Caterpillar D2

[@joelknierim1456]

The resonance when that spring popped! Wow! Serious kinetic energy there!

[@raylarkin5004]

That was pent up energy!👍🏼

[@teddill4893]

Always enjoy the school of Squatch. Never boring... Keep giving us the back round and in insight.

[@dr.skipkazarian5556]

The "devil on the shoulder"......been there.....fortunately, the angel on the other shoulder (along with equal doses of patience, wisdom, and fear) prevents what would inevitably lead to disaster.

[@johntaylor1947]

You are a exhalant instructor you choose your words well and your video coverage is spot on.

[@jimsvideos7201]

That spring coming loose sounds like my new notification tone for my phone.

[@P61guy61]

Sell it as a ring tone ehhehehe

[@matty2helpfull]

I'm so excited to see 1113 running the finish line is getting closer!

[@edwinhsingmaster9135]

Speaking of bombs and pre-load reminded me of the time I lit a fire cracker and held it out the window. Fuses burn ALOT faster in the wind!

[@matthewmurray2402]

I'll admit I winced a little as you grabbed the threaded section of the rod when lifting the springs off the carriage.

[@joevanderwerker2255]

Did this project on my 5J back in '85. I have manuals up the kazoo on my machine, and paid close attention to the Service Mans book. Walked me through a lot of these types of dangerous areas. Working on class 8 trucks and equipment make you aware of potential danger spots. Your Attention to detail is awesome and I watch you regularly in your rebuilds. Still have my 5J, not running at present. Stay Safe !

[@billmeriwether9179]

Undercarriage is the dirty work. Covered in mud with a broke track is always fun.

[@jimsvideos7201]

Also the grease on the threads falls under the heading of doing good things for the next guy to work on it, because sooner or later you're the next guy.

[@jimsvideos7201]

@@squatch253 As long as it isn't the sharp ends of cotter pins and lockwire, those are the worst 😬

[@billhayward955]

When you started to talk about that little voice in your head saying "take the nut off and see how far stuff will fly" I for some reason started hearing the background music to the Caterpillar safety film, "shake hands with Danger".... Glad to see you took it apart the safer way. but it would be cool to see how far it would fly.

[@bok1080]

Then the devil on my shoulder said, but if you put a strap round the nut and wound it off 'from the side' you could keep the 'digital extensions' clear and find out just how far it would go....hmmmmm

[@cassiuspuckett8789]

Damn, that was fast!!! Didn't seem the video was that long. Thanks for sharing.....

[@bobpaterson1845]

Like many others was absolutely stunned by how much tension was on that spring 🤔😳💪💪

[@gregoryschmitz2131]

The sound of an impact wrench is music to my ears. I can see where Squatch wants to do it by hand, but you gotta love the impact wrenches and air tools (I worked with both and did the repair and maint on the compressor plant for a large freight facility)

[@stephenpeterson7479]

Glad to hear an impact. As a mechanic, watching someone using hand tools when power is available makes me crazy. But, it's your shop.

[@dansevern3291]

Actually, one of the neat things about watching your videos is that the "history" of these machines translates very well into more modern tracked equipment. Even if the system is more advanced, knowing "where it came from" kind of makes it easier to understand what's going on with the newer equipment. Thanks.

[@robertquast9684]

Loosening those springs I would add a second nut in front of the original. I have had springs on plows blow the threads out of nuts while loosening them.

[@bobglenn1476]

My wife was sitting across from me when you made your comment about idiot !! She LAUGHED a lot at that !! I told her that's why women out live men !! Unless we men know we are idiots !! Most mechanics just don't know !! Keep up the good work !!

[@bigmikex2333]

Your eye must twitch a LOT LOL!!! I have no business anywhere near a crawler much less working on one but I love this series! Great content!!!!!!!!

