Caterpillar D2

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[@terrystewart2070]

"I wouldn't do it for hire" Reminds me of a lot of volunteer work I used to do, there was no employer who could have ever paid me enough to do some of that stuff. Hence the phrase: "Labor of Love".

[@michaelwest4325]

Once again your devotion to keeping this tractor original makes it truly a one of a kind.

[@valuedhumanoid6574]

100% agree. His standards are some of the highest I have ever encountered. Most guys I know, myself included, probably would have just used a oxy/act torch to heat up the links and press out. And you just heard why that's not a good idea.

[@typrus6377]

Heya Squatch- At Cat we tended to use the 100-ton ram for most track work. Even on a 320-sized excavator pin (grease-lube-track, not SALT) that 100 ton may not break them free without a couple of raps from a 20-lber or some heat.

[@seniorelectrician6831]

Thank you all for the good questions, and thank you Squatch for the answers.

[@SuperMAZ007]

I asked a old school mechanic if they ever did any pin and bushings turning on a T-100M(that's a D6 clone). And he told me links did break at times and when the chain was 100% worn they just ordered a new one. No one ever bothered with turning the pins when he worked in the 1980s. However in the older day's when he was a kid(1950ish), he did remember mechanics doing the pin and bushings turning cause the chains where not available new the quantities where limited. They did have a press for pins and bushings but it was a stationary one probably similar to what Toby build here.

[@SalisburySnake]

At some point the labor and the downtime became more expensive than new tracks. Would be interesting to compare some old manuals and see when they stopped recommending it.

[@mikeengstrom8260]

Most contractors don't bother with turning pins and bushings on the smaller dozers. D-3, D-4 cause the labor/ cost involved isn't worth the second life of the track which is less hours than when new. When on run out you will end up with broken links and or pins. But the bigger dozers D-6 and above are worth it if they don't wait too long before the turn

[@scrapbmxrider16]

There are alot of aftermarket company's that do undercarriages today. Also down down is very bad. Faster to put new tracks on it

[@fowletm1992]

We've sent excavator tracks off for rotation but most modern dozens use sealed oiled pins so you don't rotate them you just replace them Iv watched the track shop at the cat dealer here It's an impressive operation, bloody hard work for the guys but they'll do a full d10 track in an hour or so They were very fast paced and lots of force They have 3 big track tables that drag the chains up as they go and a big press built into it, no idea what force it puts out but it was a 10in cylinder and it cylced the pins out in a few seconds

[@mikeengstrom8260]

@@fowletm1992 well in reply to your comment. SALT rails(sealed and lubricated track) are the ones you do take in for a pin and bushing turn cause you can get the most life out of a turn if you don't wait too long before the rail height and bushing wear has gone too far. The dry rails are very questionable as far as turning. And it's best practice to already have a replacement set of tracks if you want to avoid downtime. Track swap the machine is back in the dirt in 3-4 hours if bottom rollers and idlers don't need to be swapped out. Just my experience anyways.

[@ryanridgely7807]

Congrats on getting through the challenge! After watching your channel for years and years, I had to laugh about the "backwoods/farmer hack" question. 🙂

[@ronaldfulton7311]

Enjoy yourself at the show mate

[@paulwomack5866]

Mentioned by name! A true honour. You mentioned that people had suggest more general use of heat. You also mentioned that the pins and bushings are hardened. You really don't want to be applying any significant heat to hardened items - you're likely to mess up the original heat treatment (AKA hardening).

[@wilmamcdermott3065]

400 degrees max heat wont soffen pins and bushing

[@ron827]

GREAT explanations. With those tight tolerances, I can not help but admire the men operating the machines that made the parts.

