Hydraulics 101

[bikerzing]

Can you guys point me in a direction to get educated on hydraulics? This is an area that intimidates the crap out of me. I have an older JD 1020 that purchased and would like to convert the connections to quick connect and replace a few of the hoses. I would also like to figure out how or if I can install a remote hydraulic connection in the back. But alas, I know nothing. I appreciate your help. God Bless!

UGH! I misspelled hydraulics. Well that should get some attention.

 

[buickanddeere]

Re: Hydrolics 101

HYDRAULIC not hydrolic

Parts list is here. Just about any salvage yard will have all the parts but they maybe on another but similar model.

John Deere - Parts Catalog

 

[Tx Jim]

Re: Hydrolics 101

JD 1020 has closed center hydraulics for 3 pt & rear remotes BUT depending on tractor serial number could have open or closed center hyd's for power steering. Closed center hyd's builds pressure to a set pressure known as stand-by pressure. In this case factory stand-by pressure is 2250 psi. When stand-by pressure is reached pump shaft continues to rotate with engine crankshaft but pump ceases to pump oil. Pressure is trapped in hyd lines. One must utilize a closed center valve on CC system and only utilize open center valve on OC system. Open center hyd's pumps oil continuously under low pressure when engine is running then when circuit is chosen by moving control valve pressure is applied to operate hyd function.
HTH's,Jim

 

[KWentling]

Re: Hydrolics 101

Hydraulics are a lot like electricity and controls (valves, etc.) like electronics. There is a lot to know, but fortunately, tractors, especially open center ones are pretty simple. Yours being a closed center, is a little harder. The changing hoses and adding quick couples should be as simple as it looks. Adding the valve I would look at salvage as has been suggested as those tractors had the option of svcs. I'm not sure I have ever seen one that didn't have at least one.

One other thing it shares with electricity, is you can't see it, and it can kill you, so respect it. Before you break any connections make sure loads are supported and pressures are relieved

 

[bikerzing]

Re: Hydrolics 101

Yeah, I couldn't edit the title after I posted and now I look like a moron. Oh well, not the first time. :mur:

 

[muddstopper]

Re: Hydrolics 101

Best site I have found is Hydraulics Math - YouTube. There are about 30 some odd hours of video covering pretty much everything. Its not the same as hands on instructions, but the visuals help more than a pic in a book

 

[aczlan]

Re: Hydrolics 101

Yeah, I couldn't edit the title after I posted and now I look like a moron. Oh well, not the first time. :mur:

I fixed it for you. Have a great day!

Aaron Z

 

[Xfaxman]

Here is one that covers the basics: Hydraulics 101

Bailey Hydraulics has good info, click "Support" for more: Hydraulic Terms

 

[woodlandfarms]

I own a fully hydraulic tractor. it is intimidating, but in the end not that hard. Big thing is that this is dangerous if done wrong. Pressurized systems will tear your skin off instantly. The basics are pretty simple, not much to get concerned about. When you start designing, then it becomes complicated like anything else.

For you, learning how to properly connect a hose (cleanliness is the key btw - treat any hydraulic work like surgery) is fundamental. Learn the different names of your connectors and why 3/4 is also 12. Learn the difference between open center and closed center and you are about done with education. If you choose to build something, come back to this forum and you will get amazing guidance. I have build a post hole digger and a stump ginder (fully hydraulic) with the help of these great people.