Restoring a Rusty Bison Six Jaw Lathe Chuck

[Music] hello keith rocker here at vintage machinery.org guys on today's project i'm going to be doing a little quick job hopefully a quick and easy job over on this chuck that came off of my monarch 10 doubly lathe so when i got the lathe that would sit outside for a long time we've already disassembled it and kind of sent the bed off to get re-ground and but i'm trying to do some light duty work because of some some minor surgery i had a couple of weeks ago and this is something that needs to be done so we're going to see if we can get it knocked out so my game plan is is i want to take this chuck completely apart get it cleaned up get it serviced put it back together and make sure it's going to be a good chuck this is a six-jaw chuck it's actually a very nice high-quality chuck the i don't think it really saw all that much use but it unfortunately set outside for several years when that machine kind of conked out we're going to restore the machine get it back up and going but this uh chuck definitely needs some tlc as you can see it's all rusty but i think we can save it i think we can bring it back so that's my game plan so we're going to get in here take this thing apart get her cleaned up and see what we can do with it so before we get too deep into this i think the first thing i'm going to do is just try to get some penetrating oil down in here and see if that will help get this thing taken apart so it's this machine set outdoors for a couple of years it was running fine they it had some electrical issues with it and the shop that had it put it out on the curb or actually out in the front yard of the machine shop when i found it and rescued it so hopefully this will help us get it taken apart so hopefully that lube is going to help out here i've got a chuck key here and let's see if we can get it to break loose so i think what i'm gonna do is go get a hammer and see if i can just kind of bump that see if i can get it to break loose it turned a little bit i really need this thing that's more solidly mounted all right i'm gonna take this over to my vise and see if i can grip it somehow without damaging it just to give it some stability i've got the chuck mounted in here i'll use my copper jaws to kind of protect it a little bit and let's see if we can get this thing to come on off now yeah that still bouncing around some there we go they're actually moving pretty good now they were just uh rusted in place but uh a little bit of oil a little bit of shock break them loose i think we got it now so there's a scroll up inside of this that engage those individual jaws and what i want to do is i just want to back them all out now each one of these jaws is numbered it only fits in one spot because the position on that scroll is gonna be different for every one of them and all right i think we got them all out we're gonna have to tap them a little bit to get them to come out that last little bit we're going to take them all out there we go all right next step so continuing on i got a couple of cap screws we need to get out of the top of this we'll cheat a little bit and use our impact driver here got those three change bits not good all right we get the big boy there we go [Applause] but i'm going to go ahead and pull these out the back just the right thing will sit down flat so i do have a long socket here so hopefully we can get these on out and these will usually just unscrew i think we got it these pins are hardened so i'm not too worried about scuffing them up with those pliers all right let's see what happens i'm gonna have to get the big boy again the back plates want to come off now i think i want to put a witness mark on here i don't know that it will matter but this is kind of like a true adjust chuck where you can find adjust using these screws let me just get a punch i'm just going to mark those keep them timed together i'm just going to take a little center punch here and i'm just going to put a little mark that way i can line those up whenever they go back together there we go the back plate should come off now and we got a bunch of crud on the inside but look it's not too rusted up in there i think i'm going to use just about every one of my it's here to get this thing apart now that piece should come off the front now this should separate now there it goes just taking a little chisel here and hitting in between that little crack to get it to separate apart looks like there's some alignment pins and there i see them and that's probably why i didn't want to come apart as those pins were kind of holding it in place i think we can get it now [Music] all right so we've got our little uh gears here that turn in there we're just gonna go ahead and take all these parts out this uh chuck is definitely in need of some service between the rust and the lack of lube in here there it comes so that's got that out there is our scroll that turns inside of there see it looks like we got some little keepers here now this scroll has got to come out [Music] there we go and with that i think we have all of our components completely taken apart all right up next i'm going to take all these parts over to my parts washer and uh get any grease there's not a whole lot of grease in here i want to get all that off then we'll take these to my bucket of evapo rust and let them soak overnight and hopefully we'll get these things cleaned up looking nice all right we're getting ready to go put this in the vapor rust i'm just going to put all these little loose pieces down here and a cup just to contain them all right the rest of these parts i'll drop down this is a five gallon bucket it's got some holes in it that i will drop down into my tank of evapo rust and we'll just drop that right down there with it and uh let it soak overnight i'll probably just took about 24 hours we'll pull it out see what