[@ronaldkearn3322]

Nothing wrong with impact wrenches! Saves your muscles and a lot of time. :-)

[@typrus6377]

Broken springs on the older girls is pretty common down here. Back up in Colorado, we had a D8T that the spring retainer broke on- left the blade on, released the grease to try and help remove some preload, pulled the slide retainers, then popped the alligator- that whole front tube slammed hard enough out to whip the track out from under it and pin the blade. In hindsight, we were lucky the sprocket kept the upper loop on and didn't whip over and slap the guy manning the impact

[@michaelshingleton1628]

I would remove the large bolt from Spring so I could I inspect especially around the head for any severe rust piting and more importantly for any cracks that show a coming failure. Plus since no painting I would want to cover the bolt with grease to insure it will not become stuck in the collar it slides in and to prevent rust. Since it is covered by the spring itself no one would notice the heavy coating of grease. Of course the grease will attract dirt but that is good. Ever notice a car whose frame is covered in a combination or grease and oil and dirt. The frame will remain rust free there no matter how salty the roads take it from an Ohio boy. Please keep up the good work. Enjoy you solving problems. Wanted to show you a way to lossen ball Joints and tie rods that always work that does not involve that dreaded pickle fork. This was taught to me in the 70’s by this ww2 mechanic. But kept my mouth shut. It was only with the intention of helping.

[@d.r.ledbetter2286]

9:30 That ring got my attention

[@BlindBatG34]

I don’t want to jinx you, but I am amazed at how nicely those bolts came out. Take a 10 year old suspension component in the rust belt and you’d be hammering on undersized sockets and reaching for the torch set. I’m convinced the metallurgy in that old steel must be better than what we typically see today.

[@halsnyder296]

I hate tensioned coil springs.... saw one go through a concrete filled CMU wall once... never share an old dealer business with multiple shops, never know who is worried across the center isle!

[@nena4215]

Shoot, the sound of that spring popping was really something! Thanks for the episode

[@altinfoil592]

Impressive metallurgy in those springs - in great condition after all those years outside. CAT and American steel producers knew how to build in quality.

[@neilshep50]

Peterborough UK. Saturday, 7.19am, my morning shower and breakfast have just been delayed by 18 minutes 27 seconds.

[@lachlandalmeida9442]

Hey finally got his hands dirty watching from Australia love the videos

[@robertrogish1038]

"Getting off track" Awesome pun. I've never seen this being done on an old Cat - love it.

[@bobferranti5222]

Deleting appendage should be on a tee shirt! lol Love all the video's Squatch, keep up the great work and explanations.

[@randallvos]

Those recoil springs remind me of the parking brake springs used on air brake trucks. Definitely not something to mess around with, the manufacturers went to a permanently crimped design because mechanics were getting injured and killed by improper disassembly to replace the diaphragm on the parking brake side........

[@santerresongarage7486]

For sure! I'm a firefighter and greatly fear truck fire for this exact reason. The aluminum center section melt and you now have projectiles coming at you.

[@humancattoy7767]

That recoil spring is massive. The sound of the spring unloading is not pleasant. I don't mind the impact, and it's not an everyday thing. I'm with you. Grease is a great thing.

[@jamesdiehl8690]

All that old grease may have saved you a lot of grief! Good old grease and cosmoline! It's almost Dewctime!

[@grosseileracingteam]

Those coils would be great on the front of an F550 plow truck.

[@aserta]

Having played with structure dampeners quite a bit, i can tell with 100% certainty, that springs under tension are the one thing you don't want to mess with, besides mother in laws. Even a small spring like that has enough potential force to smash all the bones in your hand if caught between a rock and a hard place. They're actually quite similar in size with ones i've seen tested for earthquakes, and i've seen one fail (intentionally) and the resulted force was enough to dent a piece of 1.5 mm thick steel into a "bowl". They are not toys, that's for sure.

[@dougrobison1156]

Impacts are way cool, the time they save you can be put to better use!

[@Tromador]

Funny. Only a couple of videos later you explain about impacts. I guess I just needed to be patient.

