The Fordson Tractor Pages Forum

there is a bar that is made for ajusting hydraulics on a fordson dexta..http://www.fordson-dexta.de/downloads/update2.pdf

could someone give me a lend of one?? also could someone check if the linkage in my lift looks ok on my last post.? THANKS very much guys! under hydraulic lift mystery

Hi there and welcome.

We have not long reset the hydraulic clearances for the controls. You don't need the tool although I can see the benefit in the speed of use. There is also a double end square bar machined to measure the clearance of the control valve at two specific points. A long steel rule and a keen eye will suffice used along with the detail from the Wiki pages on this website (a username and password is required to access but search the forums and they should be easily found). You will want to print document 'C' on the front page of the wiki titled "Dexta And Super Major Hydraulic Setting". Once in position you can tighten the lift arms in to position ready for adjustment using the bolts that hold them on the lift shaft

Check the condition of your cam follower pin while you have the top off (search the boards for more info) ours was completely missing but from what I can see on your photos it doesn't look too bad.

Check out the photos of our hydraulic top before and after the rebuild here yours doesn't seem so bad.

Hope your qualitrol yolk doesnt take too much freeing off.

good luck[/url]

thanks eddie! your lifts were very very stuck!! But what a job you did on cleaning them..she must not have been running for a long time..Any tips on removing the yoke?? Is is best to remove it when its still on the tractor??

Draft Control Main Spring

Select draft control.
Lower the lift arms and set the lever at the bottom of the quadrant.
Remove the pin that connects the top link yoke to the spring link.
Turn the spring link on the thread until all movement is taken out between spring and spring link and spring pressure is felt.
Re-connect the top link yoke.
Draft Control Setting for: New Performance Super Major 1963 to 1964
Draft Control Main Spring

Follow all steps as described above.
Turn the spring link until all movement is taken out of spring; then tighten until movement returns.
Back off to position of minimum/no movement.
Re-connect the top link yoke.

If you go onto the Wiki ( password- fordsontractorpages / dotty) you will find the settings all detailed out and suggestions for setting without the tools.

Brian you truly are the fordson god!.Also brian.What does this mean?.''Remove pin that connects top link yoke to spring link'..'Its out of the wiki site..Does it mean ''remove the pin which connects the spring from the top link rocker?''? And when I try and turn my spring it feels like its free for a small bit of a turn,,but just gets stuck again when i turn it further! when i go to turn it more with pressure applied the main control spring itself bends and i am afraid i will snap the main control plunger!!should I heat it up? I just dont want to break it! and just wondering brian is it vital to set the main control spring and would it not be already set? Thanks a million..

Yes, thats the pin, otherwise you would not be able to turn the turnbuckle onto the spring.

You will have to make the decision whether you want to chance damaging the linkage. The linkage is held in position by an extension of a pin on the seat retaining stud so this too is vulnerable.

You will have to heat the turnbuckle up and keep moving it backwards and forwards on the thread. It is a very fine thread too.

The turnbuckle is used to help set the sensitivity of the lift to draft changes from the implement. This can be important if you are using the tractor for ploughing but less so for other work. If the lift is adjusted correctly internally, the draft spring may not need adjustment.

If you are going to use the tractor on mowers etc. then you will be using position control and the draft spring has no effect on the lift anyway.

Another question on the Wiki: "Now move the arms down until the upper surface of the yoke in which the linkage fits is level with the gasket surface of the lift housing."

Could somebody explain/show a picture of the "yoke" Is that the arm which is pushed by the lift cylinder?

Nils

what it basically means is that you line up the bottom of the top lift housing with the bottom end of the two arms on either side of the top lift..as far as i know!! if you want to find out what yoke means go to the parts manual and it should point it out.

I have removed yoke today!! wooooh!! I then connected the lift arms up to the top lift arms and started up the tractor..The lift arms worked but fast when going up and very slow going back down! also when I am raising them ,,when i want to stop them from going up i have to push the main control lever down a small bit..is this normal?

