  :smilewink:


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#49 Texas Deere and Horse OFFLINE  

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Posted December 08, 2013 - 05:03 PM

What a big difference between the 2, what is the ply rating on the new tires? At least they are all the same size now. :thumbs:


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#50 Gav694 OFFLINE  

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Posted December 08, 2013 - 05:06 PM

What a big difference between the 2, what is the ply rating on the new tires? At least they are all the same size now. :thumbs:

There 4 ply, should be 6 ply for the trailer but there not easy to get. The Elf I think had 2 ply originally.


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#51 Texas Deere and Horse OFFLINE  

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Posted December 08, 2013 - 05:09 PM

Well, those will be just fine unless you are planning on hauling in a big load out of the field. :D


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#52 UncleWillie ONLINE  

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Posted December 08, 2013 - 05:40 PM

Tires look good. Helper looks like he is having a ball.


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#53 MH81 ONLINE  

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Posted December 08, 2013 - 06:44 PM

Looking good, glad they came early.
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#54 IamSherwood OFFLINE  

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Posted December 08, 2013 - 09:33 PM

That was nice of Santa to show up early. Must want to have his Elfs all

dressed up in time. Looks good John. :thumbs:


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#55 Gav694 OFFLINE  

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Posted December 15, 2013 - 12:17 PM

Finally got the trailer hooked up and took a few pictures.

Trailer in field.jpg Trailer in field2.jpg

Trailer in field3.jpg Trailer in field4.jpg

Trailer on jacks.jpg Trailer stop.jpg

 

It took a while to get the PTO adapter to fit onto the tractor due to the sleeve on the tractor being rusty from lack of use (if it has ever been used) Then the PTO shaft from the trailer had to be shortened, this was also a pain to fit due to the splines on the coupling being rusty.

Now the trailer has the smaller tyres fitted and is hooked to the tractor the trailer body sits off level, the front is too high. The last photo shows the frame the body rests onto, I may remove an inch or two to level the bed up.

 

Also I don't think the trailer wheels turn at the same rate as the tractor ones, unless my method of testing doesn't work

Attached File  Trailer.wmv   3.82MB   34 downloads


Edited by Gav694, December 15, 2013 - 12:19 PM.

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#56 Texas Deere and Horse OFFLINE  

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Posted December 15, 2013 - 01:30 PM

They may turn at the same speed when they aren't using the differential it spin only one tire. I would drive in a straight line in the dirt and you can see the tracks to see if one axle is slipping while the other one isn't. The gears in the differentials maybe different size between the 2.


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#57 Gav694 OFFLINE  

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Posted December 15, 2013 - 03:14 PM

They may turn at the same speed when they aren't using the differential it spin only one tire. I would drive in a straight line in the dirt and you can see the tracks to see if one axle is slipping while the other one isn't. The gears in the differentials maybe different size between the 2.

I was hoping that running one wheel only through the diff might be knocking them out of sink. I haven't drove it anywhere where I can see the tyre tracks but it does seem to drive ok, I never noticed any push or pull on the trailer hitch.


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#58 IamSherwood OFFLINE  

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Posted December 15, 2013 - 05:38 PM

I counted 10 revs on the trailer, and 11 1/2 on the tractor.

Stupid question, but did you have the PTO selector in ground speed?

I haven't seen a picture of your shifter decals, but I have seen pictures

of other Elfs that had the decals oriented in reverse. Just a thought.

Probably more likely to be as Brian explained.

 

I didn't realize the trailer was that big in relation to the Elf.


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#59 Gav694 OFFLINE  

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Posted December 15, 2013 - 05:48 PM

I counted 10 revs on the trailer, and 11 1/2 on the tractor.

Stupid question, but did you have the PTO selector in ground speed?

I haven't seen a picture of your shifter decals, but I have seen pictures

of other Elfs that had the decals oriented in reverse. Just a thought.

Probably more likely to be as Brian explained.

 

I didn't realize the trailer was that big in relation to the Elf.

I think it was in ground speed, lever pulled back towards the seat.

Yes the trailer is a fair size I guess thats why the correct one is just that bit smaller.

What did you think to the angle the trailer bed sits at?



#60 IamSherwood OFFLINE  

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Posted December 15, 2013 - 06:12 PM

I think it was in ground speed, lever pulled back towards the seat.

Yes the trailer is a fair size I guess thats why the correct one is just that bit smaller.

What did you think to the angle the trailer bed sits at?

 

Lever back=ground speed. That's the way I understood it, from translating

the manual.

 

Elf PTO.JPG

 

Trailer angle isn't too bad. Being I've got the larger tires, It should be OK. :rolling:


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