Cat D4 undercarriage work (part 1)
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- เผยแพร่เมื่อ 16 ก.ค. 2024
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/ pacific.northwest.hill...
Here are the previous videos from this project: • Caterpillar D4-7U Rebuild
Email:
pacific.northwest.hillbilly@gmail.com
Mail:
PNWH
PO Box 2515
Hillsboro, OR 97123
0:00 intro and lighting
1:38 walkaround
5:15 chain and wear
11:17 rollers
14:00 sprocket and idler
15:50 removing idler arm
20:00 idler arm disassembly
26:24 spring removal
31:07 conclusion
#caterpillar #d47u - ยานยนต์และพาหนะ
This is one of very few channels where I prepare to kick back in peace and quiet to watch and always leaves me anxiously awaiting more though I know quality beats quantity any day of the week. Again, thank you for the extra work involved in inviting us to be a part of something most if not all of us wish we could do ourselves.
Me too
I'm late to the party but have been catching up on the series. Thank you for taking us along on the journey!
Don't you just love it when someone takes the cheep lazy way out ? AWESOME! Hope you never have to change the rollers 😭
A painting tip instead of just taping is to use aluminum foil with tape to cover things like the hydrualic cylinders. The foil forms around odd shapes easily and is faster than just taping.
Awesome, a new episode of the rebuild of that 1950 Cat.
Can't wait to see it in action eventually.
You're doing an absolutely outstanding job on it.
Another “tip” about crescent hammers, er, wrenches. Take it apart and you’ll see a “stop” in the grooves (a long flat spot interrupting the end of the grooves) making up the rack section of the slide. Use a cutoff wheel to slot that section so it’s a continuation of the rack. Make the “gear” section longer with nothing to block the wheel. This allows the tool to fit larger bolts. The slide part can move enough to fall off but the trips you save from grabbing a bigger wrench will make you modify every crescent hammer you own.
Great idea!
I feel so invested in this. Thanks again for the great content.
The rounded bolts, weld nuts to the head and heat the surrounding area and leave it for 12 or 24 hours and then soak it with penetrating oil, preferably Kroil for a few hours then the should be easier to come out my friend! There’s so many things I’ve tried in the past to keep from having to cut them out or twist them off! Because that’s when you have trouble! Take your time and try that I’ve come back a few days later and with a impact or wrench they came right out, when dealing with rusty bolts in a tight place to me it’s a lot better to take your time! If you have a air needle scaler they work great for knocking at least 90% of the rust off! Thanks for sharing Matt and good luck my friend! Kirk from Louisiana! 👌🏻🤙🏻🤙🏻🇺🇸
I love this repair! Love that you replace hardware all the time.
Matt, I gotta confess - my only disappointment with your videos are... you don't have a million subscribers! Like most, I'll never wrench on a dozer and I really don't have any aspirations to. But it is so cool to watch you work through different issues. Solving problems or making work-arounds is a large part of this enjoyment. Sometimes I find myself saying "why didn't he just do X, Y or Z" - and most of the time you give me an answer in the very next minute or two. This helps me keep my own mind working and trying look for the second or third way of doing things - always a good talent no matter what kind of job/work we do.
Having been in film production in a prior life I understand how much time it takes to create these videos and you need to know how much we ALL appreciate that effort. I recommend your videos to my friends as much as I do Andrew C and Marty T - good company!
Please give Charlie some love for me - I still miss my best friend Waggy-Tail.
Wow, it is hard work with everything rusted on so tight and previous poor work. I would guess they were doing repairs on a work sight and just slapped it back together. Keep the faith. There is no turning back now. Once you get it going you will know what needs more work. Either you like a challenge or like being tortured. May the force be with you.😮😮😮😃😃😃
Thanks for all the extra lighting! Really helps the viewer.
I think this project is quite daunting for a backyard car mechanic. I'm impressed!
The roller guards are welded on to prolong their life. Been mining and road building since the 70's and can' t count how many I've welded and arc aired off again. Usually they are torn off as hard rock is unforgiving. For a first timer you are doing fantastic.
