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Show Parts for Model:

Massey ferguson 135 hydraulics

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Scott Hill

11-18-2002 18:57:39

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I have a 1973 MF 135 with a Perkins Diesel. The hydraulic system for the lift arms and remote cylinder both work slowly and sometimes with a shake or pulsing action. I have all the response settings on high and have changed the hydraulic/tranny fluid. It does work and will lift heavy loads, but it sems way too slow. Any ideas? Can it have air in the system or is the pump shot? If so, how darn hard is it to pull a pump out? Any help is sincerely appreciated.

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Mehl Hart

11-24-2002 15:43:25

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 Re: massey ferguson 135 hydraulics in reply to Scott Hill, 11-18-2002 18:57:39  
I have a 1974 MF135 whose hydraulics was jerky and has now stopped altogether. I have looked for the filter in question. But being new to tractors am not quite sure where the PTO filter would be located at. Can anyone help?

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11-24-2002 17:28:18

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 Re: Re: massey ferguson 135 hydraulics in reply to Mehl Hart, 11-24-2002 15:43:25  
Hi Mehl:
The first thing you will need to do is to drain the transmission of hydraulic fluid. There are two drain plugs.
Then look for the PTO speed selector lever. It is on the left side of the housing that your seat is mounted on. That lever engages a gear to operate the PTO. You will see that there is a cover plate with 5 or 6 bolts that will allow you to remove the cover. There is also a gasket under the cover so be gentle when you remove the cover. The PTO gear selector handle will come off with the cover. The filter is visible -(It sits in the middle, with a metal top and bottom cover) Remove the top cover by turning it counter-clockwise. Then lift out both the bottom cover and filter together making sure not to spill any sludge that may be inside the bottom cover. There is also an O ring that sits on the opening where the filter is installed. Make sure that you don't accidently dislodge this O ring and shove it into the hydraulic pump. It is needed so that the bottom cover of the filter will seal properly when it is re-installed.

Clean the filter (If you don't think the filter is cleaning up well buy new one)and the covers with Varsol and then re-install them. Then put the PTO cover back on making sure that the inside portion of the gear selector is placed in the slot so that it will engage the PTO properly, Then re-fill with new transmission oil and hope for the best.

P.S. This is assuming that your 1974 is the same setup as my 1970

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Scott Hill

11-22-2002 04:56:22

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 Re: massey ferguson 135 hydraulics in reply to Scott Hill, 11-18-2002 18:57:39  
My hydraulic problem seems to have been corrected by cleaning the filter behind the PTO cover. Funny how the owners manual doesn't even give you a hint that the filter exists. Thank you all so much for your help!!!!!!!!!!!!!!!!!!!!!!

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11-21-2002 20:49:29

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 Re: massey ferguson 135 hydraulics in reply to Scott Hill, 11-18-2002 18:57:39  
As the others advised, change the fluid if you did not us Massey Fergusaon Permatran III. Also change/service the filter. My model is different and you can clean the filter in solvent, dry and reinstall it. Get all 3 real MF manuals: Operator, Rpair, and Parts. The Parts manual is absolutely needed for the exploded detailed views, often missing in the Repair Manual.
Good Luck and let us know how you solve it.

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Gary in TX

11-19-2002 22:15:01

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 Re: massey ferguson 135 hydraulics in reply to Scott Hill, 11-18-2002 18:57:39  
Hey Scott,
My 70 model 135 gas does the for lack of a better term jumping action when raised. I have been told that is due to oil leaking past o-rings in the lift cylinder. Its kind of a catch 22 situation in a way, as long as mine is working other than that i'm going to leave it alone or if I just get free time(yea right) I might go into it and rebuild everything. You can get a pretty good view of things in the IT manual or a exploded parts diagram from your local dealer.
HOpe this helps, Gary

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11-19-2002 21:46:26

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 Re: massey ferguson 135 hydraulics in reply to Scott Hill, 11-18-2002 18:57:39  
Hi Scott:

I recently had a similar problem with my 1970 135 except my hydraulics went from slow to slower and then stopped working altogether. You mentioned changing the fluid. Did you also change or clean the hydraulic filter (remove the PTO Gear cover to get at it). My problem was fixed with a new filter - I had previously changed the fluid but didn't know about the filter.

Good luck.


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