Do you guys hear that noise? That's a hydraulic wine. That's what we're gonna talk about today, whether that's normal or abnormal and what you can do about it. As always, we're sponsored by Borough wheels spacers. They are made in America. Have a lifetime warranty. If your tractor feels tippy. Side to side, especially if you have a cab on it, then adding a set of wheels spacers can make a big difference. Get more information on them at the link down below. And so recently my memory was jogged. Well actually my memory is jogged every time I get in this machine because I hear it after a little while of using it. But I had a viewer reach out and asked if I was having a similar issue as he was and a lot of other Kubota M4 owners were having as well. And there's a certain hard to trace, hard to pinpoint. I'm sure how to correct hydraulic wine that's coming from the machine that is very high pitched, very annoying and we're not sure what to do about it. Quiet. Don't feel like talking today. So I'm going to touch on that subject in particular more a little bit later in this video. I actually just got off the phone earlier today with our local Kubota dealer to try to pick their brains, see what they knew about it as well. But first a common question is, is this noise okay? That's coming out of my tractor and a lot of the tractors, most of the tractors that my viewers use are subcompact and compact tractors and they're going to have hydrostatic transmissions. Meaning there's no gears that you have to change. You just push a foot puddle down and you go forward or reverse. And I'm sorry, I'm a little distracted because it is April 26th or 7th something like that in Michigan here right now and it is like spitting rain. It was hailing earlier. It's 39 degrees right now. There's hardly anything that's greened up yet. This is just this is tough conditions. So I'm a little distracted and to make matters worse, it is turkey season right now. And I just had a notification on my Spartan Trail camera that on the far side of the property, there's a big old gobler hanging out right now as we stand here shooting film. Regardless, the show must go on. So as I was saying, most of you guys watching this channel own a subcompact or a compact tractor. But the same can be said for even my big old skits here, I have over there. There's a certain level of certain amount of hydraulic noise that's coming out of the tractor, out of the machine. You have an engine that's driving hydraulic pumps that are moving hydraulic fluid through lines through the pumps through the system through cylinders and rods, hoses, fittings, everything else. And so there's a certain amount of chatter or noise that occurs because of that, which is completely normal. So the hydrostatic transmission is not the only part of the hydraulic system on your tractor. There's a lot of other components that are coming into play. If you have things like your hydraulic steering system, your three point hitch, your front end loader, any extra remote setter on the tractor. So there's all sorts of different components that are all working together, maybe not all being used at the same time. But that's how it becomes more complicated to diagnose an issue. And most of the time it's going to kind of fade out into the background noise of the engine and everything else that's going on. I will say that cab tractors do tend to be a little bit noisier than open station tractors. I think some of that sound just gets trapped inside the cab kind of bounces off, echoes off the glass or whatever else happens. Certain models are a little noisier than others. But for you new tractor owners out there, you may not know otherwise. And so a little bit of noise is completely normal. Now there are a few ways that you can spot a problem or at least maybe early on identify if you have a problem. So if you are brand new to tractors or to machinery in general and you happen to buy your tractor brand new, well then you're going to have a pretty good baseline to know what your machine should sound like. So you're going to know right out of the gate what normal operation should sound like, assuming there's no factory defects. So if you notice a sudden change in the noise of the volume of the frequency or the pitch or whatever else it is, it's going to be a lot easier for you to tell that there's something going on. Now if you bought your tractor used like I did this cabota right here behind me, well out of the gate, well it only had 50 hours on it, but still out of the gate, it acted like this, right? It had this strange hydraulic wind, this hydraulic noise to it that I wasn't sure if that happened when it was brand new or not or if it's something that only happened after I got it or somewhere in between. And so it was one of those things that was on my mind like, I don't think this sounds right, it doesn't sound horrible, doesn't sound like anything's breaking or going wrong right now. Am I just kind of making this up in my head or what's going on? So that's when I got that email just yesterday from a viewer who said that a lot of other folks are having these issues. Here's a forum thread that he sent me that's all about this issue with a lot of different folks having it. It seems like there's maybe some ways to kind of narrow it down to the potential causes of this problem, but it is still not set in stone. There is no service bolt in that's been put out by Cabota. If you do read through that thread, you'll see where there is a potential solution in the works that Cabota engineers are working on right now, nothing that's been put out to directly solve the problem. Now it seems like it may revolve around the four wheel drive system and breaking. So if you engage the breaking, it seems that it may be tied into the hydraulics, which then do this squealing, winding type of noise. However, I have not had this issue when I'm breaking. It is, I feel like when I'm using the loader after it's been operated for a while, maybe if I'm changing gears, if I'm accelerating with the, or if I'm increasing the throttle control, it just doesn't seem like there's any rhyme or reason to it. So I'm not sure if that is a root cause yet or not, but they're working on it. So the verdict is still out on the