Man tools and rounded off bolts. The struggle is real and the tools are awesome. 1" impact gun and torch to the rescue. Great channel and even better project.
Nice job Matt! I so enjoy your work! The stand up lights- I did similar. I used an old microphone stand and zip tied a harbor freight light to it. The second one I made so it articulates. I ran into the same issues as you- no light where I needed it. I'm too old and beat up to do your kind of work anymore. So thanks for your work! I get to live vicariously through it!
It's a pleasure to follow your ability to assess your options. It's a great video. My dad took the grossers off our little 1936 D-2 and took them to the Cat dealer back in the 60s and had them built up with hard surfacing. The second tractor I learned how to run. Keep them coming.
This has all been GREAT viewing and I am really impressed with your tenacity. I had a thought, maybe the guy who is selling out of all those CATs may have some parts to sell cheaper than online and would be helping someone local. He gave a great deal on the engine...
This is such a fun series. I have been watching since episode 1. Looking forward to seeing you getting this thing running again one day.
Kinda lookin like she got rolled down a hill the hard way according to the damage you've shown which would explain why the rock guards are all welded on...bet ya if you cut the welds on the bolts you'll find that those bolt holes are all screwed up from having broken bolt cut or drilled out....definitely a Jonny Cash special...once you get it all put back together you should call it psyco billy and the cottonmouth
I just enjoy your videos. You are a can do guy that refuses to give up. Keep up the good work.
I absolutely love these videos soon as another video comes up on this I'm just strait on it loving them mat👍
Matt, I have great respect for you. Anyone who undertakes a job like this is very brave. Looking forward to more videos.
Excellent video, your better than a restoration TV show.
Awesome job man! I've been following since the beginning and I'm always stoked for a new episode. Can't wait to hear it run! I'm in washington state and I'm from Mississippi. So I'm a PNW Hillbilly myself. Been turning wrenches and running equipment my whole life.
As you thought, after the spring broke, they put the spacers in to get the track back in adjustment. But because the spring was broken it didn't have the correct travel and when the inside of the track fills with snow or mud they ride up on the idlers and sprockets and the spring has to compress to combinstiate. The broken spring could not so the arms bent. You are this far in to the undercarriage, now is the time to split the tracks and go through the sprocket hub bearings and seals.
"It's been raining really hard around here". Now that's an understatement. I'm on I-5, halfway between Portland and Seattle, and yep, "raining really hard' is putting it mildly.
It's always interesting to watch you learn your way through this old thing.
Love the thought process and your sense of humour. Gives me a break in a hectic day. thanx
great video well explained you sure have your work cut out on these track frames . you are lucky CHARELY takes a part in helping .great to see you give him some attention. looking forward to part 2 on these frames be careful not to get hurt keep safe CHEERS.
👏🏻👏🏻👏🏻, welcome Matt my friend, always excited for the next step brother! Thanks for sharing Matt!
Thanks for bringing us along!
My channel name fits this project perfectly! Life is a learning curve! Hindsight is 20-15! Better than perfect vision!
Great content. One thing I might have seen, the rollers under the spring next to the spring arms looked like it had a lot of slag in it. I used to run a D9 and the ones in the rock pits would get rock and grit in the rollers and wear out a lot faster than the ones clearing timber. Just a thought, I really enjoy this post. Keep up the good work.
Lol yeah I saw that when I was editing the video... good eye!
When I was a teenager, I worked summers at a JD service dealership rebushing the tracks on dozers. Any problems with undercarriages started with removing the tracks from the undercarriage. You remove the master pin for each track, and you can drive the tractor off of the tracks. Once you remove the tracks from the undercarriage, you can service the undercarriage components a lot easier because you can remove all the tension on the springs, etc.
Hillbilly, I'm not a commenter nor a reader of comments. I read some of your comments and I would like to say I'm in the boat with the fellas that really enjoy seeing PWH show up on the list of new vids in our subscribe section.
