Power Beyond Hydraulics for Oliver Tractors

hello welcome back today we are going to be adding power beyond to this oliver 1650 this applies to almost all the 50 series uh basically any oliver with open center hydraulics if your filter's here you've got open center hydraulics if you cover like this but i thought i'd go over how this system works and what makes it open center and everything and what we're doing here before i start pulling plugs and everything and your reservoirs down here your dipsticks here and the pumps submerge down into oil inside of there and so uh there's gears that come up from the shaft that drives the pto come up here and drive the uh pump it's pump is actually right on the other side of this cap here and the intention of this cap is a second pump could be mounted i've never seen it done but i've talked to guys that were around back in the day and saw one or two of them done that way about a second hydraulic pump on the front here uh it would have to be compact to miss the shifter but anyway so pumps in there pumps oil up and over here on the other side is the relief valve that one right there okay here's the relief valve and all it is is a spring and a plunger and some shims to adjust it and uh when it's set properly most of these uh 50 series where 2050 psi and then it starts opening and that's to prevent from too much pressure building up in the system so it's a safety device so from there there goes into the filter come back around the other side okay you got this here is a filter bypass so if your oil is really cold and thick and it can't push through the filter it will bypass it so you still have hydraulics and then the book shows you've taken this plug out to drain the hydraulic system and let's just say that's a pain in the butt don't even mess with it because usually these plugs are in there pretty darn tight um just get a hose to go into a coupler on the back an open-ended hose with a tip on the other end and plug it in and just hold the remote lever back and when it starts sucking air you're empty and shut the tractor down that's the best way to pump them down in my opinion so anyways you got your filter bypass and if you don't change your filter often enough it can crush down and then it'll bypass the filter and you're pumping dirty oil around and around and around so change those filters from there it goes back comes into this the priority flow divider this is for the steering and there are two plugs on here there's this one which is the pressure setting and the old saginaw steering unit was a maximum of 1500 psi early steering unit or these were down around 1200 and they did boost the pressure up to 1500 later on there's different colored springs to for different pressures and if you want to check it there's a plug right here you screw up gauge into that and run the tractor and see what pressure you're reading you got to steer it at the same time to generate or to get the resistance steer it all the way to the end and that'll make the pressure kick up and then if you need to add or remove shims you take this cap off and do that so it comes into this and then on this back cap is a spool and that's your flow divider this divides out five gallons per minute roughly to go to the steering just go down here goes onto the floorboard goes up in the dash for the steering and the open center tractors then goes up to the oil cooler in the front and then returns back to the reservoir right here and sometimes if your steering all of a sudden doesn't work this spool here which is taken out by that cap in the back there can get a fleck of something in it and get stuck and it will uh keep the oil from going to the steering so an easy way to check if that's it is hold a remote lever back or forward or whatever deadhead it so that the pressure builds up uh you got to have nothing hooked to it or at the end of a stroke of a cylinder or whatever but that'll create enough pressure to open the relief valve and that back pressure will push back through this priority valve and push oil to the steering and so if you get steering while you're holding one of those levers back and creating back pressure then it's a safe bet that this spool in here is stuck you just need to take that cap off the back and i do believe it's a threaded spool where you can thread a bolt into it and pull it out and then buff it up and clean it up make sure it slides smooth in the bore and then put it all back in with the spring and everything the way you found it took it apart that could be a video for the future but what that spool does is the oil all the oil comes into here and it makes sure this gets the first five gallons per minute roughly sends it to the steering and then whatever's left over if there's enough flow it pushes that spool back and it goes in and comes into the cover here now this is a good way to tell if your hydraulic pump is getting worn because you'll hit have a case where maybe uh you gotta rev up to 1200 or 1500 rpms to get the rest of your your three-point your remotes to work but the steering works all right well that means this valve is actually doing its job because it will shut off the rest of the hydraulics to make sure your steering has oil pressure as a safety feature and so if your pump's weak enough that it can't generate the 1500 psi that this is relief valve is set at and is demanding all five gallons of oil to make that kind of pressure it shuts off the flow to everything else to make sure you can still steer and when you rev the tractor up the pump output increases and you get to where you're putting through more volume and then that spool can shift and start delivering