solution for the Cabota M4. I'm sorry, I don't have that answer yet. If you guys get it before me, make sure you reach out and let me know and I will do the same for you. But whether you have this model attractor right here or a different model that's having some hydraulic issues, a few things that you can check or look into are going to be the following. Now the first one is going to be called cavitation and this is when you have air gaps or air pockets in your hydraulic system somewhere. So it's just a whole line of fluid that's going through and then there's a big air pocket there. This is going to introduce noise along with some other issues and if it's a long term problem that you have with cavitation, you probably have a bigger problem going on with your tractor. You could also be really low on hydraulic fluid. So that's one of the first things you want to check after your tractor is cooled down, you don't want to check it while it's warmed up. But check it when the temperature is cool, see if you need to add hydraulic fluid or not. And if needed, it could be an expensive proposition, but you may need to do a complete hydraulic system flush, refill your system and see if that solves the problem. Another reason for cavitation besides low hydraulic fluid levels could mean that there's a blockage somewhere in your system. And honestly, this is a little bit more common when a tractor is new and fresh out of the factory. You know, there's a magnet inside part of the hydraulic system to collect metal shavings from the factory when everything was cut and assembled and everything else. And sometimes they don't get cleaned out as well as they need to be. So this is something, and one of the reasons why a lot of different manufacturers will recommend doing a hydraulic flush early on is to get rid of all of those metal shavings and the foreign debris that's in there out of the factory when it's fresh. So that's another good reason to give your system a flush. Now something related to cavitation, but different is called aeration. And that is when air bubbles are introduced into the system. And this is typically through leaks that are in the system somewhere, maybe in a pressure valve or a seal somewhere in that kind of a location that you may also have a leak or a drip noticeable as well, but it's allowing air to get introduced into the system. The little tiny bubbles that's going to interrupt that hydraulic flow and cause a similar problem. The next one is just simply broken or malfunctioning parts, things that are breaking down on your hydraulic system. And this could be involving your hydraulic pump itself. It could be weak hydraulic hoses or lines that are just starting to decay and break apart. It could be in seals, it could be in bearings. It could be in those pressure switches and other controls that you have in your system as well. But if these things aren't functioning properly or they're starting to break down and wear down, this could introduce and be a good visual indicator for you that some services needed on your hydraulic system. And a really sneaky one that happened to me that I thought was an indicator of something major that was happening was when I started to hear a really loud whining noise out of the blue on, I think it was one of my 4066R tractors that I had a while back. Now I'm not a mechanic myself, but I went through the simple troubleshooting tips that I could do. I couldn't solve the problem so I took it into my John Deere dealer. And they were able to actually trace that noise to a line that was making contact with the metal surface and reverberating that noise all throughout my cab and making it sound like it was a way bigger deal than it actually was. Now I don't know how that line shifted the way that it did, but the technician was able to just relocate that line, make sure it was separated from the metal part that was contacting. So that seemed to solve the problem. There was no major issue going on just had a noise noise. The one that I've had happen on a handful of tractors over the years and you will notice some reduction and capability is if you raise your 3 point hitch all the way up as high as it can go, you may start to hear a really weird hydraulic noise or hydraulic sound that's coming out of the back end of your tractor, you may have some limited functionality with the rest of your hydraulic system as well. Now I don't know exactly what the terminology is called, but when you max out the lift height on your 3 point, I just certain miles. Maybe a John to your 3320 happened to a long time ago. I think there was a Kubota as well, but it's not across the board, but if you raise it up all the way, you're going to lose some of that functionality, get a really weird noise, things aren't going to work like they should. So just lower that hitch just slightly and that'll solve the problem. And lastly, for you hire our tractor owners out there, it could just mean that your hydraulic system is time for a rebuild, right? Everything has a useful life, your hydraulic pump could simply be wearing out. The components could simply be wearing out. All the hoses, everything just all that once or slowly over time I should say where it's just time to do a rebuild. You got that older tractor cheaper or you ran it as long as you did and you've had a good run with it, but at some point everything needs to be rebuilt, revamped, refreshed, and your tractor could be telling you what you need to do. Already folks, that's going to wrap it up for us today. Hopefully that sheds a little light on the subject for you. If you have other tips, other things to look for that could help other viewers watching this video, then make sure you leave your comment down below to let us all know. Now here are good works, tractors. We sell and ship tractor attachments all over the country. So if you're looking for something for your front end loader or your three point hitch, we're happy to help. Make sure you check out our website, goodworkstractors.com. And if you did enjoy today's video, we'd love to have you tag along, hit that subscribe button right down below to see more videos. I want to thank you for taking time out of your day to stop by and until next time stay safe, we'll see you soon.