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MF 135 - Hydraulic Controls

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Stones Throw Farmer

04-07-2008 05:42:47

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Hi All,

We have a newly acquired 1966 - MF 135.

It has remote hydraulics. The hydraulic controls are currently mounted on the top right fittings between the drivers legs (and don"t utilize the pressure port on the sides)

Currently the lift operates via these controls and will not operate independently with the draft and/or position control lever. To operate the lift I must keep the position control in "constant pumping" position and then either put the draft lever up or down and then toggle the remote lever to work the lift.

I"m not sure why they"d be set up this way. But I"m hoping to be able to configure them to operate via the draft and position control levers and either not utilize the remotes or leave them available to operate an independent cylinder as intended.

This is probably a tough one to "trouble shoot" without seeing it in person? Does anyone have any thoughts?



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Gerald J.

04-07-2008 08:46:13

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 Re: MF 135 - Hydraulic Controls in reply to Stones Throw Farmer, 04-07-2008 05:42:47  
There have been several varieties of these remote adapaters, made by different companies as well as by MF.

The manual you need is form 690 562 M3. Cost 75 cents in 1972. Its called "OPERATOR'S MANUAL. Basic & Auxiliary Hydraulic systems for MF 130 through MF180 tractors." Its been posted on the internet with the file name: "mf130-180aux-hydraulics.pdf" Google should turn it up instantly.

The way mine works (made by Cross) is that the left handle has three positions. Pulled back it lowers the three point. Mid position, it locks the three point and enables the right remote(s). The remote only works (as does 3 point rising) when the pump is pumping which requires the original controls to be full up. (constant pumping position). The left handle pushed forward (and mine has a detent in that position) the three point rises if the original controls are set for constant pumping, but the three point also responds to the lift and draft controls as if the auxiliary valve was not present.

Generally the original controls require the one that is to be in charge sets the position or the draft and the other is set higher. One control sets height, the other sets the draft, mainly for plowing. The draft control causes the three point to lift the plow in tougher soil and so keeps the driver from having to shift down to maintain the same plow depth in sticky soil. Those original controls control the pump.

Gerald J.

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04-07-2008 06:30:22

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 Re: MF 135 - Hydraulic Controls in reply to Stones Throw Farmer, 04-07-2008 05:42:47  

Is this what it looks like?

The way you have to operate it is stick the lever that operates the three point in neutral and use the pin to keep it in place - from what I understand this allows you to operate the three point utilizing the quadrant.

I recommend getting the Basic Hydraulic/Auxillary Hydraulic Operators Manual Supplement(which I"m going to do) its on ebay for 16 bucks.

If your quadrant looks like mine, it has pressure control too and if you can get a hold of that manual (while mostly irrelevant to the topic) it"ll give you a better understanding of the capabilities of the hydraulic system.


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Stones Throw Farmer

04-07-2008 06:47:59

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 Re: MF 135 - Hydraulic Controls in reply to Christos, 04-07-2008 06:30:22  
Yea pretty much. I just posted a pic as a reply to Soundguy.

So I'll look at pinning it in neutral. Unfortunately I'm in the midst of servicing the fuel filters - lines - etc. so I'll have to give it a try a bit later.

Would you mind forwarding the Ebay link to the hydraulic supplement if you have it handy. No problem if not I can seek it out.


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04-07-2008 06:36:01

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 Re: MF 135 - Hydraulic Controls in reply to Christos, 04-07-2008 06:30:22  
By the lever I mean the one for the remotes...not the quadrant (I should have paid attention)

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04-07-2008 06:16:27

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 Re: MF 135 - Hydraulic Controls in reply to Stones Throw Farmer, 04-07-2008 05:42:47  
Post a pic. I'm curious as to the plumbing that was done on that remote.


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Stones Throw Farmer

04-07-2008 06:42:26

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 Re: MF 135 - Hydraulic Controls in reply to soundguy, 04-07-2008 06:16:27  

I'm not sure if this photo helps or not. You'll notice its plumbed on the top right tractor ports.(though not the side port) The remote unit itself is plumbed on the right side front and back. The drivers left control seems to operate the lift.

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135 Fan

04-07-2008 12:40:44

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 Re: MF 135 - Hydraulic Controls in reply to Stones Throw Farmer, 04-07-2008 06:42:26  
You don't want to lift the 3 pt. all the way up in constant pumping. Constant pumping is only used for aux. hydraulics. I have a different valve than yours but similar. To make the 3 pt. draft and position control work, pull the left lever (when your sitting in the seat) back and leave the other one in neutral. Then your draft and position controls should work. If they don't, then try pushing the left lever forward to see if thet work. Most work when the lever is pulled back but some like Geralds work when forward. The clutch needs to be out at least half way for any hyd. to work. To use aux. hydraulic valve, put left lever in neutral (center) position and then put draft all the way up and position into constant pumping. Then the right valve in front of the seat should work a remote cylinder. You may need to lower the 3 pt. a little from the highest position to get the max speed of the remote cylinder. The 3 pt. will probably creep as well with the left lever in neutral. My aux. circuit works the fastest with nothing on the 3 pt. so if I want to do a bunch of loader work and not worry about having to keep lifting the 3 pt. every 3 minutes or so, I'll just take any implements off. The manual is on Puddingsworld website. Hope this helps. It's only complicated until you figure out how it works, then it makes sense. Dave

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135 Fan

04-07-2008 12:46:04

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 Re: MF 135 - Hydraulic Controls in reply to 135 Fan, 04-07-2008 12:40:44  
I can't edit or correct my posts anymore. The whole thing disappears. It should say they work, not thet work. I wanted to add that draft control is only used with ground engaging implements and is not for setting the height of the 3 pt. By your right ankle is a control for how fast the draft control responds to changes in load on the tractor. Dave

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04-07-2008 06:55:38

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 Re: MF 135 - Hydraulic Controls in reply to Stones Throw Farmer, 04-07-2008 06:42:26  
I'm a ford guy.. not a MF guy.. and there are plenty of differences inthe two.. but some similarities.

on fords, there is a top cover port you can add a valve to that grabs hyd fluid before the 3pt lift.. IE.. a series valve. if the remote is in use.. it grabs the oil befor ethe lift.. when you let go of the remote, it becomes open center, and oil is once agian available for the 3pt.

Almost sounds like you have a series valve that is dumping oil to the sump before it gets tot he 3pt, and the spool itself is what is hooke dover to supply the 3pt.

That's all conjecture... I'm sure a MF expert will be on soon.

i was just interested in seeing the setup as it bares some similarities to ford setups.. plus i just had to work on some hyds fro a newer MF, that used a blank tap plate onthe hyd cover to run a fel.. it was an -experience- to work on.. etc.


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