[@ronniewalker2881]

I really enjoy learning more about what you do the history of the D2

[@martinagoetz8485]

Comments on starting engines.horzontal boring bar.ran one.mainly manufacturing. Have do looking.big cities may have nothing can not do with one

[@jimciancio9005]

It's a great shame, they'll never make stuff like this again with the amazing amounts of overkill and redundancy they were made with back then! Now a days it's how much they can remove and still keep it semi safe and we know how that works out with wear and tear on equipment like this! Otherwise awesome video and answers lots of questions on these undercarriages, that I wasn't aware of especially the changes to single from the double spring systems. 😉

[@MirceaD28]

I could watch an entire video of you just cleaning the floor and totally enjoy it.

[@beginlivinglikeaboss]

I just had both my D4 springs out and rolling and dropping them all over. Never considered they were a bomb. Glad I got them back in place before your video, otherwise I would have been nervous lol

[@challengerhitchman]

When the idler and driver are lifted it shortens the length of ground contact. This makes the tractor easier to turn as well. This is still done today.

[@clydeschwartz2167]

Excellent video

[@raycollington4310]

That was amazing Squatch, I never viewed that assembly in that light.

[@baraktzfanya3980]

Dear Squatch, as a guy who work/maintain/renovate on old D4's from time to time, YOU are a walking talking CAT encyclopedia to me... Keep on.

[@dennishutchinson]

Glad you rethought what you were doing on that spring. Good example of stored energy. Great video! 👍

[@michaeltillapaugh9792]

Thank you for all the work you put into the videos. I saw a D7 posted for sale in Ellendale, MN on ebay. I thought of you and future projects. Keep up the good work.

[@kevinoscarson2941]

Have done the chain method many times, but I use ratchet binders to release the tension on the spring.

[@wildcatwilly]

Thanks for sharing your journey.

[@RockinRobbiesRoadhouse]

Another awesome video Squatch!!! Keep em coming. Love seeing these old machines

[@scruffy6151]

Just a wi bit of tension release lol.

[@helipilotuh1]

Guess I spent too much time around tractors when I was a kid, but I love the sound of an air impact, the new electric ones just don’t seem the same.

[@dhamma58]

Always a fun video when it is bomb disposal time....and such a lovely spring tone!!

[@michaelbaumgardner2530]

And now we tension with grease,another vast improvement.

[@fowletm1992]

Used to do alot.of d10 track frame rebuilds Those springs were similar size to a fully working D2 It was always a pucker Moment dealing with them The hitachi dealer down the road had a tension nut clock sideways in the tube (cross thread kinda) for a ex8000 excavator They ended up having to get the bomb squad to come in Cornered off a huge bit of the industrial estate then buried the idler and tensioner in the middle of the yard and let.it go with explosives to blow the nut out They managed to keep it outta the news but it spread pretty quick around the mechanics in the mining industry I love that you can roll the travk frames by hand That was another pucker Moment for us rebuilding them

[@Sundancer268]

I love the sound of an Air Impact wrench, the electric ones just don't sound as good. Don't be afraid to use one in your videos.

[@anibalbabilonia1867]

🤯man! Sounds to me like the undercarriage is the most dangerous part when working on a d2, or any other cat machines undercarriage! Wow! Good thing you decided to hit the spring with the hammer! Otherwise you wouldn't be talking to us right now! Because if that spring had come off like you said it would have! You would had loose a hand or fingers for that matter!🤯 thanks for pointing that out to us all! Great to know!👌👍

[@darinhassett4708]

I remember when i was in Basic Training at FT. Knox KY we were working for about the first time on the M60 MG a private (not me) pulled the shoulder stock off with the bolt to the rear..... the bolt carrier went right through the cinder wall luckly no one was in the way

[@paulg3336]

7:46 You don't have to cut the spring at all. It would be safer just to soften sections of the spring until it had no tension left in it.

[@JA-ux7dd]

just like that red screw with the yellow tag in your garage door tension assembly.

[@donaldgibson3121]

I always enjoy your videos. I especially like when you take the time to identify potential issues that can be dangerous when working on equipment.

[@greywerld2195]

Worked in a Cat shop long ago, had a D9H come in with the track frame split in half through the recoil spring chamber. Getting the spring caged had to happen before we could even split the track. That one the threads and nut were still good. The replacement frame from the boneyard was a different story. Our welder cut open the chamber and sliced the springs up so we could pull it out then welded the chamber back up so we could rebuild the frame.