we got let the magic work all right guys we have let this uh stuff soak in the evapo rust overnight it's the next day now i've pulled it all out and uh typically what i'm going to do after i come out of the evapo rust it does a pretty good job just straight out getting that rust off but i like to just take a scotch brite pad come over to the sink and just real lightly give it a little brush it doesn't take much but typically what happens is there's a little layer of kind of oxidation or whatever you want to call it left on the surface of whatever you're working on and uh if you'll just take a minute and get it off it really goes a long ways toward everything else so that's kind of what i'm doing everything the rust is pretty well dissolved but taking that little bit of elbow grease here you don't have to scrub it very hard you just kind of have to just real lightly wipe it and that rust is pretty well gone got a little bit there on the front nothing too bad you can actually see the cleaned up the name plate this is a bison chuck okay all right that one's done this is the the back piece same thing just uh real lightly do this i'm not having to you know rub this like it was just plain rust but this really helps and it also gets that vapo rust residue off of your part just with the water cleans it real good which i like to do as well we'll go through here and get all these cleaned up and we'll be back over the bench a little bit and take a closer look at them all right guys i think we are ready to put this thing back together so everything was cleaned up at the sink uh after i got everything over here i just took a rag and tried to wipe as much of the moisture off as i could and you can tell i got an oily film on here i squirted it down with wd-40 now i know a lot of people are not a big fan of wd-40 they don't think it's a great lubricant i wasn't using it for lubrication my sole purpose in using it was for water displacement to get any of the water from the sink and from the evaporator out of these parts so that we were not putting moisture back in there that could rust the wd and wd-40 stands for water displacement which is what i'm using it for here so we will kind of wipe these parts and get most of this uh off before we do it this has been sitting on here for probably 30 minutes now as i've been working on a few little things and getting ready to shoot this segment but uh there you go so what we're going to do is uh let's see that's the back plate we're going to start with this piece here let me just again we're going to wipe this wd-40 off i didn't do a whole lot of scrubbing on these you know just a little bit just hit it lightly with the scotch brite you know and it's got them pretty darn clean i'd say they're probably cleaner than the average chuck you'd see in the shop now if i wanted to really get these things to polish up and look like they're brand new what i could do is after i put this together i could go over to my lathe and put on the lathe spin it up with some scotch brite and polish it out sometimes i do that and honestly i would probably do it here except i don't have my lathe running the lathe has got to be restored and i don't have another spindle in the shop that takes this spindle size and without having to chuck it up in another lathe and do a bunch of stuff like that it's just not worth it uh it's gonna be fine just like it is so all right this is the uh the front of the chuck i got it sitting face down and the first thing i'm going to do is we're going to put our scroll ring back in here and again i just want to get all this lubrication this wd-40 that's sprayed on here not all but i want to get most of it off now the way it's going to work is it's going to fit down in here this is the scroll that the that the jaws run on so this goes around and around and as you turn it it moves these in and out and these are all timed to this scroll so what i want to do is put a little bit of lubrication down in here proper lubrication and for that i'm using some teflon grease this is some old stuff that i'm not even sure how old it is i acquired it somewhere along the way i think a friend of mine gave it to me with a bunch of uh stuff that he had he had several jars of it and this stuff has served me well you can still get teflon grease i don't know if you can get this particular brand anymore or whatever but that's not important what is important is that i'm putting just a real light layer of lubrication in here just so that it has something to go now this teflon grease is good you don't want to get it too thick particularly in the scroll because it will potentially catch chips and stuff but you do want to have a little bit of lubrication in there this is going to be a tight fit it's going to have to fit down in there just right i may have to bump it let me get my lead hammer to kind of bump it and line her up there this sled hammer won't really hurt anything now that's giving me more trouble than i thought it would this brass punch all right so once it kind of gets down in there it's not gonna that's pretty much all the way down but that will actually turn pretty easily it's got very tight tolerances and the whole bumping thing here was just getting it lined up onto that shaft but we got it in there we'll make sure there's not any little brass pieces stuck in there i think i got them all out but you can see that's turning and it's turning fairly effortlessly and that's exactly what we want all right continuing on we've got these little uh pieces here this is for where the uh the chuck key fits down into let's see i don't know why that one doesn't want to fit in that one over there see that's this one must be a little burr on there all right so taking this key i mean it fits in real good all the way around until you get right up right in the top there and in fact i can make it go in that way but it needs to have