http://www.tractorbynet.com/forums Discuss all issues relating to hydraulics in this forum. en Sat, 21 Nov 2009 00:39:36 GMT vBulletin 60 http://www.tractorbynet.com/forums/images/misc/rss.jpg http://www.tractorbynet.com/forums http://www.tractorbynet.com/forums/hydraulics/157844-suggestions-testing-valve-seat-power.html Fri, 20 Nov 2009 20:38:38 GMT I have a JD 2240 tractor for which I'm rebuilding the power steering. I've had it posted in the repair section. http://www.tractorbynet.com/forums/p...g-rebuild.html Someone over there suggested that I pose the question in the hydraulics section for ideas on how to test the valve seats in the upper and lower valve assemblies for leakage while I have it apart. I have pix of everything including pertinate pages from the tech manual in the other post.

Anyone have any suggestions? ]]> Hydraulics dcyrilc http://www.tractorbynet.com/forums/hydraulics/157844-suggestions-testing-valve-seat-power.html http://www.tractorbynet.com/forums/hydraulics/157831-possible-back-pressure-problem.html Fri, 20 Nov 2009 15:57:23 GMT I have an old JLG boom lift, 40F, that had one bank of propo controls, one bank of regular directional solenoids. The Racine proportional controls... I have an old JLG boom lift, 40F, that had one bank of propo controls, one bank of regular directional solenoids. The Racine proportional controls had many issues when I bought it, couldn't get anyone to fix it, so I replaced the 4 valve bank with a generic set of Hyvair 12v D5 4 way valves. They are not proportional, so I put an adjustable dual direction restrictor valve on one side of the boom swing motor, to prevent big movements. The valve going to the drive motors has port A and B normally tied together,type F, in case the motor tried to freewheel to a stop (hydraulicly released brakes normally stop it instantly).

The hydraulic filter is now a generic return line filter sized for 25gpm, I think, returning to the tank. Originally, it had a high pressure filter going to the propo valves, but no element in it! I put a new relief valve on the new bank of valves turned up slightly from 1500 psi. Anyway, this set up was working fine, and I noticed over a few hours of use that I would have to blip a function from the OTHER bank in order to get the main boom holding valves to allow the boom to go up or down. When this happens, you can hear the valve for the boom shift, the relief goes into bypass, and nothing further will happen until I momentarily blip something like the platform level or the telescope function.......then the boom moves with absolutely no problem, up or down, no strain on the motor, even at idling speed. I thought it must be the holding valves, which are hard to get to, and require lifting up the boom to access, with associated peril.......then the boom swing function started doing the same thing.

I haven't got a gauge mounted, but used one to test it, and all was well, initially. The rat's nest of hoses that I've put everywhere precludes easy access to the return filter, but changing that is on my list of things to try. After reading a lot of info here on the forum, I'm wondering if my choice of valve manifold or valves may be causing this problem. I used a parallel bored aluminum D5 block to hold the 4 valves. The 2 functions that are getting the cylinder holding valves stuck are Hyvair type B 4way valves. I'm sure the valves are working right and are happy with the current. I am finding it hard to believe that all the holding valves are bad, then suddenly work when I momentarily hit the controls on the other bank of controls. The kicker is that the other bank of controls is plumbed to a separate section of the 3 section pump, and has it's own dump valve. It returns through a Y to the tank.

OK, I don't know the plumbing of the old Racine valves, nobody else around here could help me with that, but I do know that it seems to be a closed center design, with the flow from the pump/bank in question going straight to a dump valve, normally dumping back to tank. All the dump valves have more than one thing Y'd to them on the way to the tank, such as case drains.

Some specific questions: Would it matter if my valves were normally connected pressure to tank, since the dump valve only pressurizes the block when energized along with a valve command?
If I energized the dump valve slightly before, or slightly behind the valve command, would it solve this problem of the holding valves not letting up easily? (at the moment, they are on double pole switches and theoritically actuate at the same time).
I am trying to get ideas for troubleshooting when I get home from this long business trip, and hope that someone with experience at holding valve anomolies could help. Thanks! ]]> Hydraulics FLHayman http://www.tractorbynet.com/forums/hydraulics/157831-possible-back-pressure-problem.html http://www.tractorbynet.com/forums/hydraulics/157813-size-engine-pump.html Fri, 20 Nov 2009 04:50:24 GMT I want to upgrade the hydraulics on a 2 cu yd concrete mixer I have. It currently has a 24 hp engine driving ? pump and ? motor (the ? parts are... I want to upgrade the hydraulics on a 2 cu yd concrete mixer I have.
It currently has a 24 hp engine driving ? pump and ? motor (the ? parts are painted over)

I want to upgrade to a 35 hp B&S Vanguard engine. I want to upgrade because the mixer stalls under certain conditions and, like Tim Allen, I figure 'More HorsePower". From my calculations I figure I could drive a 17 gpm, 3000 psi pump.

