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Discussion Starter #1
I very naively purchased the above transaxle thinking it was just a case of making up a couple of pull/push rods/cables, drop the 5 speed and replace with the hydro......
Now it has arrived and I discover I have run out of talent. I have gone searching for information on the www and this forum with no luck, as I have no clue what does what.
Below are some photo's with numbers as follows. The question for all 8 is What does this do?
1) Lever
2) hole (breather?)
3) Lever
4) Lever
5) Hydraulic coupler female
6) Hydraulic coupler female
7) Hydraulic coupler male
8) Hydraulic coupler male

Thanks in advance for all the help that follows :)
 

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Discussion Starter #2
.... some hours later and I have found a few things out, this is a 4wd hydro K574........Got that wrong then :banghead3
All is not lost though, I should be able to short loop the 2 flows back to the 2 returns, they can then be ignored....I think.

I am still working on the levers, I am guessing

1) Freewheel lever?
3) Brake lever:dunno::dunno:... but not sure if a brake is required on a hydro
4) Fore and aft lever?

I will keep hunting but if you are in the know please put me right.:thThumbsU
 

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Discussion Starter #3
1) Freewheel lever?
3) Brake lever... but not sure if a brake is required on a hydro
Wrong! a parts list now found that says
1) Brake lever
3) control lever...whatever that means
4) Bypass lever (what I called the freewheel lever)

Could I have got it more wrong....:hide:
 

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I'm glad you're answering your own questions, 'cause I don't know tuff torque. Control lever will be the input command, (forward and reverse). I doubt you could forget about the 4wd ports; if you find a circuit drawing I'd like to see it. Then maybe I can help you hook it up.
 

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Discussion Starter #7 (Edited)
Thanks for the suggestions, I will try asking the ones who should really know and report any response back here. Who knows this may come up as a problem for someone else and be useful in the future.:fing32:
 

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Discussion Starter #8
Contact Tuff Torq directly for the correct answers.
It is just about a week since I used the provided link to ask for info on the Tuff torq and I have not had a reply.
Has anyone got a more direct route to contacting them than the web page form I used before please?
 

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You could also try exploratory research, ie take it apart. It'll be more fun. Take lots of pictures. :goodl:
 

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Discussion Starter #12
Update! I sent an e-mail and got an almost immediate response telling me what I need to know.

The two male stubs loop together and the two female stubs loop together, I am on the case and will let you know how it pans out.
 

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On JD's with K46 trannies lever #3 is pushed rearward to make the tractor go forward. On the lever #4 forward engages the tranny and rearward is freewheel. On the brake lever forward is brakes on.
 

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Discussion Starter #15
Thank you rayjay, that is very useful information.
Is lever #3 progressive or just off/on?
 

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Discussion Starter #17
Progressive.
Thanks!

I have made some progress on the hydraulics front, I did a couple of drawings and sent them off to a hydro hose man who offered help and he is going to make me up a couple of hoses that will look not disimilar to the following.
 

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Discussion Starter #18
OK, the hoseman has come back asking what pressure the hoses need to withstand, any ideas?
I have an enquiry in with Tuff torq so I may get my answer there. If I do I will let you know.
 

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They should be minimum 2500 psi hoses.

I put 5800 psi hoses on my 2100 psi loader, but those wouldn't like that tight radius turn.
 

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Discussion Starter #20
Tuff torq came up trumps again!

The very nice man there (Derrik) sent the following details of the hydraulic system, I post them here in case they of use to others.

My hose man classes these as low pressure and the hoses should be with me soon!
Tudor said
They should be minimum 2500 psi hoses
That seems to be quite close to what the hose man has said to me, thanks for the input.
 

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