What’s the reason for Cat high tracks vs standard

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  • Опубликовано: 27 янв 2025

Комментарии • 730

  • @Viciousnun
    @Viciousnun 2 года назад +499

    I’m a pharmacist in a city and will never use one of these. But I love these educational videos!

    • @sdsuch4353
      @sdsuch4353 2 года назад +5

      Thanks for your perciverence, diligence, and abilities to stay on the path.

    • @fourgedmushrooms5958
      @fourgedmushrooms5958 2 года назад +13

      Save and retire to semi rural. Get yourself a subcompact tractor. Great fun

    • @prosperity4444
      @prosperity4444 2 года назад +20

      You can use it to push drugs

    • @StuffBobbyDoes
      @StuffBobbyDoes 3 месяца назад +3

      Not educational at all, just opinions.

    • @stephenblack8804
      @stephenblack8804 3 месяца назад +2

      Never is a long time, there was a time I would have said the same, now have a tracked machine on the farm.

  • @ianbarnes8593
    @ianbarnes8593 3 месяца назад +148

    Cat dealer field serviceman for almost 40 years and the elevated sprocket design was a gift to us guys. With the old press-on sprockets and final drives you needed to take a ton of tooling out to site with you. There was a myriad of different adapters, legs, hydraulic cylinders, etc, each specific to whatever model of tractor you were working on. Not to mention the wooden blocks and jacks required to lift the machine up out of the track frame. Probably took the Oxy-Acetylene gear with you too just in case! Guys moan about the complexity of modern equipment today and in some respects they have a point, but their bodies will be thankful for the modern technology in later life. Those old machines were brutal to work on by modern standards.

    • @roraev9296
      @roraev9296 2 месяца назад +7

      I've worked in Heavy Equipment parts for most of my life. "Low track" machines have a lot more final drive seal failures than the high track machines. This is likely because the low track seals are pretty much sitting in the dirt all their lives. By itself, seal failure probably isn't much of a reason to update the original design, but the first thing to fail in a conventional drive is the bull gear pinion, generally taking the bull gear out with it. The planetary design has it's own demons, but high track finals don't have near the failures as the early style.

    • @2010bigfathen
      @2010bigfathen 2 месяца назад +2

      Exactly what I was thinking, the hitrax are so much easier to work on

    • @JamesSmith-xs7sr
      @JamesSmith-xs7sr 10 дней назад

      Helped remove/fix a leaking final drive on an older D-7 while in the Gulf War (24th ID c/co erd engr bn) NO power/air tools, performed in the field with intermittent wind storms, lol. Had to dig a pit under the diff to get access. Not fun.

  • @digger105337
    @digger105337 2 года назад +256

    I've run many of both types. The high track offers 2 advantages, being up higher helps visibility , blade corners especially. 2 keeping the drive sprockets up higher clears debris by gravity and is less likely to pick up wire( straight or barbed) and other oil seal cutters that get wrapped up around the final drive. Part of this " up high" drives keeps water from entering the drives if the seals do get damaged.

    • @RAkers-tu1ey
      @RAkers-tu1ey 2 месяца назад +7

      Yep, on all points.

    • @vacaslocas1716
      @vacaslocas1716 2 месяца назад +18

      I learned more from this comment than I did from the video

    • @youtubeaccount9058
      @youtubeaccount9058 2 месяца назад +6

      @@vacaslocas1716 I didn't even watch the video. When I see something interesting but simple I just go straight to the comments to the answer.

  • @viking7558
    @viking7558 2 года назад +104

    I have been operating heavy equipment for 48 years, since I was 15. The visibility off the Cat high track is so sweet we could actually grade off gravel on US Highway jobs to the same degree as a road grader. And back in the day I actually was finish grade on a grader using the old style whisker stakes. Never had a problem on a slope, it feels like it is unstable but the majority of the weight is lower in the unit. I will choose a high track any day of the week!

  • @johntyson2234
    @johntyson2234 2 года назад +153

    As a long time dozer operator with a bad back, the most important thing to me is comfort. Those low track dozers beat the crap out of you compared to the high track Cats.

    • @fox13z400
      @fox13z400 3 месяца назад +7

      why? can you explain why it being a high track design would change the ride quality.