some wiggle room i think what happened is this thing got bumped and it just kind of deformed the metal right there so i've got a flat file here and i'm just going to kind of get down in here and see if we can knock that little burr that's in there out all these this little piece right here does is just kind of keep that um that piece from coming out and i think that's gonna be fine right there and with that you can see its purpose right there it just it just keeps this from from coming out this direction it just catches it in there and this is where the you got the square hole that you turn to that will in turn turn the ring in here there's three of these around here so i do want to put a little grease on these you know i don't want to over grease it but i want to put just a little bit in here put a little bit down in that see what i'll do i'll do this right here i just want to make sure that we got a little bit of lubrication down there you know what i just remembered these uh fit up inside this little piece here and then it drops in there like such there it goes all right so you got a solid ring around there let me fix this other one here we can take our back plate and drop it on here so there's one alignment pin i got one alignment pin right there so i need to make sure i get all those lined up but before i do again we're just gonna put a little lube in here gonna have things running on these surfaces plus it just kind of helps from a rust prevention standpoint everything else i'm not getting it over over lube but i do want to put a little bit in here all right and now we will this hole right here mounts up with that like such there's only one way this thing will go on and it's probably going to take a little tapping to get it to close up i got to get it lined up with that pin and also get the inside where it's kind of lined up as well you know what i'm getting ahead of myself here there's a little pin hole down here in the bottom i that these uh gears ride in so like such i'll put that keeper back in so a few more moving parts no big deal you got to hold your mouth just right to get all the stuff together right now these should made together so let me get this piece back down here i can reach it good and put that pin straight up at 12 o'clock for me now the trick is is we got to get all these grooves lined up just right it's got a little hook here all right i think we have it okay and then there are three cap screws that go in here that hold this together good and tight looks good all right before i go any further i just want to make sure that scroll in there is going to turn very easily with my wrench and it does so that looks good flip it back over and next we have our back plate this is the part that mounts to the lathe itself and uh again i want to just wipe this off you know that i don't want to have too much wd-40 inside this thing that will gum up over time plus if there's any moisture left in there i want to make sure i get it out i am going to put just a little bit of a grease in here just a really really light layer and this will just kind of help keep any corrosion and stuff from going now this is a true adjust type back plate and when i say true adjust there's a screws that you can have a fine adjustment to get this truck chuck running perfectly true one of the common problems with a three-jaw chuck or in this case a six-straw chuck is is that you know it probably isn't going to run perfectly true but with one of these true adjusts you can adjust it kind of like you do a four jaw chuck now i did put a mark here on the back to get this in the exact same place it was before probably not necessary but if you look see that little bit of play there's not a lot but that's more than enough to take out uh the play in here and there are four screws around the outside of this that are used kind of like adjusting a four jaw chuck again to find adjust this over on the lathe now i'm not sure why these are look like that they're usually on these things i see these at 90 degrees where you have four adjustment points there's four on this one but they're like not quite but almost in line with the jaws i don't know why they did it that way i would have rather had seen them be at 90 degrees to one another but there's probably a good reason that i'm not thinking about and one of you guys will probably inform me all right this is something we'll have to adjust once once we get it over on the machine i'm just kind of putting my thumb on here and trying to make it at least feel like it's running true with the chuck itself but this is again something that we will adjust over on the lathe once we get it all put back together we can put an indicator in there and tune it in now we've got three bolts here actually it comes in from the other side so turn it over we'll do it from this side these three run in this way and kind of hold that back plate in place there will be enough adjustment in there that you can adjust these and then we're also these three uh screws that were up front i'm just going to do these by hand these are so small i don't want to risk breaking one with that impact driver i'll just snug them in there okay turn it back over again now i've got my um pieces for the mount this is a d what a d3 i think i can't remember uh amount i know i got a d16 on my bigger lathe i can't remember what this is i want to say d13 but that may not be right so uh if it isn't i apologize this is a cam lock type spindle so basically you got these little cutouts in there and over on the nose lathe you've got uh circular cam piece and when you turn it it pulls this uh whole chuck in nice and snug up against the face of the the back face here and i really like this design all right that's all the way in you back off just a little bit and there's a screw that you put in right here and that will lock that keep that from spinning out we'll just