[@bobpaterson1845]

I for one never thought that there could be so many technicalities at work on a simple crawler tractor chain 😳. Another great episode on 5J11 series 👌

[@jamesmichael3998]

Great job, enjoy the tractor show. Cheers from Jacksonville Florida 🌞

[@tractorhyatt7044]

Thanks for the video, Squatch! Hope you have a great time at the Albany Pioneer Days! 🇺🇲🚜👍

[@richardw.foxhall3392]

I think your self imposed devotion to keeping this D2 - 5J1113 as Original Equipment Manufacturer's parts as possible is admirable. The lengths to which you are willing to go to make this series happen by throwing your lifetime of knowledge, considerable skills in many disciplines and the physical amount of work that you have shown for our entertainment is remarkable. Is it any wonder that the channel has grown as it has, and that other "You Tubers" compare their work in reference to yours as ("well this isn't a Squatch 253 level job"). They show deference to your reputation of high quality work... or do it again till it's right or don't bother. Your success is well earned and deserved. Thanks for a really good time, each and every time I tune in.

[@Ihbinder14]

We have had good luck making push pins out of A2 and flame hardening them, you can order small pieces out of mcmastercar and you can still turn it easy in the lathe, or I have used an old truck axle

[@TheOutboarderTim]

@@squatch253 Squath235 Cant I help you would like to send you free 6140 round stock to make new pins

[@ivoryjohnson4662]

Squatch can make his track chains like he wants .....its his channel his dozer and we are along for the ride. And what a ride it is !!!!!!

[@garybelcher8259]

Great video. Very clear explanation of the reason for this exercise. My first experience with dozer tracks and track pins was in the early 70s working at a coal surface mine in the western most counties of Virginia. Lots of 20 pound sledge hammer time…. 🇺🇸🇺🇸🇺🇸🇺🇸

[@gunlover1955]

Nice follow-up, Thanks Buddy!

[@mabmachine]

This is a very good example of why I love this channel.😎

[@l0jack]

Ive got my eye on a 5U18338 D2 that I used to run in the 80s. I’m pretty sure its been sitting for almost 40 years. The steering clutches appear to be frozen. Actually there’s a second D2 5U942, but I cant make out the last 2 numbers. This is a very low hour machine used primarily for logging and brush hogging. It actually has a loader bucket on it with a rope trip dumper. I replaced the main clutch on it in the late 70’s.

[@bartonmcconnell2140]

Out of curiosity did you talk to your local cat dealer to see if they had a track shop or a rebuilder shop that would be able to do pin and bushing turn for you

[@harrowtiger]

The deformation on the push pin demonstrates the forces involved.

[@nena4215]

That’s incredible, I like the part about water!

[@jbcowherder6210]

the harder the material that those pin press adapters are made of, the more likely they will fracture and send out shrapnel. i think those are malleable steel for a reason.

[@steamfan7147]

I think your press worked out great, especially given the cost. For the press mandrels, I would turn the bushing mandrel down to fit the inside of an old bushing and then grind the OD of the old bushing .015-.020" under and slip it over the mandrel, the hardness is at parity and the dimensions are already close. For the pump issue, Harbor Freight (ya I know, but hear me out) has an air over hydraulic pump for $150ish that works great. I put one on a hydraulic hose press and it's been great.

[@steamfan7147]

@@squatch253 Understood, though I mentioned the air over pump because it almost works the same way as the hand pump.As the system loads up, the strokes per second slow down. So I have both hands and both eyes free and the pressure monitoring is done subconsciously by hearing.

[@nickbeaudrie9618]

I try to pay attention to the scenery in the background of the videos and haven’t seen the allis crawler tractor anywhere.

[@willieb58]

Willing to bet that the bushings were chilled in liquid nitrogen before insertion. Worked on a couple of brushing press machines that used that process. That's how automotive puts steel sleeves in aluminum blocks too.

[@danielyoder5928]

Yes water works wonders on rust seized pins and bushings. Loosened up a a bunch of them on a early 60's (?) D-8 that had set for 30 years. The owners were going to scrap it because it would not move. Removed the track pads and placed soaker hoses over the rails covered with scraps of rubber roofing. Ran the hoses off of irrigation timers every two hours to keep them wet. Took two months to get them to move but they are still on the dozer and they are still using it. Heard that trick from an old heavy equipment mechanic 40+ years ago. Have fun at the show!...