    • @carlachambers3771
      @carlachambers3771 3 месяца назад +5

      Nope. You're just old.

    • @buddyrehd67
      @buddyrehd67 3 месяца назад +12

      My uncle ran d9’s for 40 years in rock pits. He claims the same thing that high tracks helped a lot with that.

    • @brianw8963
      @brianw8963 3 месяца назад +29

      I’ll tell you why the large high drive cats ride like a Cadillac compared to the old style. They have what is called “ live bogies” that suspend the rollers and idlers. They have large rubber pads on the underside of the track frame and the tops of the bogie frames that cushion the ride. There is your answer.

    • @larrybremer4930
      @larrybremer4930 2 месяца назад +4

      @@fox13z400 I clicked on this video out of curiosity and instantly saw the "why" behind the two designs. The drive sprocket needs very heavy axels and gearing to handle the loads, and these assemblies appear to be solidly attached to the frame, ie: not using a suspension. This means the low track has an axel on the ground that is unsprung so you would feel every bump and rock. On the other hand the high track keeps that drive axel off the ground, so the idler wheels that the vehicle actually ride on can use spring or torsion rods to give them some movement to soak up suspension loads. I would imagine the high track is also easier to do most forms of maintenance on the drive assembly. It would seem the only disadvantages of the high drive would be a likely higher manufacturing cost, and a higher center of gravity so the low track may have a slight advantage operating on slopes with more of its heavy parts being lower to the ground.

  • @greggmcclelland8430
    @greggmcclelland8430 2 года назад +183

    I just retired from Cat. When I joined the company in 1988, one of the Track Type Tractor project engineers, George Alexander was recalling the first customer they showed the high drive to. The customer was so excited that his final drive problems were going to be solved by the new design. You are right on just about everything you talked about. I'm not sure about the stability comments. It is so dependent on track width and what machine you are comparing it to. As far as underpowered versus overpowered, there is a magic weight to horsepower ratio of between 220 and 250 pounds per horsepower. Depending how it is configured Blade/winch/ripper/ tracks that ratio can make it feel like you are underpowered. If your track is slipping because there's too much horsepower, it may feel like you are doing more work when you are not. You are just wearing out the track.

    • @C_CEQUIPMENT
      @C_CEQUIPMENT  2 года назад +16

      Yep

    • @berryreading4809
      @berryreading4809 2 года назад +28

      I had the pleasure of working at a very small CAT plant as an outside contractor doing several interior retrofits and office additions a few years ago before they moved operations back home to Peoria/ overseas... While sad that they shut down, getting to work there a few times over the years was a blast! The plant manager had been working there since the day they opened the facility (just a starting position at the time), along with lots of the line employees/section managers who were still there... One of the few factories I've worked at where people went well out of their way to help me with countless things to get the projects completed safely, without interrupting workflow, instead of trying to shut down thier section for a nice break or spy on me in hopes of getting some kind of safety violation reporting brownie points...

    • @Agnemons
      @Agnemons 2 года назад +9

      What most people don't realise is that the point of maximum traction is that point just before you start skidding.
      Although on wheel tractors max traction is with about 11% slip.

    • @Tipsy652
      @Tipsy652 3 месяца назад +11

      Former cat employee. I know that everyone took a lot of pride in putting together these tractors down in east peoria. We all took quality to heart.

    • @Agnemons
      @Agnemons 2 месяца назад

      Your ALWAYS wearing out track.

  • @ricklodin2068
    @ricklodin2068 2 года назад +153

    I remember having the dealer out of MN flying us to Peoria to tour the Cat plants. One thing that we were told as they were building a D10, 1979, was that they specifically stated they could get more horsepower to the ground with this high track design. The other thing I found amazing was that they assembled the D10 fully, ran it through a battery of tests, then disassembled it for shipping.

    • @philipward7846
      @philipward7846 3 месяца назад

      Cat assembles in East Peoria building SS.

  • @eicdesigner
    @eicdesigner 2 года назад +15

    Yet another technology with so much detail most folks will never even think about. Thanks for letting us get a glimpse into your world!

