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Massey Ferguson 1655 hydraulic drive problems.


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#61 NUTNDUN OFFLINE  

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Posted March 13, 2011 - 01:05 PM

Thanks for the pics coldone. I can't believe how much different your adjustment tension spring looks then mine. Yours looks like it would put a lot more pressure for the tension then mine does. I gotta go to Tractor Supply for some air line and fittings and I will check their springs and see if I can't find one that will help put more tension on everything. I will also get some pics of my setup here soon and get them posted.

#62 olcowhand ONLINE  

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Posted March 13, 2011 - 02:14 PM

My MF1650 has that large a spring on it's pto belts also. Possibly someone replaced your spring with a much weaker one. That would create slip for sure!

#63 NUTNDUN OFFLINE  

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Posted March 13, 2011 - 03:56 PM

My MF1650 has that large a spring on it's pto belts also. Possibly someone replaced your spring with a much weaker one. That would create slip for sure!


I stopped at the hardware store and got two new belts just in case and also got a larger spring that is much stiffer then the one that is on there. I will take some pics and post them then.

#64 Alc ONLINE  

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Posted March 13, 2011 - 05:49 PM

If someone thought their belts where slipping how would you check ? At work we use a non-contact tach. to check shaft speeds but not a common tool box item . Would you be able to shut the tractor right at the time it's acting up and the pulleys or belt be hot ? Al

#65 NUTNDUN OFFLINE  

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Posted March 13, 2011 - 06:02 PM

Well, I hate to report that it isn't the belts. I adjusted the belt tension to where there was no way they were going to slip and they didn't. It is something in the hydro or maybe a pressure relief valve. I went back out to the trusty tree and went up against it in low gear again and the driveshaft kept spinning like it was idling and the hydro was making all kinds of weird noises and you could feel it kicking back in the pedal. It is almost like there is air in the system or like mentioned already the pump needs machined.

#66 olcowhand ONLINE  

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Posted March 13, 2011 - 07:42 PM

Tear her down then & post us some close-up pics of all contact surfaces. We'll get this machine up & running!

#67 NUTNDUN OFFLINE  

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Posted March 13, 2011 - 07:47 PM

At what point of tear down do I need to worry about the pistons coming out of the bores? I know you can't get them mixed up due to being sized to each other.

#68 olcowhand ONLINE  

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Posted March 13, 2011 - 07:54 PM

At what point of tear down do I need to worry about the pistons coming out of the bores? I know you can't get them mixed up due to being sized to each other.

Actually, I've read where they are machined so well that they will interchange with no problems. In my 1650 turned 2055, I used parts from 2 hydro's, and all were swapped around & she's strong as a new one. You shouldn't have to worry about interchanging pistons in the holes. Do try to keep the pistons to the same cylinder though.... motor & pump cylinders.

#69 coldone OFFLINE  

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Posted March 13, 2011 - 07:54 PM

Well Shoot! I was hoping it was just the belts. Sorry for your problems, I know its frustrating but keep with it. The tractor is worth the head ache.

#70 NUTNDUN OFFLINE  

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Posted March 14, 2011 - 08:05 PM

Wow that was more work then I was expecting. Lol. I got the hydro pump removed from the tractor but that is as far as I got. Any pointers on disassembling the rest of the pump?

Here are a couple of pics.


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Attached Thumbnails

  • uploadfromtaptalk1300151129420.jpg
  • uploadfromtaptalk1300151156325.jpg


#71 olcowhand ONLINE  

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Posted March 14, 2011 - 08:16 PM

OH...that is not a Sundstrand, it's an Eaton. never seen a Massey with an Eaton, just the Snapper version. I know little to nothing about the inner workings, but nothing like a Sundstrand, that's for sure. They wear out sooner than Sundstrand units do IMO. That is the same unit as used in the MTD 990 series and many other GT's.

#72 NUTNDUN OFFLINE  

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Posted March 14, 2011 - 08:37 PM

OH...that is not a Sundstrand, it's an Eaton. never seen a Massey with an Eaton, just the Snapper version. I know little to nothing about the inner workings, but nothing like a Sundstrand, that's for sure. They wear out sooner than Sundstrand units do IMO. That is the same unit as used in the MTD 990 series and many other GT's.


Well that sucks lol. Are the Eatons easier to get parts for? I wonder why it has an Eaton and not the Sundstrand.



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#73 coldone OFFLINE  

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Posted March 14, 2011 - 08:40 PM

The eaton 11 service manual is here in the library.

#74 bhts OFFLINE  

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Posted March 14, 2011 - 08:47 PM

I have to agree with dan on it not being a sundstrand and that is strange.That is a eaton 11 pump and there is a manual in the manual section. Would be better to see it then all of us telling you how to take it apart.

#75 olcowhand ONLINE  

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Posted March 14, 2011 - 08:57 PM

Also, the Eaton's aren't garbage at all, just not as good as Sundstrand IMO. They also do NOT go as fast as the Sundstrand in high range, but plenty fast enough.
Never been into an Eaton.




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