SNS 262: Machine Grease Points, Bush Hog Hydraulic Cylinder Rebuild, Tap Wrenches

[@mark63366]

I'm a farmer who has rebuilt a lot of hydraulic cylinders, this is the best video I've seen about it and I learned somethings too. My dad and I were both waiting to see you struggle putting in the inside seal, the worst part of the job. Then you pull out a tool I've never heard of or seen before, that seal twister, and bam your done in seconds. Thanks for filming this. That little bit will save me a lot of struggle in the future.

[@DavoShed]

I can remember hanging on to a 2:1 reduction handle while tapping a 3” thread on a radial arm drill. The boss saw my feet starting st skid across the floor so yelled hang (insert 65 year old Hungarian accent) on! Keep going! and he ran over and grabbed the handle with me. It was at that point the tap stuck completely and threw us both across the shop. We hit the deck in a heap an he was laughing his head off. Flying through the air I assumed I was going to get fired. Later, I managed to save the work piece. We had a honking big tap wrench like that. Perhaps we should have been using it. Certainly a strong memory.

[@heavymachining7830]

I'm in the market for a 24 GreenField myself, I've got a 22 but I also have large tapping projects in the shop being in an ag area. By the way Adam it is your attitude of trying to help others learn and understand that brings most of your viewers back for more. Too many shops just tell people why they can't repair it themselves. Keep up the good work!

[@nathanhershey7897]

Usnm 158- United States Navy Maintence #158 according to the shop. So 158 is not a nsn number but a shop item number that the shop recognizes as theirs. I was a Marine Corps Armorer. I would repair weapons, I've seen very similar numbers on other things while I was in.

[@kejay74]

@Nathan Hershey Hey! I can believe it. As I said, "history curious" and have seen stranger denotations on tools over the years! Just looking at the the probable 'age' of the tool and seeing the 'M' class of vessel, had me "thinking". LOOK OUT! I am dangerous when I "think"!!! LOL! Ken

[@nathanhershey7897]

@@kejay74 lol it's very possible! I was attached to an air wing, so I never saw any tools that large in use. So I shipyard is very probable for sure sir

[@nikolaysalutski3270]

thank you Adam....very helpful and encouraging for guys as you said trying to fix stuff on their machines....i will be attempting a leaking cylinder repair on my Komatsu PC50 digger and your video gives me some confidence it can be done

[@michelgrenier1878]

Some large motors like on that shaper have relief grease caps opposite the grease fittings that must be removed before adding grease (bottom) ,This is to flush out the old grease and prevent blowing the bearing seals and sending grease into the motor windings . This also prevents over greasing the bearings .

[@garybaris139]

I have done a fair number of hydraulic cylinders over the years but have never seen that type of retaining ring system. Thanks for the informative video, now I'll know what to do when I encounter one of these types of cylinders.

[@garybaris139]

By the way Adam, you are looking great these days.

[@jdb21867]

Would like to add a small but important trick -----after final assembly -----Melt a small amount of candle wax in to access grove to seal out trash

[@ramsay19481]

On the motor..Look underneath the bearing housings 180 degrees from the fittings on top there should be a plug.. This is a purge plug.. Take the plug out with the motor not running, pump grease in the fitting until you see the grease in your gun come out of the purge plug.. Run the motor for one minute with the plug out to expel excess grease then put the purge plug back in and tighten it.. Do not add grease without removing purge plug... If you don't use purge plugs, grease will eventually get into the windings and ruin the motor... Mike in Louisiana

[@tomasslabbert3437]

Adding grease to a bearing is a precise science. The quantity of grease can be calculated from the bearing size. And on top of that grease guns are calibrated for precisely this reason. Adam probably overgreased the motor bearings. Six pumps seems too much for a bearing that size, judging by what we could see from the video.

