John Deere mower deck bearing replacement

welcome back to Half Moon tech labs something a little different today I'm out here in the lawn shed in front of the John Deere you can see it's a 100 Series this is the la-175 uh not a ton of hours on this thing actually it only has about 150 hours but we've already uh spun a bearing out on this and this is what we're looking at here these sheaves I'm going to open this up so we can get a better look but these sheaves there's one two and there's another one out in the back that are exactly the same construction the sandwiched shell construction with a bearing captive in the middle all riveted together let's get this cover off and we'll take a closer look okay these we're not worried about these are on these Tower spindles those are okay it's the sheaves that we want to take Ellie look how sloppy that is okay let's pull that nut off okay and to get this out I'm going to pop this belt real quick cool this should I believe just yep okay you'll stay there and there it is so here's the uh here's the sheave you can tell it's riveted together it has a I can see it right there 6203 bearing it's a very generic bearing these bearings are a dime a dozen I mean you can buy them for five to ten bucks just about anywhere off the shelf but if you go on eBay or Amazon you can buy 10 packs of these bearings for like 12 15 which makes them about a buck and a quarter a piece so anyway sad part is John Deere wants you to buy this entire assembly when that stupid two dollar bearing dies they want you to change this 30 dollar part that is meant to be not serviceable well I got news for you we're going to make it serviceable we're going to drill these out pull this apart put a brand new bearing in and then we're going to put it back together with nuts and bolts and that way from here out I won't have to spend thirty dollars a piece when one of any of these three go we'll simply take the nuts and bolts off drop in a new bearing be back in business in minutes for a fraction of the price okay let's take a look so here's a little closer look at the sheave now that it's been removed wiped down a little bit you can see where it's been riveted eight rivets this is a clamshell type construction two pieces identical they're just simply placed together I can see where there's an additional hole here and here most likely those are for manufacturability for when the uh for when these were first assembled and um just for alignment and as sort of a a jig to hold it in place while the welding took place whether that was manual or robotic it doesn't matter the most likely just drop this whole assembly onto a jig uh and then hit these rivets and then pulled it back out and that make sure everything stays in alignment we're going to use these holes for the reverse purpose we're going to put a screw through each one of these no not on the back and we'll do that on both of them and that's so that as I drill these out on the drill press as we get towards the end uh there's going to be a likelihood most likely for this thing to shift around and we don't want that to happen when I'm on the drill press so I'm just going to reuse these holes that the manufacturer used to put it together in our case to help take it apart and hold it together until all the drills until all the drilling is done um the rivets if you've noticed this this kind of a fat side over here and then a larger diameter flattened out much thinner side on this side we're going to drill through the side that looks bigger uh here but is much thinner that'll be easier to drill out so we're going to uh set up a quarter inch drill once I put these bolts in place we'll get over to the drill press and we'll start to start drilling foreign [Music] nut the bolt through just for our alignment hole so hold this in place as we drill these out like I said um one last thing I'm going to center punch each of these to make it easier to locate the drill and then we'll start drilling right after foreign [Music] center punch ready to go let's go over the drill press we're just going to go down just enough we're not going to punch straight through we're just going to go down enough to expose the base material and then we're going to stop and then we can just knock them out with a with a punch or uh or something sharp so let's get over the drill press all right all right foreign now you can see we've got them all punched out [Music] all eight have been exposed now I just have to make sure that we run the quarter inch drill down through each of these holes we're going to leave these alignment screws in that I've put in intentionally where we're going to redrill these eight holes so that they're exactly quarter inch and then we'll uh take out the bearing we'll separate this thing foreign okay let's uh let's remove these well actually let's put a mark on this first so that we remember which sides was which we'll just do this in a place where we won't be bothered that way I can remove these and know that I'm putting it back on and not 180 degrees out I want to make sure this alignment is perfect here so let's take these out okay foreign look at this falling right apart okay and there there's the bad bearing just sitting inside there so once these two sides are apart I'm going to do is tap this bearing out [Music] press that in there 6203 bearing that thing is grumpy as hell all right let's clean this up and drop in a brand new bearing foreign on Amazon and I was able to buy some quarter 20. black oxide coated um cap screws and uh so these are button head cap screws I got that on purpose I don't have to use a washer with this if I drill these properly also for the other side we've got quarter 20 [Music] nuts with Shake proof nylon inserts again we won't be using any uh washers don't need to these will hold all by themselves there's eight of them and with that uh with that locking function on there these won't come off and uh won't be any additional hardware needed so let's drop a bearing in there these are the bearings that I got I've got these pack of like I said I've got a 10 pack of 6203s brand spanking new for about I think it was like around 12 or in change with shipping maybe it came to 15 bucks or something like that but anyway about a buck and a half a piece give or take when you buy them in bulk like this versus spending five to ten dollars each if you were to buy them singly um but um anyway that's gonna work so let's drop that in here snaps right in [Music] make sure we have you see that just pressed right in there okay uh look for our alignment there we go okay [Music] now we can drop the quarter 20. nuts and bolts in and we'll see how that works okay foreign just holding it with an allen wrench on one side tightening these on the other I'm just going hand tight to start with and I'll go around in a pattern and tighten them all up okay and there we go we have quarter 20 button head cap screws going through one side these black oxide type um you don't need to get stainless or anything crazy like that these are these sheaves are made of steel anyway so just get a to steel cap screws we have the quarter 20 uh locking nuts on the back uh did that so that we didn't even have to use washers this ended up working out perfect the sizes that I used on this oh that's sturdy that's nice brand new bearing look at that but anyway that's how it works and I'll show you what I you know these are the uh you know 10 pack of 6203 bearings that's that's the bearing that my particular sheave takes it does vary by by mower model but uh same principle applies you can get these for dirt cheap if you buy them in 10 packs off of eBay or Amazon um the uh again these are also off of uh Amazon these are button head socket screws uh 50 pack of quarter twenties and um these ended up working out great uh same thing with the black oxide matching nuts with the nylon locking insert so those are uh um these are these are dirt cheap buy a 50 pack of each of these for for practically nothing and uh and the bearings again a dollar something a piece now I've got all the parts I need to do the other two which I'm gonna go do next I won't bore you with that I'll just show you that uh that's how it comes out it's got a brand new bearing now and that'll work perfect and I'm going to do the other two after this and that mower will be good to go for I don't know how many hours but uh next time the bearings go not a problem I've got a whole box of them there it is brand new bearing and now we have a sheave that can be easily disassembled and we can change those bearings at will for a recurring cost of a dollar fifty per sheave now uh the rest of it's a sunk cost we've got the nuts and bolts which are reusable the bearing is the consumable item and now instead of replacing the entire sheave for 30 something dollars we can change just the bearing for about a buck and a half do it ourselves in a matter of minutes and uh that should do it hope this saves you some money and thanks for tuning in to Half Moon tech labs take care

Channel: Halfmoon TechLabs

Views: 33,884

Keywords: John Deere Mower, Mower bearing replacement, Mower sheave replacement, mower pulley replacement, Pulley bearing, sheave bearing, Mower deck bearings

Id: 7ZNTkMJ9IYs

Length: 17min 55sec (1075 seconds)

Published: Mon Jun 19 2023