BDU-10 Overhaul Kit
2513013
0:01
Ah
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[ __ ] How are we going to put this together then? Okay, I'm working on a hydrostat
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here and this one is a bit special. It's called that or yes special special. But this is how they always did it in the past
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that you had a unit that was the actual uh speed control, so that
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the hydrostart part and then it's kind of bolted to a shaft that's the differential.
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So this is one unit and then underneath it there's another unit. So you can see a little bit that like there's one and
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there's one. Most hydrostats these days are a single, built-in unit.
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And this was, you could say, a way that was done before. The problem that I have with this
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is that partly it's a bit weak. I don't think it pulls forward as well as it should and it actually gets a bit
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weaker when it gets warmer and also the oil gets very dark very
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quickly. Another thing is that it is extremely difficult to adjust it so that it
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stands still when you have, so to speak, released the uh uh pedals that are here in front
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there. There we have the pedals that you drive forward and backward with. The uh everything wants to go
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forward or backward. And what you have to do is change the length of this rod here and then so to speak
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change this. This is the actual front and rear adjustment that sits here that goes in there. So I'm going to take
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out this hydrostat and see if I can find what might be wrong inside it. I actually found a problem
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yesterday and it was that this one had come loose from here so it was completely
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loose. And it was when I put it back that I got a lot of the speed back. But I still want to open it up
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and see if I can see any other problems.
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H
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so that it works.
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I took the hydrostat in, so small and handy, and cleaned it with dish soap and
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hot water and it turned out really nice.
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H
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But look, it's good as hell.
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Oh my god
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So
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there. The first thing we're going to check is these check valves. There's one on that side and one on that side. Every spring
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and this little ball is
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all hm Mm. Can we take these instead?
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Ah.
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Both the springs and the balls here were intact and fine So we'll look a little further
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in. Hm.
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Х
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Hm. There's a good place here and pry it a little, I think. Should have had a
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very wide chisel here. Hm.
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Nah then we don't
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there's no passage there.
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Try this
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then. Ah. Oh. It works.
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Good there
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a little can
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A spring here.
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the gasket went to hell.
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Oh, the filter is
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completely
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Mm. Ah
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[ __ ] How are we going to get this together then? Ah [ __ ] Okay.
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Hm.
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Hm.
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Well, I'll have to start by ordering a new gasket and a filter.
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This filter looks too bad. I don't know if it's supposed to look like this.
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[Music]
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[Music]
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Okay, everything's cleaned. I've checked all the pistons and stuff and
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like that. And actually the only thing I can see that's a bit suspicious is a little
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a little scratch there. Here you can see
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it. It's not much
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but I can I can feel it like this with
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my fingernail. So I would have to flatten this surface a little bit. Uh otherwise
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most of it looks and be in good condition actually. Uh this filter needs to be replaced. So
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we're going to change the filter. See if we can flatten this. and uh fix a new gasket
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of course. I've received a package from the US and it's the gasket that's going to sit here and
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also the filter. So now it's time to sand this down and uh make sure to get
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it together. And I had originally thought that I would send this off to be sanded somewhere. But then I figured
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that no, we'll test it ourselves first because then it's a little more fun for you and see if it's possible to sand down a surface like this.
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Eh, because there are many who might not want to spend that much money on one like this. Above all, it's this little
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mark that I want to get rid of. But also this thing where you can see that there's a little bit of wear here. It's very little
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you can barely feel this with your finger. So to do this, I'm going to use wet sandpaper. First 400 and
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then 1200. I got some tips that maybe you should have 2000 but I can't find it. I got some tips
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that you could put it on a piece of ice and then put some
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oil on it and then you sand. And then I thought, I'm going to use my cutting board that I usually use when
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I work with carburetors. But then I feel like this, I feel like it's not really flat. And uh if I put it
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down here I can wiggle it a little bit.
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So I found another piece of glass. This is some kind of uh door to something. And here I feel like here is
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the flat thing that I don't know what. So I just have to work on it.
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Yeah.
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Hm. Don't be so easy.
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[ __ ] what a job.
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Okay.