  • @billrobertson1507
    @billrobertson1507 2 года назад +165

    I've run both for many years. I'll take a high drive any day. When you shovel the mud with vegetation out of a flat bottom versus a high drive you'll understand what I mean. The high drives last longer for trackwear but they also cost more.

    • @Vickvineager
      @Vickvineager 2 года назад +7

      The biggest pain in the ass at the end of the day.

    • @SMOBY44
      @SMOBY44 2 года назад +2

      I always thought the high tracks had higher center clearance, just a novice thought.

    • @scotcoon1186
      @scotcoon1186 2 года назад +7

      An extra 3 feet of track means the same number of turns of the track goes a lot farther at the end of the day.

    • @reubeng2110
      @reubeng2110 2 года назад +4

      wow you cleaned your tracks out i rarely seen a operator do that they didnt want to get dirty instead when they were off shift and the trucker says i cant go down the road like this the shift boss always seemed to think it was oilers and mechanics job since we were still working

    • @wvjeepguy8178
      @wvjeepguy8178 2 года назад +1

      99% of operators won't touch tracks if there is an oiler around.

  • @nicholasherman8155
    @nicholasherman8155 2 года назад +105

    So in my experience it has always been about traction. After running both flat track and hi track you can get a flat track into anything but can’t get it back out. When you are pushing your track is pulled tight on the ground with all the rail slack on top between your final and your idler. When you reverse all of that goes loose on the bottom of your track frame. Now the top side is tight. With all of the slack under your machine the track pads won’t grip the ground and let’s you slip in reverse where it never would going forward. Where with the hi teach the ground side of the track is always tight because it’s pulling between an idler and the final without bunching on the ground.

    • @greggmcclelland8430
      @greggmcclelland8430 2 года назад +12

      Also, most of the high drives have suspended bogies on the track rollers that keep contact with the ground giving it better traction on rocky underfoot soils when the tractor is under load.

    • @technicalitems731
      @technicalitems731 2 года назад +11

      Damn good observation

    • @Snowbatman99
      @Snowbatman99 2 года назад +8

      Yes, you are exactly right and thankfully there is another operator out there that has been paying attention, I usually get a blank stare when I try to explain this.

    • @brianbonney2895
      @brianbonney2895 2 года назад

      To the one that made the original post you are wrong you get better traction when the tracks is loose on the bottom... It will conform to depressions and hook anything on the ground whereas if it's tight it's just hanging there. Logger!

    • @jeremymyers5643
      @jeremymyers5643 2 года назад

      Was also under the impression your less likely to throw a track this way, as the slack is never under the machine.

  • @jz1340
    @jz1340 2 года назад +53

    I live in the Peoria, IL area. The home of CAT. Back in the 80s my neighbor, a CAT engineer, was assigned to the CAT's High Drive initiative for the D9. The main reason for moving the drive sprocket was to reduce wear and damage to the unit. There were problems with track supplied by a company in Italy and my neighbor made several trips to Italy resolve the issues.

    • @carrollsanders9376
      @carrollsanders9376 2 года назад +7

      HYDRIVE was done to allow room for the Differecial drive axle and steering motor, still have the Popular Mechanics Magazine on it, was a collaboration between cat and Mitsubishi, one of the first prototype dozens actually used a steering wheel, it later became the cat Challenger Agricultural Tractor.

    • @devilsatan2973
      @devilsatan2973 2 года назад

      @@carrollsanders9376 You really trust everything the magazines tell ya? I don't! Their a combination of fact & opinion. With more opinion, less fact.

    • @carrollsanders9376
      @carrollsanders9376 2 года назад +6

      @@devilsatan2973 They talked with the engineers from Mitsubishi who designed Differecial steering for the marine Corps, OH it was HYDRIVE too, it's not even a CaT design, Cat Just bought the Right to use it in Heavy equipment.

  • @andyserrano3165
    @andyserrano3165 2 года назад +160

    Sure do appreciate your willingness to share your knowledge of equipment with us. Thank you.