some to the three-point remotes so it's a pretty safe bet if you're um if you're getting that where you don't have anything but steering at a low rpm chances are your pump's getting tired especially after the oil warms up it could be a low pressure on the relief valve and that'll probably be another video to discuss how that works but so oil comes from the priority valve back into the hydraulic unit here goes back feeds the remotes comes across goes back down to feed the three-point hitch and then from there it returns to the hydraulic unit or the reservoir and that's all internal so what we're going to do is bypass that sort of so i got to take this plug out because just behind it is where the oil comes up in and goes back and i also have to take this plug out this one is going to be where my pressure comes out to go to my loader valve and to keep the oil from going through its normal way there is a 3 8 pipe plug threaded holes back in here and you stick that back in put that 3 8 pipe plug in and that blocks the oil from being able to go from this point to that point so now it has to come out here go to your loader valve and then when it returns your loader valve you put it back in here which returns the oil to where it was going to go in the first place without that plug in the middle and it can go happily along its way to feed the remotes in the three-point hitch and on this particular valve we've got what we call a i don't know if you call it a dump valve but a waste valve but there's going to be three hoses in this setup and the third hose is just the fluid that comes off the cylinders off the not the pressurized side but the return side rather than trying to feed that into the pressure line that's coming back here and make for erratic loader work and and the remotes and stuff i'm going to return that essentially non-pressurized oil or low pressure oil back to the reservoir in this plug and only the pressurized oil that goes through the center of the valve will still feed through and go through here and that way we're not trying to feed low pressure return oil back in with a high pressure return oil that uh kind of makes things back feed and not work as good as you want so i've got the loader valve mounted this is a prince joystick loader valve capable of 25 gallon per minute and i don't even remember the pressure but more than enough uh that's plenty of gallons per minute for a tractor this size but the next best thing i was finding was down around 10 or 11 and i felt that was just a little on the tight side um any restriction causes extra heat and loss of flow slows down your hydraulics and stuff so i didn't take a whole lot more money to buy this better one which is also made in usa somewhere in there so for a little bit more money i got a good valve made in the usa with higher flow capacity single stick so we can run the bucket and the loader just one stick and a float action on the loader circuit that we're gonna put in there so essentially you can put the loader down and it will just float up and down over the ground instead of have pressure and this bracket here was already on the loader i believe this is a 1610. i'm trying to remember allen said he uh looked in the manual for what that was for and i don't recall but i had a piece of rod around hell heat that up bennett had my brother weld down this plate and pulled the valve on and now we've got a lever right up there um this is held in place with a set screw so if we want to move in or out for the operator or shift it's a little left or right or whatever just got to loosen that set screw and just shift it around a little bit and i say can move it forward and back a few inches and custom tailor it looks like it's going to work pretty slick hey look at that well one lucky this particular plug and usually the factory ones are just uh it's a 3 8 square hole you put your 3 8 drive ratchet or extension in it and screw around out i'm wondering if this one had been out before in the past but let's see if the other one wants to cooperate as well no no it does not [Music] okay be good to me come on well i don't want to break my ratchet i don't really want to have to put heat to it either well with a big enough persuader went with a half inch ratchet or the reducer down to 3 8 and a big old cheater bar and it's [Music] turning take this off i think [Music] well got her i was beginning to wonder there that one was in tight and i got that one loose so now i just need to find a 3 8 plug to put back in that hole then we gotta measure and make hoses to reach that loader valve i pointed out before and i wanted to get the loader valve mounted so we knew how long the hoses to make okay i got the plug out and it's kind of hard to see in there but there are 3 8 pipe plug threads in there as i mentioned earlier so i got plugged with a allen socket type pull it off but because uh tried one with a square head that sticks out and the socket drives that wouldn't fit in the hole you almost need something like this so that you got to be able to drive the thing then you just stick her back in there i'm not even putting any kind of pipe sealant on it because it's not going to leak externally and so if a little bit seeps through it's really not the end of the world and i don't need a excess pipe sealant getting in the hydraulic system so uh it really shouldn't be an issue i'll just snug her up don't need to crank it down super hard like some people do to where it never comes back out again that ought to be good i mean there socket came out with all the pieces it went in with plug is in there so now when the oil comes up from the priority valve it can't go