If this is correct I then have to find a motor to go with this pump.

I have not found a good guide on line so I turn to the experts here.
Advise most appreciated.
Rgds,
tim ]]> Hydraulics jaquetarr http://www.tractorbynet.com/forums/hydraulics/157813-size-engine-pump.html http://www.tractorbynet.com/forums/hydraulics/157798-hydraulic-650g-satoh.html Thu, 19 Nov 2009 22:23:31 GMT Manual says takes type 120 hyd fluid .92 qrts. Any one know what type 120 hyd. fluid it? Manual says takes type 120 hyd fluid .92 qrts. Any one know what type 120 hyd. fluid it? ]]> Hydraulics taylornick http://www.tractorbynet.com/forums/hydraulics/157798-hydraulic-650g-satoh.html http://www.tractorbynet.com/forums/hydraulics/157793-hydo-pole-saw.html Thu, 19 Nov 2009 19:45:06 GMT Provideing the flow of the tractor is adequate, can you run a hydraulic pole saw off a full detent remote valve without any further valving? In... Provideing the flow of the tractor is adequate, can you run a hydraulic pole saw off a full detent remote valve without any further valving? In other words, is all the necessary valving contained within the pole saw? ]]> Hydraulics Couple of Achers http://www.tractorbynet.com/forums/hydraulics/157793-hydo-pole-saw.html http://www.tractorbynet.com/forums/hydraulics/157701-hydraulic-motor-ram-one-circuit.html Wed, 18 Nov 2009 18:35:50 GMT Hi, I am building a tractor mounted PTO driven Circular table saw. I am mounting a conventional hydraulic log splitter underneath the saw and would... Hi,
I am building a tractor mounted PTO driven Circular table saw. I am mounting a conventional hydraulic log splitter underneath the saw and would like to fit a hydraulically driven conveyor to handle the split wood.
The tractor is a 70 hp Ford 6610 and has an open centre hydraulic system.
After alot of searching I still can't figure out how to plumb in a circuit for the Conveyor hydraulic motor.
Is it possible to plumb the Splitter ram and motor to the one supply? or do I have to use one spool valve on the tractor to supply the Log splitter Spool valve and another separate spool valve on the tractor to supply a spool valve for the conveyor hydraulic motor?
I have searched through alot of Threads here but can't find a solution.
I would really appreciate any link to a website or help that anyone here can give me.
Thanks for looking. ]]> Hydraulics Hows she now http://www.tractorbynet.com/forums/hydraulics/157701-hydraulic-motor-ram-one-circuit.html http://www.tractorbynet.com/forums/hydraulics/157691-bobcat-backhoe.html Wed, 18 Nov 2009 16:45:51 GMT i have a older backhoe that has six control valves, two for downriggers and four to control the hoe, i would like to switch it over to the two wobble... i have a older backhoe that has six control valves, two for downriggers and four to control the hoe, i would like to switch it over to the two wobble sticks for controling the backhoe, anyone have a sugestions on the way to get it done? can a guy buy the wobble stick controls and adapt to what i have? ]]> Hydraulics tom r http://www.tractorbynet.com/forums/hydraulics/157691-bobcat-backhoe.html http://www.tractorbynet.com/forums/hydraulics/157633-backhoe-question.html Tue, 17 Nov 2009 23:43:42 GMT Hi, I have a Woods Groundbreaker 8' backhoe on my Ford Model 1920. It is getting its hydraulic feed from a rear remote port on the tractor; when I'm using the backhoe I have to lock the rear remote control in the open position to operate the backhoe controls. This was the recommended setup according to the salesman...

Here's the odd thing I notice, especially now that I'm getting to be a bit more proficient with the backhoe: of the two joysticks that control the backhoe main operation, only one can be non-centered and respond at a time. That is, if you try and extend the first link (left control) while extending the second link (right control) only one action occurs (extending the second link). The net result is that I can't seem to get smooth motion of the whole assembly - everything has to be done in discrete steps that are dictated by moving the controls separately. This is not what I see the operators on Real Equipment doing!

Within a single control I can do multiple actions - it will curl the bucket while pulling in the second link, since both of those use the right hand joystick.

So my question is, is this likely the intrinsic nature of the Woods backhoe? Meaning that the two controls are in series? Or do you think it is just due to the way that this particular unit is plumbed to the rear remote? Not enough flow? Thanks in advance for your thoughts,

Kurt ]]> Hydraulics rootytoot http://www.tractorbynet.com/forums/hydraulics/157633-backhoe-question.html http://www.tractorbynet.com/forums/hydraulics/157606-aux-hydraulics-grapple.html Tue, 17 Nov 2009 15:42:29 GMT I have a Farmall 45 I did not get any remote with the tractor nice going. :o Now I would like to add grapples to my front bucket to move brush. I... I have a Farmall 45 I did not get any remote with the tractor nice going. :o

Now I would like to add grapples to my front bucket to move brush. I am trying to find a way to add them with out paying the dealer price for a kit.

