Post by Foggy on Jun 16, 2017 20:56:23 GMT -6
Freeborn asked me to "splain" tractor hydraulics......so here goes.......
Tractors do not typically come equipped with extra hydraulic couplers (also called "remotes" and other things). In order to operate a hydraulic cylinder or a hydraulic motor you need to have one PAIR of hydraulic couplers - one for the fluid to go out.....and one to let the fluid go in. You also need to have a valve to operate the pair of remote couplers.
I think most of the tractors of recent times have a hydraulic pump as standard to get some fluid pumping thru these remotes HOWEVER the tractor companies don't always make it easy to tap into this hydraulic pressure (the fluid is typically common fluid with the transmission and rear 3 point lift). Therefore.....sometimes you need to buy and have installed various kits that allow you to hook up one, two, or three hydraulic remote (pairs of couplers) and valves to operate these remotes.
It can and does get quite expensive if you want multiple hydraulic circuits. Sometimes the guys that want (need?) more hydraulic circuits will install a splitter valve....which will allow two or more systems to operate depending on a choice made by the operator. So....this would allow one hydraulic line feeding into a splitter valve which and be electrically (or manually) controlled by the operator to have multiple hydraulic choices via the same valve. A common one for John Deer is called a "Fasse Valve" and you can google it and learn more. (I have considered one of these....but I get along with one pair of remotes.)
So....after you have the needed valves and couplings.....you then need to route the hydraulic fluid to your hydraulic operating cylinder(s). This can be done with hose or with "hard lines". John Deere offers a neat hard lines kit (wich also includes some flexible hose.) John Deere also has ONE remote valve as standard on their tractors in the 30 series. Therefore.....it is fairly economical to run ONE PAIR OF HYRAULIC REMOTES.....but more are gonna cost you substantial dough....therefore folks use things like a "splitter valve" or a "Fassee Valve" as said above.
I like the JD hardlines kit which will route the hydraulic lines to the front of the loader (and even has couplers at the point where the loader is removed - same as the couplers at the joystick). Thus......you can plumb a grapple and operate it via the "selective control valve" (which is already on the 30 series tractors). With the "quick couplers" you can use your grapple cylinder.....and within a few minutes disconnect the grapple and use your dirt bucket (and/or use the hydraulic circuit for other purposes).
I sometimes think I am going to buy a cylinder to attach to my landscape rake so I can change the angle of the rake from the tractor seat......but I never seem to get this done. If I bump into a cylinder and hoses at an auction I may buy it .....but it's not a huge deal to me. (and I am kinda cheap?)
When I put my Stump Grinder on my tractor......I have somewhat of a plumbing circus taking place. I use the Joystick and the loader hydrulics to operatate the swing and elevation cylinders on my stump grinder......and use my rear remotes to power the lift cylinders on the loader (I don't have any grapple or bucket curl functions available at this point....as I am using those to run the stump grinder and to lift the loader) IN TOTAL I HAVE THREE Hydraulic "circuits" and can operate 3 circuits (which may be dual cylinders -as in the case of the loader lift or bucket cylinders).
The thing is....unless you buy the hydraulic valve systems when you buy the tractor....it can get pretty expensive. SAVE FOR THE SINGLE PAIR OF REMOTES WHERE YOU ALREADY HAVE THE VALVE AND A KIT TO INSTALL SAME IS RELATIVLEY AFFORDABLE. (this is why a splitter valve is often more palatable to many owners).
Hard to write this stuff.....and I bet its also hard to absorb. But you asked.
Tractors do not typically come equipped with extra hydraulic couplers (also called "remotes" and other things). In order to operate a hydraulic cylinder or a hydraulic motor you need to have one PAIR of hydraulic couplers - one for the fluid to go out.....and one to let the fluid go in. You also need to have a valve to operate the pair of remote couplers.
I think most of the tractors of recent times have a hydraulic pump as standard to get some fluid pumping thru these remotes HOWEVER the tractor companies don't always make it easy to tap into this hydraulic pressure (the fluid is typically common fluid with the transmission and rear 3 point lift). Therefore.....sometimes you need to buy and have installed various kits that allow you to hook up one, two, or three hydraulic remote (pairs of couplers) and valves to operate these remotes.
It can and does get quite expensive if you want multiple hydraulic circuits. Sometimes the guys that want (need?) more hydraulic circuits will install a splitter valve....which will allow two or more systems to operate depending on a choice made by the operator. So....this would allow one hydraulic line feeding into a splitter valve which and be electrically (or manually) controlled by the operator to have multiple hydraulic choices via the same valve. A common one for John Deer is called a "Fasse Valve" and you can google it and learn more. (I have considered one of these....but I get along with one pair of remotes.)
So....after you have the needed valves and couplings.....you then need to route the hydraulic fluid to your hydraulic operating cylinder(s). This can be done with hose or with "hard lines". John Deere offers a neat hard lines kit (wich also includes some flexible hose.) John Deere also has ONE remote valve as standard on their tractors in the 30 series. Therefore.....it is fairly economical to run ONE PAIR OF HYRAULIC REMOTES.....but more are gonna cost you substantial dough....therefore folks use things like a "splitter valve" or a "Fassee Valve" as said above.
I like the JD hardlines kit which will route the hydraulic lines to the front of the loader (and even has couplers at the point where the loader is removed - same as the couplers at the joystick). Thus......you can plumb a grapple and operate it via the "selective control valve" (which is already on the 30 series tractors). With the "quick couplers" you can use your grapple cylinder.....and within a few minutes disconnect the grapple and use your dirt bucket (and/or use the hydraulic circuit for other purposes).
I sometimes think I am going to buy a cylinder to attach to my landscape rake so I can change the angle of the rake from the tractor seat......but I never seem to get this done. If I bump into a cylinder and hoses at an auction I may buy it .....but it's not a huge deal to me. (and I am kinda cheap?)
When I put my Stump Grinder on my tractor......I have somewhat of a plumbing circus taking place. I use the Joystick and the loader hydrulics to operatate the swing and elevation cylinders on my stump grinder......and use my rear remotes to power the lift cylinders on the loader (I don't have any grapple or bucket curl functions available at this point....as I am using those to run the stump grinder and to lift the loader) IN TOTAL I HAVE THREE Hydraulic "circuits" and can operate 3 circuits (which may be dual cylinders -as in the case of the loader lift or bucket cylinders).
The thing is....unless you buy the hydraulic valve systems when you buy the tractor....it can get pretty expensive. SAVE FOR THE SINGLE PAIR OF REMOTES WHERE YOU ALREADY HAVE THE VALVE AND A KIT TO INSTALL SAME IS RELATIVLEY AFFORDABLE. (this is why a splitter valve is often more palatable to many owners).
Hard to write this stuff.....and I bet its also hard to absorb. But you asked.