[@johnraetz6748]

Love the videos, my Dad had four different Dozers while I was growing up and would have loved watching your vids, Thanks for the content....

[@ironman3406]

Recoil springs - you definitely want to be careful with them. The new machines are under even more pressure. Are you planning to re-bearing and re-seal all 8 rollers and both idlers?

[@P61guy61]

All of your videos deserve a thumbs up even before watching

[@RedDFilm]

Pressure wash those rollers!

[@rufusmedrano2962]

All that grease is good

[@donaldwallace7934]

Interesting about the spring loads on them...WOW!! I think I’ll stick to my Fleetline Oliver’s.

[@32jdmiller]

I understand the sweeping well. It stinks working in a dirt pile

[@nferraro222]

@Squatch253 Not sure if you look at old video comments, but I'm going to forget to mention this sooner or later: Brian Bloc (BCBlock02) has a horizontal boring mill that looks like it could cut it's way through a mountain pass. I'm betting it has enough reach to bore the cylinders on those pony motors. Might be a completely unworkable idea, but here's a shot of it in action kzbin.info/www/bejne/pn3di2aAjrWLhck

[@laneburgess1643]

I love this series.

[@martingardener90]

All through my career compressing coil springs was always accompanied by some amount of butt cheek clenching, never had one let go but the possibility is always there!

[@erik365365365]

You should do a video about that CAT poster! I just watched a vid about the history of tracked type tractors. It was great but I want you to tell me about!

[@jamesdiehl8690]

As Scotty said; "the more they improve the plumbing, the easier it is to stop up the drain"!

[@paulmanson253]

Would it be worthwhile to wire wheel those big bolts then find someone who can Magnaflux them ? Careful examination plus the dye penetrant ? The consequence of bolt failure is far from trivial,even the best outcome.

[@celsodominguez8565]

Thanks for the heads up

[@randogame4438]

Go to 10:35 to actually see disassembly begin :)

[@scrotiemcbogerballs8286]

Looking great buddy thanks for sharing everything with us

[@erik365365365]

This is the stuff!

[@michaelambrogio99]

Your eye looks better. Keep it up d2

[@littlejason99]

Just as things start rolling we hit the end of the video... can't wait for the next one!

[@seniorelectrician6831]

Great info and shown tell

[@BarryTsGarage]

“I am an Idiot”. Great reminder for me, Toby! 👍🏻

[@markbehr88]

Loving your videos.

[@mikes1345]

The difference between your way and my way is I say " I'm an idiot" after, not before!!!!

[@raytravis4097]

g,day Danger Danger will robinson, thanks for the warning mate cheers from down under

[@KennyKizzleRustyNutzRanch]

I don't know if this has been said yet... But I would NOT want to be the mechanic on the business end of that spring and idler! Ha ha

[@samsamson3623]

Hi there ! Thank you for the insight, what is the safety measures that could be taken to transport recoil springs ? With all the bumpy and rough roads , the recoil spring is subject to launch and cause damage. What is your take on that?

[@bcbloc02]

Clearly that machine didn’t run in a bunch of rock

[@vburke1]

Damn, that thing sounds damn near as dangerous as semi brake spring cans.

[@stepheard1590]

Like an undercarriage Ninja!

[@Fatamus]

And once again great Vijit ... Just ta let ya know when you grabbed the broom my eye started to twitch ... I'm allergic to cleaning myself.

[@wagon9082]

Good Video

[@Fatamus]

Never seen a broken spring??? WOW my 955E has both springs broken ... wonder how that happened? ... Ice is a big killer up here from what they tell me...

[@jamesaller9523]

Hey sqautch what was the paint sealer that you used in the farmall super m gear housing

[@jamesaller9523]

@@squatch253 thanku

[@dans_Learning_Curve]

Did you find anyone to machine your starting engine blocks?

[@_P0tat07_]

Was in the middle of browsing tools to buy. Instantly stopped looking at tools to watch squatch. 😬

[@colin8532]

You made the right choice sir!

[@_P0tat07_]

@@squatch253 😂😂 thanks!