There's just something damn enjoyable about a regular guy, actually trying to solve problems, armed with common sense, a bit of working mechanical knowledge and an unusual project.
The D4, around 50 yrs old was designed on a drafting board. We can see the functional simplicity and witness you apply your considerable problem solving skills in action with all the follow through. I have watched almost all of your content now and I think that you have a real shot at attracting the same audience that watches Mustie 1, VGG, Diresta and many others. So if you ask people to like, subscribe and comment I believe us fellas out here, will. Your honest approach to your projects are entertaining, informative and for ALOT of us SATISFYINGLY worth our time.
Thank you.
Glad you enjoy the videos, thanks for watching!
You should check with the man you got the motor from. See if he has a pair of frame rails he is willing to part with at a decent price. These have been "sprung" ! You will be dealing with sheared off bolts over and over again going forward. That's why you see everything welded. I had an operator do the same thing to an International 500-C by trying to remove a huge pine tree by bashing the root ball over and over again. I had that machine in the shop every couple of weeks replacing undercarriage bolts with stronger and harder bolts each time. One of my other operators finally told me what he did. I was lucky enough to have International Harvester replace the machine as it was only six months old. Had they found out how it was abused, I would have been SOL ! I found out after the machine was replaced. I fired the operator !
There's always that one guy who is a real hero,just so long as it is someone else's equipment. I wonder just how many of his girlfriend's cars he wrecked.
From the looks of it, someone hired the guy I fired !
Reminds me of the undercarriage of my old Case 310 dozer. You're making good progress though so hang in there.
Great post thank you for making it. Overall, your undercarriage looks pretty good I'd be happy with it, certainly could be A LOT worse! I'd recommend cornhead grease for lubing the rollers and idlers, it flows yet stays in place if your seals aren't perfect.
Another great post. You seem to be doing a pretty good job keeping it together (at least on camera). If it were me, you wouldn't be able to be in the same room. I laughed a lot. Can't wait for the next one. Love the dog.
I think you doing fine matt do what you think best but I think you're right about all that
Hey neighbor, you'll love that Hyster winch. I had a 7U with that exact winch and pulled a stuck D8 out of the mud with it. BTW, the best penetrating oil I've ever used is 50% Acetone + 50% Dextron ATF..
Try some #2 diesel and ATF mixed 50/50 in a spray bottle on those rusted bolts. Also works good in spark plugs holes of frozen engines.
Yup. and warm up the part. just warm not too hot ..... let it set for as long as you can and reheat several times if you have time. start the night before... but who has time for that?
griswalds would be proud of that lighting setup
Lots of tenacity, I admire your work
I like your assessment process and attention to detail. Tracks are work, no matter how you look at it, old or newer.
Clean up the undercarriage and protect it with new paint and I believe you’ll have a good piece of equipment for a lot of years, it’s not like you’re going into business with the dozer! I thought you were going to work your property with it and if so she should perform pretty well with everything you’re doing! I love the little dozer and believe you will too! I’m always waiting for your next video, exciting and educational brother! I learn things from watching you even though I don’t have the acreage to do anything! lol But it exciting to watch you bring it to life again! I hate seeing machinery just sit in the weeds and go to waste! People like you are a blessing to these old machines! Plus we enjoyed watching a rebuild like you’re doing! Thanks again Matt my friend!👌🏻🤙🏻🙋🏼♂️
It's like watching someone build a pyramid single-handed. Chip!CHIP!Chip!DINK.CLANK.THUD. Your persistence is impressive!
Tough one for this video! Good thing you have patience. Thanks for bringing us along. I learn something every time. All the best everyone@
Good job Matt
Get in touch with Truck or Track. They are undercarriage experts.
Great video, I am fascinated with what you are doing, please keep us informed. Thanks for what you do.
There comes the point in every mans life when he needs a 3/4" impact gun.. seems like you reached that point :)
And as for undercarriage, an old training video stated track undercarriage makes up for 20% of the initial cost of the machine, but 50% of the maintenance costs.. seems true.
