Is there a hydraulics primer?

[Nelstomlinson]

I want to learn about tractor hydraulics. Is there a primer somewhere that explains the controls and hydraulic circuits which are commonly used in tractors? I understand the basics of hydraulic systems; things like pressure * area=force and how flow rate translates into speed. What I'm lacking, I think, is an understanding of what sorts of control valves are available and how they are commonly used.

 

[puckgrinder85]

Im sure the internet is full of good reading on this subject. If not buy a hydraulic training book. I still have mine from college and look back on it every now and again for different stuff. Sometimes just ask on here if you need a little clarification on what works in the real world.

 

[davrow]

just ask on here if you need a little clarification on what works in the real world.

Ah, but without a basic primer first, many of us just confuse the situation by not knowing how to ask.

I'd like such a tractor-specific primer, too.

 

[kennyd]

Here is a good general one: http://www.derijcke.com/dl/manual.pdf

I don't know of any just about tractors, but they are simple Open Center (most small to mid sized machine) or Closed Center (larger ag machines) systems.

 

[davrow]

Here is a good general one: http://www.derijcke.com/dl/manual.pdf

Nice manual, Kenny - thanks.

What I really need is a small book, with color pictures, that says "When JJ says this 'xxxx' this is what it means". :laughing: He knows so much his answers often leave me in the dust...

 

[Nelstomlinson]

Thanks, Kenny. That manual answers some of my questions. Maybe that will get me far enough along to come up with some more questions!

 

[J_J]

Come on now, I thought my replies were true to the fact and totally clear and succinct.

I try not to be wrong, and if I am, I will correct same and apologize.

If you can not find the data you want, just ask. There are many knowledgeable people here and on the Internet .

There are also many books, videos and CD's on hyd.

Many time you can ask the basic question on whatever in the search window, and generally find the answer.

I learn many thing just by reading the post that interest me and asking questions.

 

[davrow]

Thanks, Kenny. That manual answers some of my questions. Maybe that will get me far enough along to come up with some more questions!

Nelstomlinson, I also found this older thread here on TBN - mostly recommending John Deere educational stuff: http://www.tractorbynet.com/forums/hydraulics/198400-book-hydraulics.html

JJ, hope I didn't get too personal mentioning you by name. I hold you in high esteem, you are rarely 'wrong'. But sometimes someone posts a picture of a valve assembly and you say "that is a 6-port valve" and all I can see is 4 lines... and I just know it is my lack of comprehension, not you saying the wrong thing. :laughing:

 

[puckgrinder85]

Im sure there are such things on youtube as well for visual learners like me.

 

[davrow]

Im sure there are such things on youtube as well for visual learners like me.

So, I tried a couple You Tube videos - some not bad. But the best I found so far was by an English guy - so the question arises...

Is a sub-plate and a manifold the same thing?

(if I needed an answer I would ask in the Hydraulics section here... this is more to point out why I need a basic primer)