[@TheOutboarderTim]

I like what you are doing by keeping all this stuff up and running !!!!!!

[@Mmmyess]

The question I've had for the last few episodes is whether your set-up would work on the tracks from different size crawlers. But you answered it: you're getting out of the track dis-/re-assembly biz forever. Cheers!

[@andrewmawson6897]

The contact surface area of the roller press fit is significantly larger than that of the pin so it is not at all surprising that it takes much more tonnage to push the rollers out !

[@scottgm321]

I asked most of of those questions in my head. I've been watching you long enough that I know how detail oriented you are, and you have your reasons for doing things the way you do. Thanks for answering them. If you had used heat, you would have gone through several bottles of gas.

[@billandkathihensel3087]

afternoon just finished watching this video, one question I didn't hear you cover, I assume that when you had to dress the bushing push tool you had to add A shim washer between the push pin and the press plate to compensate for the material you moved when you dressed the pin in the lathe?

[@aserta]

15:20 Our D4 got two links replaced after they shattered. The cylinder was rated for 100 tons and the press looked substantial certainly making the cylinder the weak link, like you said. The tracks were only 11~12 years old, so not even worn in yet.

[@aserta]

0:34 a sight to behold. You don't see this every day with old track. Nice.

[@gregritter377]

Well you do deserve a day off enjoy your weekend

[@LoggerLloyd]

Always appreciate the explanations you give.

[@charlescastle5566]

Hope you have a great and safe weekend.

[@williamschmiedel6890]

Random thought, when reassembling, could you do a shrink fit, oven/freezer like the flywheel ring gear?

[@steamfan7147]

Not really possible, it takes time to assemble link+pin+bushing and get everything lined up.Shrink fit only works in a narrow window of time and the smaller the diameter the parts are, the smaller the amount of time you have to work. The reverse is also true, the larger the diameter, the more time you have to work, because the larger part, expands further for a given temperature. So a flywheel ring gear might expand .040-.050" while the track links and bushings might only expand .001-.002 at best.

[@dangerrangerlstc]

@@steamfan7147 not to mention just the sheer mass of the part to hold its temp longer.

[@steamfan7147]

@@dangerrangerlstc Very true

[@robertfeagans9298]

That is amazing pressures and dangerous to be around. Great video sir thank you.

[@dangerrangerlstc]

Truck or track on KZbin works on crawler rails. They'll repin rails for larger equipment like excavators and dozers. Not sure if they go that small. And if they did, I'm sure the cost would be pretty high if they could even get parts. They're based out of Indiana, so shipping would be huge too.

[@Flyanb]

Okay Squatch when you push them back together are you going to put the pins on dry ice to make things easier??? We push things together for OEM Ag and that makes things waaay easier!

[@Flyanb]

Probably have to go all the way to Cloquet, or maybe Hinkley? But it’s worth it, and it’s not terribly expensive. We’ve even used liquid nitrogen on parts with a real tight press fit.

[@oldcatmech]

I still would like to see you take one of the links with the pin and bushing, put it in the press you made with the 50 ton, put a master bushing on for the height center on the pin and try pressing it! I think it would have worked! Prove me wrong! Just for the fun of it!

[@michaelscriffiano9267]

Thank you...have a great time at the show.

[@cdachyk]

Great video! Although oil or penetrant won’t help disassembly a little bit of oil will go along ways on reassembly press. It helps prevent the galling of the two materials as you press them together especially on this much press. Love the videos!

[@bcbloc02]

As long as your heat is less than 600F you should not be getting lasting distortion in your press fit.

[@rickyjessome4359]

Thanks for the update squatch253. Enjoy your weekend. Cheers

[@paulmanson253]

One of the guys below made a suggestion about dry ice,which is of course a good idea. Obtaining it is the problem. A Plan B would be squirting liquid propane as a refrigerant. Will take things down to -40 degrees F. Make up a receiving chamber to keep the stuff contained,with a vent to keep the stuff off your face. Heat the individual track links in a toaster oven,below annealing temperature,then cool pins and bushings to cold soak. If nothing else,it should reduce the tonnage pressure on reassembling. Or,talk with your nearest medical clinic and buy 20 litres of liquid nitrogen from them or their supplier. Cold enough to fracture anything that is difficult, just throw it on a hard surface.