Can't wait for the next one - great work.
*- Really Good Tutorial ! ! !*
*- It is so good not just because of the proper technical research detailing you have done, but also the the problem solving process that everyone would have gone through,.*
*- PLUS {most importantly}, you modeled for us all how you deal with what life delivered to you yet another chance to advance your competence at striving for all of us to be inspired by.*
*- Good job. Thank you.*
*- AND, imagine all the shop teachers and parents discovering how useful giving this and your other videos to the youth in their charge really is.*
I've heard if your are not in rocky material there is no need for rock guards. Well up here, if you don't bring them in a heated shop occasionally they get plugged with snow then ice.
Also, I found if a dozer has been operated with the engine side covers removed the tracks throw snow, rocks and dirt up high enough to get into the engine-bay. Found a similar article in the "Selected Articles From Service Magazines 1932-1950." Where they razed the intake on the motor graders to keep the breather out of the snow and mud.
Sept. 29th 1950. p.168
No.12 @ 7F1500; No.112 @ 8F2329; No.212 @8F1919
I really admire your tenacity to preserver on this project. I don't see it lasting the time that you hope but for sure, I see a good hard service job oriented ten years to even twenty if its not your first go to tool for any job... meaning a excavator for certain jobs or other to take some of the pressure of misuse. We say we never will but there are the days we don't brag on either. You are really my favorite show me how or DIY... got to be one of those someway... your a hella of a fine hard worker
They probably welded it on because they broke half the bolts off. Looks like the rebuild is comming a long. Can't wait to see it in action.
The rock guards can take a lot of abuse. If they were run while loose the bolt holes would wobble out. A quick fix was to grab a handful of 7018 and put it back to work.
Looking good. I know you are getting excited. Thanks for sharing and have a great day.
All caught up on this series 😂
Starting to dig into you're other videos 😊
Keep posting Matt you're videos are great 👍
Yep undercarrage parts are high dollar. Ive seen bushing worn so bad you could view the pins. Also seen sprockets that would windmill. The 7U we have the undercarrage is like yours except the sprockets havent ever been cut of and replaced so I think its all original. We also have a CleTrac. Crawler Wierd tracks? It has pins and bushings and then a extra outer bushing that spins freely around the fixed bushing.
Great job, thanks. Appreciate your filming this; can’t be easy.
Great video can`t wait to see it run. keep those videos coming.
best part of the video... 26:05 thru 26:23
I enjoy your measured approach to this. Sorta, if at first you don’t succeed, try,try,again. Then give up. No use being a damn fool about it.
You have FOUR kids to feed…three human and one machine. 😬 Thank you for your video.
Looks like a good machine coming together. Also looks like you lucked out on under carriage, too. It should last you for a long time. Think of all the fun you're going to have on your own bulldozer,like learning how to operate it.
Amazing work.
Ready for part 2!
I'm still enjoying this project and look forward to a successful outcome.
Another great video Matt!
Patiently waiting for part 2 ohhh I’m invested.
REAL MEN don't shy away from the rusty bolt jobs! You're doing great!
Hah! I commented below before getting near the end of the video, and you have answered my question about the running costs to this point. Thank you.
Great job, I'm working on the steering on my late 1970 JD410 backhoe and it is challenging to get thing apart.
Wow…certainly a ambitious project…..in the end you will have new skill sets and a machine..I did a very similar project on my first dozer a 350 John Deere..one of the first ..no letters …just a 350…three cylinder and much like your project with every component replaced or rebuilt….I did spend almost $20,000 and after using on a few jobs sold it..and bought a more modern dozer
Good luck with yours
Thank you, I look forward to your videos, please don’t get to disheartened, she’s an old girl and your getting to the knitty gritty running components.
Good lighting improvement
Keep up the great work. More power to ya!!!!
Great video !