[@ramsay19481]

@@joeylawn36111 I have seen motors with grease packed into the windings because they were greased counting the shots or whatever.. That purge plug is there for a reason.. If you use it, you can purge all the old grease out and expel any that would get into the windings by running the motor for one minute with the plug removed... Replace the plug after one minute and there is enough grease in the bearing... Many good motors have been ruined by people by not using the purge plug...We had large hollowshaft motors at work on deep well pumps and some had grease in the bottom and the bearing was greased this way once a year....Mike in Louisiana

[@ramsay19481]

@@tomasslabbert3437 If you don't use purge plugs you have no way of knowing... Even if it is the right amount, when the motor starts the grease will expand and come out possibly in the windings....Most bearings in electric motors or generators need be only 1/3 full of grease... Mike in Louisiana

[@tomasslabbert3437]

@meg Many electric motors do have grease nipples but don’t have a purge facility . Excess and old grease accumulates in a storage area incorporated in the end covers and this must be cleaned out when these motors are serviced.

[@garybrenner6236]

When greasing that motor on your shaper, check for pipe plugs that may be on the underside of the end bells below the grease fittings. If they are there, they should be removed prior to greasing, so that excess grease does not get into the motor windings.

[@xenonram]

Push the plunger rod into the cylinder. (On the grease gun.) You don't need to leave it sticking it like that. The rod in meant to slip past the piston, and into the grease.

[@ga5743]

Love the way you work Abomb.......no mess, organized, and knowledgeable.

[@jdgower1]

30 years in fairly high level industrial maintenance and I learned some stuff. Basically, it's why I keep coming here. Thanks!

[@yt650]

Unhook the plunger shaft from the endcap and push it up in the grease gun it has nothing to do with pushing the grease up it’s done automatically it’s just in the way now that the gun is loaded.

[@bulldozer7656]

The *M* stands for machine repair shop. On a ship in the old days a single or double letter designation told which department the tool belonged to. An *A* would mean aircraft, *EL* electrician. USS Saratoga CV-60 1987-1995

[@susanbarbier5053]

KZbin is amazing. The fact that someone can help others by showing EXACTLY how to disassemble a hydraulic cylinder is incredible to me. Spreading knowledge is what the internet is all about.

[@eyewetoddid]

I truly enjoy your videos.....I never worked as a machinist, but I worked for over 13 years in the structural steel industry building everything from power plants and bridges to stainless stairwells for General Foods and even some NASA work. I started as a helper....made certified welder , then moved on to fitting and layout . You sir are a true craftsman and your work is impeccable.....I truly enjoy watching your work!

[@stanwooddave9758]

You looked like the guy that caught the biggest fish, with those tap wrenches. Great Find, can't wait to see the tap(s) that go into those guy's. Thank's for the video. and thank you for taking the time to share with us.

[@TheManLab7]

I've don't think there's a single person in the world who loves tap wrenches more than you.

[@kevingallineauii9353]

Sad face for not being able to give more than one like. As far as the tap wrenches are concerned, I am sure Adam will find one we will be able to see from orbit pretty soon.

[@gregfeneis609]

Once you retract the spring and load the grease tube and screw it back together, you can shove the rod back into the grease. You don't have to leave it sticking out ;-)

[@videodistro]

This! I laughed when I saw that. They are made to push back in! :)

[@j.b.maxwell8300]

Adam after you load your grease cartridge you can push the plunger rod back into the grease gun to keep it out of your way it won’t hamper the workings of the grease gun , love your tap wrench’s .

[@rolliekelly6783]

Adam, you might want to back off when greasing motor bearings. With electric motors, too much grease can be worse than too little. The grease gets past the bearing seals or shields and will eventually fill up windings and rotor gap. When this happens, the windage inside the motor increases and the current increases to a point the heat rise spec is surpassed and soon the motor burns up. If an industrial grade motor doesn't run 24/7 1-2 shots every 6-12 mos. is plenty, unless the motor is at 100% duty cycle every minute it is running.

[@slypig24]

Agree. We would only put 2 pumps of grease every 6 months.

[@frankmarson2425]

Some motors have a grub screw on the opposite side of the bearing which you remove before greasing once fresh grease appears you clean up the old grease that was pushed out and replace the grub screw. This ensures that you don't over or under grease the bearings.

[@physicsguybrian]

Looking awesome Adam! Not only do you inspire us with your skills and experience as a machinist but you also inspire us to regain better health and live a lot longer! We need so many more people like you Sir!! Thank you for all you do!

[@jsh6952]

The #22 Greenfield was Navy property at one time, USN followed by M(aintenance)#### for inventory control.

[@Jacob-64]

Hey Adam , you make a great teacher ,your explaining of what your doing is first class . Great show tonight all the best to ya .