[@jenniferwhitewolf3784]

As you turn back the shoulder of the bushing driver, a spacer 'washer' of a thickness equal to the amount removed, can be placed behind it to move the pressing shoulder back forward to be in relative position with the pin driver.

[@troybriannatyler4962]

I work at ais construction equipment in michigan. We have a shop dedicated to do under carriage work. Any where from pad swaps. Rail swaps. Roller idler carrier swaps track adjuster rebuilds final drive rebuild all the way to lube turns for worn or leaking bushings. Mostley komatsu and deere since were a dealer. Sometimes cat but not often. We have two massive hydraulic presses for turns but it gets sketchy. Gotta have patients with this stuff.

[@lensholes7442]

I am wondering why you would spend the time to build a tool to turn the pins and bushings when I. am sure you must have local Cat dealer who has a press to do this job. I use to work for a Cat dealer and they had a number of shops that had the tooling to do the pin and bushing turn. In fact they had employees who were involved in this and would call on customers and measure the undercarriage. I must say you have done an excellent job on the restoration of your D2.

[@northmanlogging2769]

Not to mention the force is still on the pins and bushings in the same direction, regardless of which direction the chain is traveling. So even flipping sides, the pins and bushes will still be on the same worn out surface.

[@dans_Learning_Curve]

Thanks *CAT MASTER!*

[@anthonypirrello2473]

Off topic - what is the history and future plans for the FarmAll 350? You may have discussed this in past videos and if you did, I apparently missed it. Love your meticulous way of doing this type of work.

[@frritter8253]

Have a good time at the Albany show Toby; wondering, if vibration + the pressure would help release the bushings, something like an impact wrench effect? Good video - thanks for taking us along!

[@randallcarpenter5313]

The old ox-carts had dry wheel bearings for the same reason. I guess you could hear those wheels squeaking for miles.

[@kevinoscarson2941]

If you want to up the force, add 2 30 ton rams to your track press and have each ram try to center on the links. I would tee these rams to an air over hydraulic pump. That will relieve the bind you are facing. Where you ended up in pressures was right where I figured you would. Im a heavy equipment mechanic and do not do turns myself. I will shorten links or replace broken links, or split dry tracks and thats it!

[@jeffzimmerman2053]

Squatch, when I was in the operating world, a CAT mechanic told my company that we shortened our track life on our dozers and track loaders because we would do excessive backing. He said the sprockets would contact the bushings differently that going forward. Have you heard of this and if so, have you noticed different wear patterns from drawbar machines to dozing machines. Thanks in advance and enjoy your vacation.

[@cjb1kcb1]

Great information. Great detail and specifics. Question: (I realize the OTC hydraulic units are not cheap) An obvious, but expensive solution to adding hydraulic force might be to add another hydraulic unit in tandem with the existing unit. That could solve the force issue and possibly the racking issue. But is there a way to split the application of hydraulic fluid to the units in a balanced way to assure proportional force?

[@Thedudeabides803]

So informative. Answered my question about penetrating oil, I thought for sure that would help.

[@dustcommander100]

That pressing business was quite impressive. I've been around industrial mechanics for years, and I've seen the equipment they used. It's possible they used more force, but I'm thinking they didn't. I do remember some German gearboxes that had pressure ports for disassembly - the pressure acting on the end of the shaft in the bore of the gear would have the shaft acting as a piston. I suppose this may have been because there wasn't room to get puller jaws around the gear, Anyway, I was wondering at first why you made the track tool so it engaged BOTH the pin and bushing at once. After some thought, I figured that if both weren't pressed at once, the links would not be kept parallel, and would bind. Maybe after one side was removed, you might press the pin and bushing separately from the other side, but since the tool had to press both on the first side, there is no need to do the second side any differently - you still had to have the tooling and power to press both at once. Another very interesting and informative video!