Those undercarriage rollers look just like the rollers on our 1968 96J D5. To check the oil in them you park the machine on a hill side then check uphill side. If needed add 30w oil.
That blade frame looks like you could heat it in certain spots, your judgment on the area! I’d have to see the bent places if I were doing it! But you could pull it over with a coma long or jacking bolt set up and heat the designated areas slowly and let it cool slowly like maybe throw a fire blanket over it for a slow cool down! Matter of fact a jacking bolt set up would pull it where you want it and hold it while it cools! 🤙🏻Just my advice Matt and I just want to help brother! I worked in a Machine Shop/ Fabrication shop for 37 years so I’ve seen a lot and learned a lot from the machinists! Thanks for sharing my friend, I hope you and your family stay safe and healthy brother! 👌🏻🙏🏻🤙🏻🤙🏻🇺🇸🇺🇸
A Tough Round! Good on you for dealing Bro!
Track Roller 1 and 7 is all you need to check. Love your videos.
Good Job, keep up the good work!
I like watching you. Keep up the great work 👍
Lot of work still to do enjoying the videos
That poor old Cat must have been abused and thrashed until it finally gave up the ghost. Bringing it back to life is an epic 'labour of love' and it is great to watch!
Thank you for 30 minutes of wrenching!
Really interesting videos. That undercarriage is putting up a real fight but its good you are sorting it out. Even though its about 50% worn I think that there are still hundreds of hours work left. I can't help thinking that it would be a good idea to free up the rest of the bolts and replace the rounded bolts now while it is stripped down. Once you start to put it to work it will be more difficult to come back to it, especially with the blade on.
Extremally interesting Endeavor ! Following up after some Hack has been there ! Good Job ! Lookinf forward to the next episode !
Sorry to see all the welding that has been done. Electric glue gun is seldom a good choice in such instances. Likely done when the rollers were replaced. I personally prefer the Alemite button type rollers. When maintained properly they will outlast the oil type which will develop leaks and self destruct. I'm really enjoying your adventure and your smart, but fearless approach. My first Cat was a 1947 5J D-2.
Just remember, when the bushings wear down a bit more, you don't need to replace them. They can be turned 180 degrees and the rails, rollers and idlers can be built up if needed for way less than half of what new parts cost. Turning the bushings can extend the life of the average undercarriage by 60 to 70%.
Great vid ty
Matt it is fine, It will last a long time. It is not like your going to ride it to Sturgis South Dakota for the Motorcycle Rally and show..
Such a great series! Between you, Squatch253, Kenny Kizzle, and now Kyle Christ (thank you, Toby), there is a lot of old iron being saved from the scrap heap. Curious to know what the current running total for parts, tools, etc. has come up to so far. Thank you.
Towards the end of this video he shows the total up to this point.
The lights are great! brilliant way to illuminate... ( pun intended😁👏👏)
Another great video. I believe these tracks will last you a very long time. Good luck.
Cool video.
I would fix all those bolt now so later on it’s no a problem and I would normally split the chain on the tracks for more room
Definitely heat the frame where the bolts are so they come out and never seize is your friend
Keep up the great work 👍
Keep going. You just need a plug from somebody to get more eyes on this. This is kind of like reference material as well. Like belongs in a library of how to content.
I have enjoyed this endeavor you have undertaken . Kinda wish i still lived out there i would have helped you with all this . But being back on the east coast in the snow belt they throw salt on the roads . That equates to rust , a lot of it to say the least . Your bolts aren’t that bad once they break free . As a kid living here deep solid rust with limited tools , we had to make due . Reuse parts and make things work. Lately I’ve started using freeze off penetrating oil . And just some heat . Which I’m sure you know .
Sometimes i use to have to grind the facets of a bolt down to the next size down so i could get a firm grip with the socket . It’s tedious but sometimes it gets the job done . Just an idea that may help . But no substitute for a second set of hands .
I enjoy your efforts. Thanks for sharing .
Oh and it makes me laugh ........
Aaahhhh bad time dog ! Lolol