turn these in with the hand socket wrench here all right we have all of our mounting studs on here now everything looks good there we're going to flip it over and the last step here is going to be to put our jaws back in now on these jaws uh we got a scroll in here this scroll is timed uh you can't just put any jaw in any uh slot here it has to go into the right one and if you look on these they should be numbered right there that one is number three i'm going to get these lined up over here this is number one this is number four this one's number six two and five so those are all in order now what i want to do is uh look in here and these are going to be numbered as well and they are numbered on the inside on this one most of them i see your number on the outside but there's a number one two three four five six so i'm gonna do let me get this over to the edge of my table this is number one and what i'm gonna do is i'm gonna turn this scroll and it was in just about the right place you can see right here hopefully you guys can see that when i turn that see that scroll coming around that's what i want i want that one to catch first and we'll take number one i'm gonna put a little bit of uh grease on these again i'm not trying to go overboard with it but i want a little bit of grease in there for these to slide on we'll pull that in and that should catch on the scroll and i'm going to roll it around until it comes up to number two right there we're just shy of number two we could grab number two we'll slide that in there and that should catch number two come round number three same thing we're just gonna go around one at a time make sure i got number three here's number six last one i don't like to go overboard with the grease in these things because the grease will attract chips but you do need a little bit of lubrication in there so use it but use it sparingly you can see all those jaws are coming in together and if this thing is put together right when they get to the center they all ought to meet up at the same time which they are so we got it together right and with that we are all together i'm just gonna wipe any excess grease off of this and one scroll chuck nicely restored i will note real quickly that while i'm over here bumping around on this table putting this chuck back together shaking the table making it move around everything simultaneously underneath the table uh this is what's going on these cats seem to be real concerned with all this noise i'm making out here yeah they're really good shop assistants as you can tell just a quick close-up look here you can tell the difference we got all the rust off we got everything moving freely when we first started working on this chuck it looked terrible uh it was pretty much frozen up you saw we had to kind of bump it to get it to break loose this thing is just as slick as can be right now no problems at all this chuck i can tell by looking at it and working with it and whatever it's got very little wear on it uh just like really most of that lathe that monarch clay that i'm restoring didn't look like it had a lot of wear on it but the electronics went out on it and it set outside for a couple of years because the guy just thought it was junk and to him it was but we're going to rescue this thing and bring it back i'm real happy with how that turned out the true test will be when we get it on the lathe and get a part in there and see how true it runs but i fully anticipate that this chuck is going to be great and for comparison here's a shot of it before and after side by side you guys can kind of see what she looks like and with that uh that's gonna be pretty much a wrap on this uh episode i will just make one comment here guys about doing this to a chuck this is something that you probably need to do to chuck periodically on lathe as you use these things you're gonna get trash on the inside of them it's inevitable it's going to happen so periodically for me about once every year maybe two years whatever kind of need i will take my trucks apart i will clean them i'll re-lubricate them and put them back together obviously i don't have to go through the de-rusting and all that kind of stuff like we did with this one on every single one of them particularly if it's a chuck that's in use in shop but it's good to get all that gunk and stuff out of these things periodically and most of your three jaws six jaw chucks scroll chucks like this they're all going to be pretty similar to how this one went together yeah from one company there's going to be subtle differences but the principles are all going to be the same and i would encourage you that's just part of your maintenance on these machines to keep your chucks in good order and don't be afraid to take one of these things apart and clean it up so there you go and with that that is a wrap as we said so uh we're going to sign off here as always thank you guys for following along here please subscribe the channel if you haven't already thumbs up and comments are appreciated really helps the channel out if you leave that thumbs up or if you give a comment down below and if you haven't already hit that bell icon to get notifications when new videos are posted to my channel and with that guys again thanks for watching we'll catch you next time around [Music] you

Channel: Keith Rucker - VintageMachinery.org

Views: 94,059

Keywords: Machine Shop, Machinist, Lathe, Restoration, Vintage Machinery, Metalworking, How to run a lathe, Keith Rucker, VintageMachinery.org, rust removal, bison chuck, lathe chuck, chuck restoration, six jaw chuck, scroll chuck, scroll chuck restoration, evaporust, bison 6 jaw chuck, 6 jaw chuck, three jaw chuck, lathe chuck restoration, lathe chuck disassembly, lathe chuck removal, lathe chuck maintenance, lathe chuck repair

Id: PNxB72QqlxQ

Length: 37min 49sec (2269 seconds)

Published: Mon Nov 01 2021