[@kevinknight470]

Anyone who has been watching this channel for very long, knows that Toby does NOT do" back woods farmer hacks." He is very considerate on everything that is worked. Toby always does things by thinking through a problem, he does not "hack." 🙂

[@colinvoss8484]

I like how you do things.

[@andrewklahold2880]

Watching you press and turn pins and bushings is got me thinking my D8 needs them turned cause it has lose track, have not taken the covers off yet, it possible the lose track is the tensioner but I thinking more now it's pins and bushings

[@anibalbabilonia1867]

I don’t understand why some people will question some of your work ethics! I’ve been watching your channel and you doing your upgrades, rebuild and everything in between for a while now. And to me every thing you do is on par with manuals and any research you have done. And thanks to your knowledge I think we all can learn a thing or two! Thank you for explaining and showing us your techniques! I only have one question? Are those the bushings and links you’ll be using on the 5j1113?

[@dustinmoffett582]

I have had a brief stay at the local cat dealership and ran their track press not sure what brand it was but it was a 200 ton horizontal press the biggest track I pressed a part was a d4 I think.the press had two rams one on each side of the track it was kind of spooky to use at times

[@EricaMTB]

You could add shims or washer behind the press pins to compensate for wear.

[@kboy4526]

Just a thought. Could you use a piece of one of the bushings as the shoulder on the bushing driver? Turn the shoulder off of the existing driver, fit a section of bushing in it's place. Do a little grinding for relief clearance. This should eliminate the mushrooming.

[@darploin5071]

I saw that episode the track links are not by directional it only meant to go one way to get proper wear and to be able to shed dirt that's why they you can't reverse them like they're talking about in the comment section I listen to you when you speak and I saw that episode

[@robertschoemer1250]

Saw your Canadian friends lot visit segment and he had a track press, how does that compare to your build?

[@robertwinton2649]

I certainly am looking forward to the videos from the tractor show bring lots of them I love them

[@robertginther9248]

As every racer knows: ProJack makes, (or is made for them), an air over oil pump that puts out 10,000 psi. That's what lifts every Top Fuel Dragster & Funny Car. It's powered by the simple air compressor in their trailers. It might work for you in this case.

[@robertginther9248]

@@squatch253 Why did I already guess you had one? Love your show because it uses facts & truth for every repair.

[@josephwarner8349]

See you in Albany!

[@clydeschwartz2167]

excellent video the only way you could develop enough hydraulic pressure from a powered source would be with 2 5 inch hydraulic cylinders. You would use the one cylinder as a resovoir and power pack and when it is primed and free of air you would push on the rod of the resovoir cylinder and it would force the oil out and it would develop the pressure but it would take 6 wire hydraulic hose and it would be quite uncontrollable because it has to build the pressure and when it releases its all or nothing my uncle had a firewood processor with a huge knife to cut the wood blocks it had 2 5 x 36 hydraulic cylinders laying down and 2 of the same pushing there rod in and the pressure they made pushed 2 more cylinders down attached to the knife it was supposed to develop 150 tons of force and he powered it with a super M farmall and a truck transmission with a pto shaft driven by the tractor pto and the transmission drove a big hydraulic pump that moved the first 2 cylinders it would blast thru a 16 inch diameter oak log like butter and it cycled fast. Keep up the great videos Toby has a good trip to the Albany show

[@brycewiborg8095]

Thinking we're going on Friday. Since the St. Stephen show quit Albany is my last show every year. I still talk to the Vouk family members. The have a steam engine at Albany every year.

[@denistaramasso9251]

The more stroke used in a cylinder as this type the more loss in performance. Keep up the awesome videos. Denis Santa rosa ca.

[@npalen]

Another great video, Toby! Too bad it doesn't show all the extra thought and effort you put in. Thanks for sharing!

