This video is brought to you by spore'ln quality, integrity and tradition. Today's service calls on an exhaust fan. I was called out here told it me had a god-awful noise and when they reset the breaker, they said it was shaking everything downstairs. So right, when I come up here first thing I do is I spin, I pulled the belt off spun the motor and then I go to move the pulley and check this out.

Look at this. You guys see the player now. Let me try to hold it still without bearing like the bearing is destroyed internally, it's gon na be a mess. You can see the pieces of the bearing blew out back here.

It's not gon na be fun, so I was able to find the bearings I'm hoping that it didn't damage the shaft that it's just the bearing, because it looks like the bearing blew apart and then I went to go. Take out this and the set screw broke off, of course like a nightmare, so this is like a caller that presses in there. I can't remember the name of it right now, but luckily the sets group broke the screw that pushes it apart broke. So not the ideal thing, but I was able to take a dead blow hammer right here and give it some taps evenly all the way around and I got it to come off so now we're just gon na I'm cleaning everything up to make sure I can Get it all apart and then I'll go get the bearings okay.

So this is the bad bearing and here's the thing. It's really easy for you to jump on here. I'm sanding everything up and you just you want to do a lot of prep work. Yeah cleanliness is your best friend on this, so you want everything to be shiny, clean and smooth, but I prefer not to remove this bearing yet you've got to do this one first, because you need this shaft to stay in place once you move this there's gon Na be flex - and it's gon na be hard to get that off.

This is gon na be almost impossible to get this bearing off as it is, but you want to do that one first, so we're gon na undo there and then we're gon na try to break it. Free notice, I'm gon na try to slide it this way. If possible, so what I did was I remove the set screw and then you get on here and you use the weight of everything hold this really tight and move it back and forth back and forth. Now this is the locking collar.

This is only one step. Now we got to get the bearing to break free. That's the hard part. This is a locking collar style bearing so I prefer the double set screw style, bearings impossible, but anyways, let's see what we can do a little bit closer.

I got to say these Klein demolition screwdrivers. You can beat the crap out of them they're heavy and they helped me to basically disassemble that bearing to where I can get to this inner race right here and I'm gon na sand it and try to move it. Free, so we're gon na try to break this race free right now, and this is where the bearings wrote before. If I didn't already mentioned it's 110 degrees outside it's about 60 % humidity for us in California, it's freakin nuts right now, I'm not in the Coachella Valley working today anyways.

So what I did was I cleaned behind that race, okay and lubed it up and then very carefully spun the shaft and tapped that race that way onto the Queen surface. So I can clean underneath to this dirty surface, so I'm sanding it with the sandpaper. Getting a nice and shiny and then I'll grab it with the channel locks and twist it and pull it this way, and once I get that free, then I'm good to go get my other bearings, but I just wanted to make sure I can get this loose And free I'm not gon na break this one free. Yet until I get that completely free that way, it's holding everything stable.

So that way I can move around okay, so I was able to break it free and all that I did was use the weight of the wheel. So I can do this with one hand here, he's the weight of the wheel and turn this and slide it towards me and it's sliding towards me now there we go so now we got it free, we'll clean this up, nice and good, and then we'll have A surface to slide the new bearing on so I've got everything assembled just snug. These guys are just snug down I'm working on getting the pulley back together. Remember the screws had broken off, so I got to put galvanized screws in there.

I hate to do it because the other ones are like tempered, but that's all I got for now. The motor is kind of making a funny sound when I spin it. So I have a feeling: we're gon na have to come back and change a motor, but I'm gon na try to get them up and running right now, because this restaurant can't even operate at the moment. Okay, so we're gon na eyeball this alignment and what you want to do on this type of trying to remember the name of this pulley.

But it's a from life, and we can't remember the name of this pulley I'll, try to do it in the video recap. But this type right here what you want to do is you want to push everything in a little bit further than it needs to be, because when you tighten this down, it's gon na it's gon na pull this guy. This way so we're gon na find where we need to be go a little bit this way and then just I'm talking like less than a sixteenth of an inch and then when you tighten it down, it's actually gon na pull the pulley back. This way, all right, we are back up and running 9.4 hands.

We're allowed to run ten point we're gon na, let it run for about five six minutes and then we're going to turn it off and double-check. The tightness of everything no funny sounds coming out of the exhaust fan. There should be a screen on here because someone to stick they needs to be clean cool. What a stressful moment I mean I just I was in the middle of doing another call and I got an emergency exhaust fan down this particular restaurant.

