Hydraulic cylinder breakdown pin

hey guys welcome back from classic work got another good one for y'all today if anybody's ever tore down a hydraulic cylinder before i some may know some may not know that this is a bear of a job especially if you don't have anything to do it with so today i'm going to show y'all how to build a manual jig more or less to tear one of these dudes down so it's not real complicated it's pretty easy but you got to have a few things and without any further ado guys let's get after and let's get started okay the biggest thing with fooling with these hydraulic cylinders is is how to hold them down now this one right here is pretty good size has come off a case backhoe i think it's a 580 i'm not a 100 sure on that one but if you can hold the barrel that's what this is right here then you're in good shape most common ways of holding hydraulic cylinders like on a big heavy welding table that's uh usually your best bet um what i'm gonna be doing is for the the service truck build if anybody's falling on that i'm gonna build that one for my workbench on the bot on the back of it so all you need to do pretty much real simple is you need something some form of pen that'll fit in the eye right here now all hydraulic cylinders are different but they're the most common sizes out there are smaller cylinders is one inch um all the way to inch and a half there's some inch and three eighths i think out there too and two inch and i think this one right here is two and three quarter if i'm not mistaken now that's all you know american sizes now overseas and stuff like that there'll be probably a lot of 25 millimeter there'll be a lot of probably 50 millimeter as well and you know metric versus you know standard you know common sizes but most of the time measure your cylinders that you're going to be doing the most and then find a pen more or less that that's that size i don't have any stock that's that big this is a two inch pin right here there's a piece of 1018 co-roll but i do have this bushing that come out of a reynolds pan that does fit this i got a nice fit in here and this bushing will fit this pin right here so that should be simple i don't have to do a whole bunch of machining now so this stuff i have on hand so this is what we're going to use so let's get to building the jig [Music] um [Music] so [Music] hmm [Music] do [Music] do [Music] um [Music] [Music] [Music] so [Music] i do believe he has a problem that's water that's oh well a little bit of a lot of water in it i've never seen this pure water run out of hydraulic cylinder all right so we got our two inch pin here i'm gonna go ahead and put my bushings on the second one may be too much we'll just travel one roll it okay knock it around a little bit oh there we go that's on back the forklift out from under it all right that's on there i think my blocks a little too thick i see it's standing up pretty good i think that's going to work though that looks good to me you may be asking why i don't have the other bolts in here i got two missing uh biggest reason is i didn't have any others i thought i had four but i didn't so that's the big reason for that so down here i think this block is a little tall and it really needs to be up under the barrel here so i need to find me like a two by six or something to slide under there and the other big thing is too when we go to torquing on this dude that uh we're gonna have to put like a clamp right here maybe another block on top or right down here really so that the barrel doesn't try to slide off the side i haven't had that problem before but on a big cylinder you usually do so let's go ahead and see if we can't break this dude open all right so the first thing you got to do is get this gland in off right here now most of them are just threaded on some of them are loctited and all kind of stuff but this one right here has actually got a captive screw i'm sorry that's right here it's just a flathead almost like a sheet metal screw on these cases i know you do have to take that out before you can break this gland so it's one thing that you got to look out for i had to get a socket on it field jerk is tight a lot of guys will take a really big pipe wrench and get on this gland i don't know if you saw but it's super thin so you can't hardly get on with that a lot of manufacturers put holes right here into the gland end so you can get a special tool in there i actually happen to have one of these this here is a otc part number 1266 this is a double ended tool more or less that's got two different styles of pins that fit these holes and it's adjustable and there's a little allen screw right here that you can lock it down to get a certain size that you want these have got dirt all in them like they often do but uh if you work on a lot of hydraulic cylinders that's a that's a tool that's nice to have some of the universal tools they don't fit a hundred percent right let's see if the big ones will go in there i don't think they will all right oh yeah perfect fit there actually it's rare so up here on the square again a three-quarter drive ratchet fits it or a pull handle and you just i would say you reef down on her but you don't want to be reef don't look like oh man i gotta get a pipe i may have to tighten this up a little bit all right got to be smarter than the tool you operate only slightly though so bouncing around a lot too yeah that dank pen is 22 bigger than this that'll piss you off right there all right let's put it right there so there you go all right so up here on the gland then you're supposed to have a a spanner that fits these but i don't have one so you got to use the next best thing bike wrench this one looks tight grab a rag there we go good deal all right now then we gotta get the barrel off the pin because we gotta have the pin again to get the gland off drain out a little more all right now we got to get that nut off shouldn't be too bad not bad got it off all right yeah that little o-ring was tore up all right there we go that's how you tear hydraulic cylinder down is you

Channel: Classic Work

Views: 110,443

Keywords: classic, work, Hydraulic cylinder, home, made, lathe, drill, press, pin, break, down, truck, bench, onsight

Id: zw5HSCGPkf8

Length: 18min 8sec (1088 seconds)

Published: Fri Aug 21 2020