[@jlucasound]

If you didn't use the Dake Arbor Press to install that wiper, I would have screamed! Thank You for saving my families ear drums. ;-)

[@larryrobinson7492]

Nice useful content here. I haven't rebuilt a cylinder on my tractor in a while and that's a great refresher course. Thanks.

[@nobodynowhere3028]

That's one of my favorite grease guns that Lincoln makes. It appears to be a model 1142. Fun fact : that grease gun 33 strokes or pumps equals 1 oz. Typically I do bearing calculations to determine grease volume to each lubrication point. If you take your bearing size and measure the OD of the bearing and the id of the bearing x 0. 114 it will give you the amount of grease to apply in ounces for typical ball bearing. Anyway great video as always Adam

[@waynep343]

rod gland locking wire.. put some silicone over the gap to keep out rain water and debris. yet it will come out easily when it comes time to rebuild the cylinder. wiping a little around the top of the gland to cylinder is also a good idea to keep moisture and debris out.

[@markfritz315]

Adam you have a million dollar smile with the tap wrenches. Good for you brother!

[@thenuffnuff]

I don't know what's bigger, that No24 tap wrench or your smile standing between the 2 wrenches... Nice work Adam. It's real handy to to know how to re-do the seals on a cylinder like that. Cheers

[@ashleyjames6010]

Would be nice to see the cylinder being tested after a repair, I don't for 1 minute think there will be a problem but its nice to see a successful repair tested. Really like the content and as always it's great to see this kind of work shared with anyone who wants to watch and learn. Thanks

[@wayned1807]

Also available at Auto zone

[@ashleyjames6010]

@@wayned1807 ?

[@wayned1807]

@@ashleyjames6010 sorry was responding to another post using a smart phone. A lot different than my PC

[@freethought2296]

The tap wrench with USN is the United States Navy, the other letter and number is probably a U.S. Navy stock number. It looks like the wrench may be of WWII vintage, possibly in a ship fitter or pipe fitter shop.

[@brianohara5696]

You haven’t used the grease, but it’s the best . Thanks for reading the label because they never lie on the advertising

[@RickRose]

I would never have figured out how that retaining ring was meant to go in and out--Thanks for the education! Now, let me just go grab my 24-inch Crescent...

[@dudestuff3352]

Great video, that cylinder locking system has always perplexed me, you make it look easy; that what all good craftsmen do.

[@sailbad7826]

....Absolutely great...Thanks for your help with a clear video and dialogue, God bless folks like you...

[@BaronVonBeef]

The thorough explanations and demonstrations in your videos are really helpful

[@mohamer51missouri87]

On some bearings that have grease zerks there is a plug on the opposite side of the bearing housing. The plug is to be removed when greasing the bearing so that the bearing seal will not be blown out by the grease pressure. Sometimes too much grease is worse than not lubricating further. Replace the plug when finished greasing.

[@reynaldogarza2579]

Thanks man. I would’ve never figured that cylinder out. Now I know.

[@frfrpr]

My number 1 internet show! This is way better than television!

[@jrstow86]

Hey adam... I'm in the electromechanical industry as a lead field tech working on motors from fractional horsepower to thousands of horsepower. Even with the several thousands of horsepower motors, if not oil bath or Babbitt bearing motors, mobile polyrex EM, or any equivalent EM grease is the recommended grease for motor bearings, and only 3-4 pumps of grease bi-annually per bearing, larger bearings of course require more grease, sometimes even flushing. A general purpose grease is most likely an EP grease and too thick, causing higher bearing temperatures and will shorten the life of the bearing. Especially if it's a motor that runs daily. Over and undergreasing bearings or with the wrong type of grease is one major cause for failure. Unfortunately a poly based grease such as the polyrex em, doesnt play well with general ep grease. Just a little food for thought. I'm sure one of the biggest complaints motor mannequins have is stators filled with grease, ot liquified grease all thru out the windings... I love watching all your videos as you repair about 90 percent of the stuff I play with daily. Probably the best, most thorough machinist I've seen, you're an artist.