[@mathuetax]

I think repetition is one item that really wears on me when working on a mechanical project, and these track links certainly look dirty and even a touch dangerous at 100,000 lbs force.

[@johnbishop2060]

Worked at a John Deere dealership, and they had a track press, it will bust your butt, esp the track chains for the bigger dozers

[@kennybaughman5032]

Could you weld your push pins and machine them on your lathe to give you a harden surface to keep them from distorting

[@mikemcginley6309]

Hope you have a good time at the show. Could you do some walk around videos of old iron? Maybe go into a bit more depth on the machines if you know about them? It could become a new facet of the channel, "Forgotten Machinery" ....(sorry Ian McCollum)

[@Pilotman28]

You could have put a shim or washer behind the pins to bring the pins forward more when they needed to be dressed, no?

[@OldRedTractors]

I think you're headed in the right direction. And making what you to do the job is admirable. I have to do the same with my farmalls. Keep up the good work.

[@thinman8621]

One wonders how Cat could get the track tolerances and the heat treat right. If machined before heat treat, the tolerances would maybe not be right after heat treat. If machined after heat treat, the machining would have been tough. Tribute to Cat that the tolerances held and the heat treat was good enough that everything lasted under heavy use. Technology in the 1930's must have been pushed to the limit to get production volumes of this stuff built at a price anyone could afford.

[@MrJ4306]

cats cyl. for portable track press was 70 ton and 100 ton as a option

[@jksebright1]

if you talked about it I missed it but did you ever hear about electricity? they make electric pumps that well, never mind you are the maestro of cat shit.. so I will keep quiet. You do a good job .

[@thisolesignguy2733]

This was interesting. I curious about when you put the tracks back together. I assume you'll soak the link in rust eater, spray them with rust protectant, dip the pins & bushings in dry ice and press them (or if lucky drop them in)? What plan do you have?

[@jeffreykull4676]

i will be there on friday.if i see you i will say hi

[@dylanhockaday9878]

U can get a air over hydraulic pump to make it ezer

[@scrotiemcboogerballs1981]

And it gives him a great workout lol

[@matty2helpfull]

Could you put like dry spray graphite on the pins in between the press fit areas? That is a lubricant that repells rust and doesn't collect grit

[@haydnstevens3108]

When are you planing to do a test run now that you have the bonnet / Hood on

[@haydnstevens3108]

Cool Looking forward to the videos

[@phil6012]

I would have thought a dry film lubricant or graphite would be ok for use on the links.

[@SalisburySnake]

I wonder if two 30 ton cylinders might do a better job than one 60 ton. Or that might just cause more misalignment issues. You'd need a second hose assembly and a Tee that can take the pressure.

[@Luckie221]

Have you tried the air over hydraulic foot petal pump. Instead of the hand pump

[@jakobrebeki]

Is it OK if I can ask that when the cab is put on the tractor will it the tractor be able to fit inside the workshop underneath the door?....

[@markstrachan2121]

Great content as always Toby. I’m interested in how you are intending to get the pins and bushing refitted exactly 180 degrees from how they came from factory, will you go by wear patterns or are they marked in relation to the links?

[@ap1687]

I had the same question throughout the video. I suspect he meticulously put each of them in particular way and never mentioned it...

[@dans_Learning_Curve]

I'm fairly certain wear patterns will be his guide.

[@dangerrangerlstc]

I don't imagine being a degree or three out from 180 degrees will have much of an impact anyway. If it did, he'd have had to mark each and every pin exactly the same since it looks like he's stocking up for a few different projects and will mix and match parts as needed.

[@vincentphelps6325]

Double the length of contact with the slide and the bottom beam as a change?

[@phil6012]

OTC Air Hydraulic pump part number 2510A, 4020, 4021 or 4025.

[@rogercarrico4975]

moral to this video. You can never be too rich, too thin, or have too much pressure in a track press! 🤣😂

[@larrydavidson3402]

Good informational video

[@bobuk5722]

Hi Squatch, any chance of giving some info on the interference fits use to create the force fits?