Raymondc71 wrote:I have removed yoke today!! wooooh!! I then connected the lift arms up to the top lift arms and started up the tractor..The lift arms worked but fast when going up and very slow going back down! also when I am raising them ,,when i want to stop them from going up i have to push the main control lever down a small bit..is this normal?

Are you aware that the hydraulics are single acting and so rely on the weight of the implement or just lift arms to counter the lift. Assuming your relief valve isn't stuck adding weight should bring the arms down faster (stand on them if you need to). Did you strip and clean the relief valve on the oil return pipe that is attached to the filter element (not the metal gause one attached to the pump)?

You can check out our videos of the hydraulics functioning do yours work the same?
1.http://www.youtube.com/watch?v=a_-vDZk8Scs
2.http://www.youtube.com/watch?v=prPe2zJTU_Y
3.http://www.youtube.com/watch?v=kFGQZM57O64

Regarding the lift speed do you have a flow control lever mounted on top of the external service port? You can see the lever under the seat in the first few seconds of our 3rd video above Moving this lever to the left or right will adjust between slow and fast lift. Most of the older dexas didn't come with these but it may have been fitted at a later date.

Ya before when they were working the only reason they were going down fast was because they were hardly any O rings and she was not able too hold the pressure of the arms alone!..That just dawned on me now ..thanks eddie!!

Brian wrote:If you go onto the Wiki ( password- fordsontractorpages / dotty) you will find the settings all detailed out and suggestions for setting without the tools.

I typed this in but got something else. Would like to adjust without the tool. Any help will be appreciated.

naildriver wrote:

Brian wrote:If you go onto the Wiki ( password- fordsontractorpages / dotty) you will find the settings all detailed out and suggestions for setting without the tools.

I typed this in but got something else. Would like to adjust without the tool. Any help will be appreciated.

Is this it; Super Major, dexta and super dexta hydraulic lift settings [part 1] ???

Nisse wrote:Another question on the Wiki: "Now move the arms down until the upper surface of the yoke in which the linkage fits is level with the gasket surface of the lift housing."

Could somebody explain/show a picture of the "yoke" Is that the arm which is pushed by the lift cylinder?

Nils

I must not be in the right place becauseit does not say this

The yoke is the bit on the arms that the lower links fit in.

I'm ready to adjust my hydraulics. I would like to do this with out "the tool". I can't seem to get on Wiki, is this something that you join. What I can see here looks like it must be part of the Wiki instructions. Also names given or terminology doesn't match my "downloaded pictures" and the names or terminology.

you need the following to get on the wiki:

User name: fordsontractorpages
Password: dotty

the link you want is 3rd one down on the main wiki page using these instructions the 'tool' is not required as all the tool does is measure the correct distances in the control adustamen these measurements are listed in the wiki

I got it now, didn't understand at first. It's printed, now let's see if I can follow directions. Again, Thanks

???Draft Control and Qualitrol the same? My drawings don't use this terminology; "remove pin that connects top link yoke to spring link" not in my drawings. Could this be refering to a hydraulic top not yet removed?OK that must be it per later instructions of removing top. This is where the confusion is coming from since it is already torn down. Thanks

Raymondc71 wrote:what it basically means is that you line up the bottom of the top lift housing with the bottom end of the two arms on either side of the top lift..as far as i know!! if you want to find out what yoke means go to the parts manual and it should point it out.

When the bottom of my lift arms become parallel with the gasket and line up, on mine, that's as far as it goes. Is that correct. In other words, they will not go lower than my gasket line. Is this where it needs to be to adjust? Makes me think that I am misunderstanding something otherwise instructions would just to move arms to bottom.

Before I install this cover tomorrow assuming adjustments go well, is there anything else I should inspect? I have replaced my worn pin and had some brazen weld and machine work done to some excessively worn parts, cleaned it all up and now to adjust. Anything else before I bolt her down?

Sounds like you have got it all worked out.

Got her done,Thanks