[@andrewnambudripad762]

How do you spec out your greases ? I realize that's a huge question to tackle since a ceramic bearing running a 20k rpm spindle is going to need an entirely different grease than a tree-stump chumper at 30rpm, but are there any rules of thumbs like "white lithium here is a safe bet" and "EP2 there will generally work" or "never use ___ and __ together" ? I try to use what the manufacturer calls out for but sometimes it's hard to find spec sheets for 1970s CAT 3408s and junk haha

[@jdspeed99z]

If I didn't see it here I would have never know that such a gland retaining method ever existed. I still can't even believe it. crazy. Thanks for sharing!

[@neilbarnwell]

I LOVE how neat and tidy the place is, and how neat and tidy and organised you are when you work. A tray, with everything spread out, no big piles of stuff to rummage through. Bliss.

[@j.s.foster1378]

I love my seal twister set couldnt get by without it

[@TheTkiller9999]

United States Navy Machinery (serialized number for the ship)

[@sickandtiredofcomplaining6574]

The #24 tap wrench would be great attached to the key of the ladies room at a rest stops!!!! 🤣😂

[@freednighthawk]

And I love PRG. I've had to do business with them a number of times and they've always been patient and helpful.

[@hgbugalou]

Abom: 'That's not a tap wrench. THIS is a tap wrench.'

[@chevytech1965]

I am headed to rebuild 2 of those cylinders tomorrow. So happy you took the time to post this.

[@mcd-chaos]

Never knew about the clear grease guns, but it makes sense. Thanks for sharing.

[@trainedtiger]

The Stamp on the Greenfield #22 tap wrench means it was once in a Navy Machine Shop, probably on a ship.

[@FullSendPrecision]

Thanks, now my siri has been reminded to grease your shaper motor.

[@airgead5391]

LOL!

[@geckoproductions4128]

Nice info about the retaining wire. That was new to me, thanks, I learned something. BTW: you're sponsors don't bother me. You're entitled to make a living too.

[@jamesconn1104]

Thank You Sir , i have a Bush hog brand lift cylinder leaking, this will be very helpful as i have never tried to repair one , still uncertain on which sides face in or out on some of orings , i do have my kit for it though, if theres a way to put something in backwards , i will sure as shooting with my luck . i appreciate You , best vid i have seen on this .

[@Wyllie38]

Gotta love the big side of stuff. Working in the mining industry most of our stuff is big. Never hand tapped anything bigger than like M36

[@dcrahn]

Love that grease gun so much that I just ordered one. I didn't know McMaster Carr had one like that.

[@halbritt]

The info on rebuilding a cylinder was super helpful, thanks.

[@FabFunty]

Nice, finally an "Abom-Size" Tap wrench can't wait to see them in action 😉

[@bcwrangler]

Nice idea having a see through container on the grease gun now if someone could make a grease gun that doesn't weep grease on cement floors in hot weather!

[@warrenjones744]

I am curious how long before the grease weeps out the back end and creeps up the sides of that nice clear tube and renders it useless for seeing inside.

[@felixar90]

Get home from work for the weekend, sit down, open up youtube and watch a guy doing my job. (I do mechanical and electrical maintenance in a machine & welding shop). Btw it's great that you got a sponsor now!

[@richxts1357]

Adam, back in the 1950's I was in the Navy, aboard shipand we had two (2) of those large tap wrenches marked USNM (United States Navy Military) or USNMaintenance? in the Engine Room.

[@darrenbrumley]

MOSOPELEA (ATF 158) is the only Navy ship I can find that has used 158 it was an ocean going tug which was 205 ft long so may have had one

[@kooldoozer]

Regarding the WD40 grease.... Does anyone else notice that the nomenclature, "Specialist" and, "Multi-purpose", are contradictory? Evidently the WD40 people don't notice either.

[@tomlee7966]

"Specialist" is the name of the line of products from WD they have many items under that title

[@kooldoozer]

@@tomlee7966 I also realize that the easter bunny is not real.

[@dougankrum3328]

I've worked on a few of those type of cylinders...word was...the groove and 'wire' was cheaper than threading two parts...those car-carriers you see going down the road used a lot of these...bent a lot of cylinder rods..some came in with 90 degree bends in them...customer wanted to just straighten them....got pretty upset when we said it needed a new rod..which actually cost less than trying to straighten....