There must be a way to add them and use the factory spots for the aux. I am looking to use the spots on my fender were the factor levers are, if that is possible.

Later I would also like to add one in the back for 3pt equipment.

The problem is I have more time than money common right.:D ]]> Hydraulics sparker133 http://www.tractorbynet.com/forums/hydraulics/157606-aux-hydraulics-grapple.html http://www.tractorbynet.com/forums/hydraulics/157577-relief-crossover-valve.html Tue, 17 Nov 2009 01:57:25 GMT I have a Curtis snow plow that attaches to my FEL. It has a crossover relief valve from the factory. I contacted Curtis for the valve relief... I have a Curtis snow plow that attaches to my FEL. It has a crossover relief valve from the factory.

I contacted Curtis for the valve relief setting on my plow. They said that it is set at 1500psi at the factory. I then asked them if it could be adjusted. They said that I could turn the allen head plug to adjust the relief, there is a spring behind the plug that compresses. One turn equates to approx. 100-200 psi. Next, I asked what the max PSI setting is on this valve. They said that the allen plug could be turned all the way in and then have no relief but it could damage the hoses and/or tractor.

Does that mean that I could potential achieve 3500psi relief from this valve? ]]> Hydraulics jgbanshee http://www.tractorbynet.com/forums/hydraulics/157577-relief-crossover-valve.html http://www.tractorbynet.com/forums/hydraulics/157573-ford-1220-3pt-log-splitter.html Tue, 17 Nov 2009 01:46:27 GMT I have a ford 1220 and am considering purchasing a 3pt log splitter fron tractor supply. First of all anyone know if a 1220 has the power to do... I have a ford 1220 and am considering purchasing a 3pt log splitter fron tractor supply. First of all anyone know if a 1220 has the power to do this? The ad says it is for a cat 1 or 2 tractor. I dont know what cat tactor mine is. (that could be a show stopper)
I went to my local New Holland dealer and they had a 3pt hitch spitter that they said would work on my 1220. He didnt seem very knowledegable..very unconvincing.

So I am up in the air looking for advise.

Thanks! ]]> Hydraulics ford351c http://www.tractorbynet.com/forums/hydraulics/157573-ford-1220-3pt-log-splitter.html http://www.tractorbynet.com/forums/hydraulics/157525-power-beyond-kit-755-jd.html Mon, 16 Nov 2009 14:28:36 GMT Well I bit the bullet and went for the farm on the P/B kit, but in a way it was worth it. The instructions are very clear and detailed , like where... Well I bit the bullet and went for the farm on the P/B kit, but in a way it was worth it. The instructions are very clear and detailed , like where that diverter plug go's ( would have scratched my head for awhile on that one) anyway anybody else wanting to do this ( power beyond ) on the cheap I can help you with the parts list and sizes and where everything fits. Hope I can save the next guy the 250 bucks ]]> Hydraulics Kevin M http://www.tractorbynet.com/forums/hydraulics/157525-power-beyond-kit-755-jd.html http://www.tractorbynet.com/forums/hydraulics/157471-what-size-quick-connect.html Sun, 15 Nov 2009 20:16:30 GMT I am trying to find a female quick connect coupler for my kubota bx2660. The ones that are on my loader have the following #'s IT BF 15-04 1/4" NPTF k08
I cant find a cross reference for it and i'm not sure what the numbers mean, any help would be great. ]]> Hydraulics gjock http://www.tractorbynet.com/forums/hydraulics/157471-what-size-quick-connect.html http://www.tractorbynet.com/forums/hydraulics/157464-hydraulic-coupling-types.html Sun, 15 Nov 2009 18:52:32 GMT I have an old Ford 1200. I want to get a log splitter to hook on 3point system but am having trouble identifying the original hydraulic coupling... I have an old Ford 1200. I want to get a log splitter to hook on 3point system but am having trouble identifying the original hydraulic coupling fittings on the back ? Any idea what size and type came fitted to the Ford 1200 ?

Really could do with some help on this many thanks in advance. ]]> Hydraulics Sheena http://www.tractorbynet.com/forums/hydraulics/157464-hydraulic-coupling-types.html http://www.tractorbynet.com/forums/hydraulics/157403-pressure-relief-valve-problem.html Sat, 14 Nov 2009 21:53:15 GMT Hello All

I'm trying to help my brother troubleshoot a fail in the backhoe arm of his '92 JCB 214.

While in use, he lost the ability to swing the boom from side to side. All other rams are working fine (ie he can extend the arm out, etc.) With the machine shut off, he can manually push the boom from side to side. We took out the pressure relief valve and nothing obvious stood out and all bits appeared in check.

If anyone has any suggestions and/or anything we can check it'd be greatly appreciated! :D

Thanks!! ]]> Hydraulics Enginerd http://www.tractorbynet.com/forums/hydraulics/157403-pressure-relief-valve-problem.html