back to here to feed everything else and that's why we have to have our hose for our power beyond go out and then eventually return back to here to bring the oil back into where it would have normally been so that's the that's the gist of it but we'll we'll have more what we do as we do it okay we're gonna drain the hydraulics down because uh the one return line goes in the side up in there and it's below the level in the hydraulics so we don't need oil going everywhere so we've got a bucket here to clean bucket and i just have a hydraulic hose i keep a tip on and open on the other end and just plug it in and i'll have allen get up there and start tractor up and uh hold the lever back and when it starts sucking air shut the tractor off and and we got our pump down or if the bucket gets full which shouldn't get ready yep see if the battery cables are on good now [Applause] powerband's working the three-point hitch came up right pull that inside lever other way right level my bad other way other way there we go but it sucks air be ready to shut it off well there's nothing coming out so it must be done i'll go ahead and shut her off usually it gets a little more whiny than that when it's uh yeah i was listening real carefully the old close center tractor you'll hear them and you shut them off right away but this one uh usually you kind of hear some noise but didn't seem to but anyways um so that's dripping into the bucket there i guess we could just disconnect it like that and then put the cap back on and keep any dirt out but the good news is is uh my temporary plumbing for power beyond worked i got it plumbed right um we used an actual oliver swivel right here um it's normally on a hydraulic right here so we could spin that in without um having her having room so that goes into the hose here goes up to the loader valve that's why the three-point hitch didn't come up right at first i had to push all the air out of everything that's probably why we didn't get a full closer to five gallons out because we had to fill hoses and stuff but the oil went up there to the loader valve and then came back in here and then once the air was pushed out three-point hitch came up and the remotes worked but we're gonna put this bypass type thing on because that will help with smoother and faster loader operation which requires a third hose and we're waiting for a fitting to show up but we can at least get the hose in there now that we've got the reservoir drained down so we'll do that next okay we got had to do a little heating there so we did a little repainting but that plug was stubborn but we got it out so we got a return line in so now we just got to go put the loader back on got all the stuff stitched up over here about the biggest thing i'm waiting for a fitting to come that's supposed to be here today for the uh right now we're using the bypass return is everything returned it'll work but it'll work better once we have the third hose hooked up i'll switch this one up here and then this one here will go there because this is the one that goes back to the reservoir and that's what this port does is just the return oil from cylinders it's lower pressure comes into this and so that should help make the loader work quicker and better moment of truth got the hydraulics all hooked up we're gonna see if the loader works and if we hook the couplers up in the right direction those would be easy enough to switch if we didn't but let's see is it in gear you now have a neutral safety switch that's right hell that one's right got the bucket backwards we can switch that is it i would have done it the other way but if that's the way you want it at that steer fingertip steering [Music] [Applause] [Music] well it's all hooked up right now we don't have the bypass hose worked up and it's actually working all right that way um don't know if it necessarily i'm gonna still hook it up when that fitting comes and we'll see if that changes loader performance but right now the loader seems to works nice and smooth no jerkiness still run the three-point hitch up and down while you're running the loader at the same time steering all that good stuff so that's the ins and outs of adding the power beyond say pressure out plug in there pressure return and then basically a bypass port yeah we've got the hoses all made and everything so i'll probably just hook that up and go with it anyways but we'll see how well it affects performance when that fitting finally gets here hell amazon came through got the power beyond adapter that's threaded in right there for this particular valve and so now this is the one that goes back to feed the high rest of the hydraulics on the tractor and then this is just the exhaust port for the cylinders on the loader and it definitely works better with it on that way uh before i couldn't do the bucket and the uh boom at the same time and now i can and also just acts like the loader cycles faster rev it up just a little bit and it was going up a lot faster than before so maybe i'll have alan get on and do a quick demonstration [Applause] so [Applause] [Applause] [Applause] there we go this tractor is ready to go go push some snow and scrape snow got a fresh clutch uh brand new saginaw power steering power beyond so you can have the blade working off the back and the loader on the front without switching things around hope you found this video uh helpful and enjoyed what you saw and we'll see in the next one thanks for watching you

Channel: That Oliver Guy - Chris Losey

Views: 17,856

Keywords: oliver, tractor, farm, white, equipment

Id: 47VGAxFWmCw

Length: 24min 10sec (1450 seconds)

Published: Tue Nov 24 2020