[@jdshenanigans9265]

Im in the wrong job lol every hydraulic cylinder i get in is off a 1960s machine and is rusted up . Every one else gets the easy fixes lmao. Great video

[@stevenrogge7278]

Thanks Adam the seal tool makes installing so much easier.

[@samrodian919]

Steven Rogge I too love that seal insertion tool . I have never sen anything like it before and like the very best of things they are simple in exremis and work so well.

[@dvdru]

@@samrodian919 That seal insertion tool looks like the one we use for installing radius rod bushings on an MCI bus, but ours is about 100 times larger. Great video on replacing seals.

[@mealex303]

I knew my seal needed replacing when the one I had would not balance a ball on its nose any more 🤣🤣

[@kejay74]

Hey Adam! Being a bit of a 'history curious person', I am looking into that USN M 158. Immediately I found that between 1860's up through the first half of twentieth century, the U.S. Navy had a class of vessel 'M' for Monitor. I have yet to find ship 'numbers' for any of these class vessels, but, IF this tap wrench dates back to the 1920's thru 1930's, it may be possible that is the ship I.D. that is on that wrench. Ken

[@hueman09]

I like your answer better than mine - Good Sleuthing !!

[@strangefruit8776]

Just a tip. If you screw the tube in about a round into the grease gun then release the plunger before screwing it all the way in it helps expel the air. I do this even on guns that have a bleeder because it doesn’t end up making a huge mess like the bleeders do.

[@ActiveAtom]

Great to be comment number 200, thanking you for the share. Lance & Patrick.

[@silverbullet7434]

One of the valve shops I worked in we had those tap wrenches in use daily . RKL controls we built big really big valves of all types . Think I have a couple big npt taps out in my shop from there after sharpening them so many times they were to be discarded so I liberated a couple just to have . Enjoyed the rebuild I also have repaired several cylinders . Thanks

[@StageRightvideo]

Abom, when you finally find yourself a forklift truck you'll be able to service all the hydraulic system throughout!

[@andrewd.1113]

Thank you for showing me how to load a grease gun. . . I have 3 from my Step dad, now they will be put to good use... Also thanks for showing me how to rebuild a Hydraulic Cylinder... You have a very unique ability to Teach... When will you and Mr. Pete, AKA Trubalcain 222 do a side by side collaboration ???

[@thebmac]

I'd watch a video on doing it. There can be some tricks for bleeding out the air and making them pump grease

[@craigmccuistion4896]

Abom is now a unit of measure.

[@NathanOkun]

USN probably means "US Navy". The "M" may mean that this is a military ID # (not sure). Those things were used for threading the huge bolts used to hold heavy armor plates to battleship and cruiser underlying hull (side and deck) construction-steel plates. If you go onto one of the museum battleships and look at the armor decks where the main armor starts, you will see such huge bolt heads and/or nuts screwed onto them. Welding was used in some attachment to such armor (never on the cemented (carburized) hard face of face-hardened US Navy Class "A" side armor!), but it was not used for holding on the armor itself, since it could not penetrate deep enough through the joints to keep them from splitting open on impact by a heavy armor-piercing shell at a 1000 miles an hour or so; only rows of huge bolts with rubber washers to keep the nuts from being snapped off by shock worked, sometimes supported by grinding slots along the mating edges and ramming in long soft armor strips called "keys" to keep the two plates from moving apart. If I am right, what you have is quite extraordinary!!!

[@karolryan]

en.wikipedia.org/wiki/USS_Newberry_(APA-158)

[@messenger8279]

Very helpful. I have a little Kubota tractor with front loader and back hoe, plus stabilizers. They are all leaking so I will start with one and see how I go. My problem might be obtaining the correct seals. Many thanks.

[@buckinthetree1233]

The dealer will have a kit with all of the seals you need. It's much cheaper if you have the knowledge Adam has and can buy them from another source. Another thing about going through the dealer is sometimes the change cylinders during production, so you may need a serial number to get the correct seals.

[@messenger8279]

@@buckinthetree1233 Thanks but am unsure if the back hoe is a Kubota as it all looks a bit cobbled together. I will be left to pull the rams apart and try and get help identifying the seals. Past experience has been that if you seem unsure they brush you off and say take it to a hydraulics specialist. That's not an affordable luxury for me.