They had to shut down. So it's now three o'clock in the afternoon. They haven't open all day a little bit. So I would have loved to have shown more of the work.

Unfortunately, this was a very, very fast-paced, high-stress job. It was hard enough for me to go ahead and turn on the camera. Every few minutes to show my progress. Okay, so I apologize, but you guys got to understand that there's a lot of stuff that I don't film on a normal daily basis, I mean I might film once or twice a week out of all the service calls that I'm doing because certain situations like, for Instance, with this exhaust fan, I had a manager come up on the roof.

That was talking with me and kind of asking me questions, and I have no problem with people coming up on the roof. I just like I like to explain things to you guys. I explain everything to the manager the whole time I'm telling him like. Oh, this is what I'm doing, and this is why I'm doing it I enjoy talking to people when I'm working so but anyway, so I got as much as I could and I think I got the important things.

Okay, it's really really important when you're working on bearings, any kind of power transmission with exhaust fans and shafts and different stuff is cleanliness: okay, some good sandpaper, some good, penetrating lubricant wd-40, rust, Buster, Crawley, ol or whatever you call that stuff, any any kind of a Penetrating lubricant works really well, it's very important that you are very cautious when you're trying to take bearings apart and pull these apart different things, and that pulley is just it's a bushing style pulley. I was looking for a name, but there really isn't a name. It's just a pulley that accepts a universal bushing so that Universal you can take that pulley and you can put it on a three-quarter inch shaft a one-inch shaft. That was an inch and 3/16 shaft and then you can just buy a universal.

I'm sorry! You can just buy a bushing, that's the the bore of the bushing. Is your shaft size, okay, so anyways? I was searching for a name for that the whole time, but it was really just the bushing for the pulley but anyways when you're doing that stuff. You know you can't be banging on it with hammers, because you can really throw things off balance same thing. It just takes experience to get to the point where you learn the little tips and tricks when you're working with those things like, for instance, leaving that first bearing in place and not disturbing it, while you're taking off the inner bearing because once you take that.

First. Bearing off, then you lose all your integrity and everything starts moving around and they can't it's just impossible, and you also have to remember to something that I didn't show you kind of saw when I showed the exhaust fan working. That wheel is very, very close to the caller or the cone inside the exhaust fan. So if you go - and you know disconnect both the bearings and start beating that shaft one way you could be damaging that wheel.

So you know working with exhaust fans. You just got a stop, even though I was in a hurry, you're, you're, being cautious and you're. You know you're making sure that you're doing everything right, because you don't want to make mistakes. Little mistakes can lead to big problems with those exhaust fans.

When you figure those things are spending at such a high rpm, even the littlest ding inside that wheel is gon na throw everything off. Ok, so some of the tools that I used in that video, I really like Kline demolition screwdrivers. I had just recently gotten those and they're really cool cuz. You can beat on them and you don't have to worry about it and that metal.

The way that it feels to me is it feels like the metal is part of the shaft. I don't know I guess: I'd have to cut one open to know for sure, but super nice, when you're working with power, transmission, bearings pulleys, different stuff, like that a tuning fork, an automotive tuning fork, is a great tool for you. It works really well to two separate bearings and different things. It's a great tool, so I'll put some links down in the video show notes, so you guys can see what I'm talking about.

Ok and then you know, there's always other methods, I'm sure some of you guys were probably going crazy, because I I bawled that the pulleys you know you can you can take like string and straight edges and try to line up the pulleys and different things guys. I'm probably not, you know the greatest at making sure everything's perfect, but I got a pretty good eye for telling when things are straight and I can look at the pulleys and see how the belt is riding in the pulley and I can get pretty darn close. So probably not the best way to do it, but that's just how I've always done. It is just eyeball it.

If I was working on something supercritical, I might you know: do it a little bit differently, but these fans, I mean they're important, but you know we don't really have vibration problems per se on these things and stuff, so everything's pretty good. The other thing, too, is the bearings, so the type of bearing that was in there was a locking collar bearing I'm not a fan of those because they can be difficult, taking them off they're great going on and the concept of them is great. You know you, you tighten the collar the opposite way that the shafts gon na spin, so the centrifugal force tightens the collar on as it's spinning, but I like a set screw. I just like to put a set screw bearing on there.

That's what I put on there and just tighten down two set screws and you're one and done so, hey guys. I really appreciate you taking the time to watch this. Video leave me some feedback. Let me know how you do it tell me what I did wrong.

Tell me what I could have done better, really appreciate the feedback. I will catch you guys either on the next live stream or on the next video. Okay, all right thanks.