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[Music]
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[Music] It feels like when I drove with
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flat here, it grinds the most out here and I don't know if it's the glass pane that bends a little or that it's Yes, but
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here's like a higher edge. So what I did now was I made holes in a 1200 paper and then I simply
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took this uh pump or whatever it is the engine part and stuck it through and
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then I put oil in between and then I can grind a little so
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It's going to be great.
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I don't know if you can see that much of a difference, but this mark that was here, it's a little smaller and I can't
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feel it really the same way. But yeah, no, if you want this to be completely 100 then
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you have to leave it. This was a real pain
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I can tell you. It gets stuck and comes loose and here and there. So I can't recommend this method on a soldering iron
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unless you're extremely patient and have a lot of time. Before I put everything back together
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I'm also going to remove these three and inspect them. And then it turns out
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that there was a quarter of an inch on these.
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And uh I was waiting for the gasket so I made sure to get a whole kit of these so that
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you have them when you need them. Here was just a plug and there was a plug. But I'll check that one
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too. Lug with gasket. Here you can probably drain the oil
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too
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maybe. Yeah. Yeah, that was money well spent. Didn't need it for anything. So I put some oil here
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and also on this part that sits here. This arm should sit. This is up.
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So this is how you adjust the front and back. It's simply that you change the angle of
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this
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part. There are two springs. A soft one and a hard one. And the soft spring
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should be here. And the hard spring should be on this shaft here.
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This one is this one is angled. I don't know if they see it maybe. It's always angled this one.
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The manual also says to check these springs. Look at these ones, they should be centered here in the middle. Eh, it
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you can move them a little
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here before you put them together
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it. Filter, spring.
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I've made sure that these this this that direction and that direction they will fit
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in here and here. So there it has to be there really can't be any oil in there because then it will be like hydraulic locking.
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H
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I was about to forget a super important thing.
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If you can guess what it was, you can write it in the comment. M.
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I probably forgot to say it, but I've checked all the holes here so that the threads that there's not oil or anything
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in those threads. Then it will be really bad.
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Oops. Hm. I don't like that one. A bit
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slow. I thought this one was a bit slow but I don't know. I couldn't
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see. There wasn't anything in it anyway. So we'll pull these a bit. Let
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see. We'll start here then. Yes.
35:15
Ah, that's going to be great. Eh, you should also feel these shoulders so that they
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move and that makes this one move easily. This one moves. We'll feel this one
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too. It's under a bit more tension so I couldn't get it to move
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manually. Yes, no problem. Eh, I've checked all these shoulders to make sure they can be moved. It
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goes a bit half-way but it moves. It moves and it moves. So it's perfect. Eh, I think that one is pulled.
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I hope so. Uh, I'm going to I'm going to tighten it up a little bit too. Check. Uh, but now it's
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time to put these valves in here. Check
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valves. M.
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If you can check here and you'll see that little ball is in here. And I think you can get to these from the side
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too.
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Here you fall down there. Wrong. Okay. So you shouldn't have
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it because then it ends
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here or it took
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away. There it was. Okay.
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[Music]
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F Okay. [Music]
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Ah, we'll put this in so we can get a little bit of a spin on this. Now we see that it doesn't leak in
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all
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cases. Exactly. What the hell? I have to clean. the threads there
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too. Hm hm.
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Everything is back except for this adjustment eh adjustment or whatever
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should I call the steering. But eh there wasn't much to complain about except for this one. It turns out that
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it was easiest to take it off, put the belt in the right
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place, screw it so that it was fixed without the spring then then and then tilt
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over this one because it was very difficult to get to and hold this one under if it was in this position.
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Otherwise there was really no no no strangeness. Eh, I like a little grease
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in it too because it was very dry and sounded
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bad. Okay, we'll try to start it.
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[Applause]
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[Music]
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А [Music]
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[Applause] [Music]
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[Applause]
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[Music]
45:01
Okay, I think it's time to test drive it a bit.
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So now we can
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[Music]
45:30
drive Yeah, I'll test drive it a bit here in the pasture I thought. But damn it got
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punched. Yeah. But it ran fine anyway.
45
BDU-10 Overhaul Kit
2513013