[@TooMuchGrapeSalad]

Recently been learning about hydraulic cylinders as an apprentice, seems lucky this video came out just now.

[@joshlaycock3256]

Thanks Adam. Took a lot of mystery out of tackling a seal change.

[@fergusonhr]

That handle on the grease gun should push all the way in even when its full...all I have ever used does

[@johnshaft5613]

"Abom79: Brought to you by WD40!!" NNNNOOOOOOOOOOOOOOOOOOOOOOOOOO!!!!

[@danielrocheleau5204]

I'm glad SOMEone's bringing him to us. Excellent channel.

[@FesixGermany]

The king of tap wrenches, good lord. I now have a new job at work, I changed to be in charge now of the total production maintenance and we have an excel spread sheet where all the relavant data is.

[@jimdelvey]

USN M158: I believe USN = US Navy; M158 = The tool number as checked out of the tool cage or bin.

[@dinotom1]

Most logical answer in the comments

[@waynep9592]

You could have a tap wrench with an interesting story. It probably was assigned to DD-158, USS Leary, but was obviously "liberated" prior to her sinking in 1943 else it would be at the bottom of the Atlantic Great find!.

[@ssboot5663]

I totally dislike that kind of end gland cylinder in heavy larger bore applications.. Especially the Cessna brand older stye like those.The end gland wallos out in the bore and the wire groove wears and they get to too loose to hold the gland tight and the o ring are always wallowed out. Love the tap wrenches!

[@dorhocyn3]

I like the lunch trays, Think I’ll head by our US food store tomorrow and pick up a few

[@sandrammer]

As an electrician I should warn you that your flex conduit on your shapers' motor has come out of the junction box. If you leave it the way it is, the vibration from the motor is going to rub the flex through the wires' insulation and cause a short in the motor's wire. Might also cause a fire if the breaker is old enough that it doesn't trip. Just a warning.

[@leebarnhart9725]

Wow! That is the biggest tap wrench I ever seen! It needs a lifting eye welded to it before I could use it.

[@by14996]

Very cool Adam. That Cylinder tear down/rebuild really interesting stuff. That Diresta ice pick does have a million uses, that's one of those things you don't learn in school. Can't wait to see that tap wrench in action, please do put that in a video one day! :)

[@allthegearnoidea6752]

Wow I never would have thought they made such enormous tap wrenches, Amazing. Thanks Adam

[@imagineaworld]

Everyone seems to hate that hydraulic design, i, on the other hand, am totally a fan. Thats just one of those ballsey ideas that really worked well as long as its maintained!

[@normalicy]

You say that now. Just wait until you run into one where the square wire snapped off in the retaining hole and it won't spin. Or even worse, when it has snapped into 1/2" pieces all around and you have to chase them out though that tiny hole. Took me 4 hours once to remove one of those glands.

[@JayKayKay7]

"A little bit of grease on the gland." My foolish heart be still. I like watching Adam grease up!!

[@deemstyle]

I really enjoyed this video; I found it super informative. I'm also beyond impressed with how useful that massive Reed vise is!!

[@jonpardue]

Aha! that's how those cyllinders come apart! This is why Abom79 gets my Patreon dollar a month. Hit him with a buck a month, keep this going. Never knew WD40 Specialist existed.

[@fiorevitola880]

You can use that big tap wrench for a barbell. That is a true Abom wrench!

[@gs-mt8zd]

Well, now I know how the rams on my little front end loader come apart, I need to change all the seals in all the rams and I never could figure out how to get them apart. Thanks for sharing Adam.

[@BigD-jc6rj]

The seal at 22:56 looks like a polypak. You are exactly right. It is a cup-type seal with an O-ring inserted to energize it.

[@jeaneitelman5699]

Hello Adam, my name is Jean and I love your you tube videos. I would really like it if you offered your t shirts in women's sizes. I love the "Booth Machine Shop" tee. Very cool!

[@justaguy427]

LOL.. My phone heard you ABOM.. Now ill remember to grease my machines that I don't have 😂

[@MoparStephen]

Great video. I have my grandfathers Craftsman floor jack from 1975 (it's as old as I am). The cylinder has unfortunately just developed a leak. I would really like to restore the jack for sentimental reasons. Timely posting of this video!