  • @arthurjennings5202
    @arthurjennings5202 2 года назад +85

    The Cat high track system came out on the first D10 Cat tractors. There was the idea of a high horsepower tractor breaking bull gears with the amount of power the things made. But another reason was getting the seals and sprockets of the final drive out of the mud. The high track final drive is above a lot of the mud and "stobs" banging on the oil seals and since the D10 was designed for heavy work in quarries and open pit mines to move a lot of heavy material quickly the idea made a lot of sense. Before the D10, Cat tried to slave two D9's together. One configuration was a push/pull with a large high blade. The other configuration was a side by side that pushed a wide blade to move a lot of light material. Both solutions were clumsy and hard to operate. (The King Ranch in South Texas did use a D9SXS - side by side - to quickly clear brushland to improve pasture grasslands, or to cut pipeline right of ways.) The D10 was developed because of the demand for a large tractor and because other manufacturers were developing tractors of comparable size and weight of the D10 at the time. I first saw a D10 at a demonstration in Corpus Christi Texas when the local Cat dealer created a berm that concealed the D10 from view. Three Cat excavators began the show by walking over the berm, spinning around as they walked, demonstrating their stability. When they moved onto the flat, and were out of the way, The D10 pushed through the berm. It was impressive. Especially considering how large the D10 was compared to the D9 that followed it through the cut. I do enjoy your videos. Thanks for the hard work.

    • @C_CEQUIPMENT
      @C_CEQUIPMENT  2 года назад +4

      Thanks

    • @RJ1999x
      @RJ1999x 2 года назад +3

      it was actually a marketing gimmick and any non cat Kool aid drinkers know the high drives are worse then the old style.
      The D10 even with a high drive couldn't out push a HD41

    • @MrLeslloyd
      @MrLeslloyd 2 года назад +5

      @@RJ1999x I used to operate D9H's in the late 70's,we got in a 41B,was amazed at what it could push through that would just stall out the converter on the Cat's,pity they didn't do a complete redesign and strengthen the undercarrage of those Fiat allis's as operator wise they were better than the Cat's,my opinion anyway.

    • @cbmech2563
      @cbmech2563 2 года назад +4

      @@RJ1999x hahaha we had a brand new HD41 and a brand new D9g on the job ripping shot basalt rock. The only thing the 41 could do enough better to be worth taking about was push scrapers. With the then new parallelogram ripper the 9 would out rip it.
      After 4 months on the job the 9 had 10% grouser wear, the 41 had 40% and ripped a track link and dropped a track in 2 feet of mud

    • @RJ1999x
      @RJ1999x 2 года назад

      @@cbmech2563 I call BS.

  • @dedubh8016
    @dedubh8016 2 года назад +160

    The dirt and debris has a chance to fall away from the drive sprocket minimizing tooth and chain wear

    • @williamh.jarvis6795
      @williamh.jarvis6795 2 года назад +1

      This is exactly what I believe as well, with the "high drive" sprokets versus the standard track drive sprockets. Dirt wearing out the teeth on the track driving sprockets. Never knew about the so-called planetary gearing, working similar to an automatic transmission.

    • @Pteparts69
      @Pteparts69 2 года назад +5

      @@williamh.jarvis6795 conversely, there is additional wear on each sprocket and pin due to the decrease in surface area across the radius. planetary gears are used in a lot of applications, generally though, its in final drives.

    • @mikehand1910
      @mikehand1910 2 года назад

      You're so right.

    • @peterszar
      @peterszar 2 года назад

      You got it.

    • @johncunningham4820
      @johncunningham4820 2 года назад +1

      @@williamh.jarvis6795 . Super Heavy haul Trucks have been using Planetary Diffs for Decades .
      Easy to spot . F A T hubs on the Drive wheels .

  • @regsparkes6507
    @regsparkes6507 2 года назад +13

    It's good to hear the Pros and Cons of these drive systems.
    Thanks Clint.

  • @chucknorris3984
    @chucknorris3984 2 года назад +39

    I've run both over the years and had more time on low track machines as that's all they pretty much had at the mine and ash landfill. So I might be more biased towards them, but overall the low track machines are more of what I'd choose. I worked on 2:1 and steeper slopes a lot so the rollover risk was always there. Like you said, you could definitely see the high side pads in the air even on a D6K which is a low track model. The only thing holding you in place was the windrow at times. The high track machines have their place and traction seemed to be one of them. Taking a little longer to get stuck too is another. Learn to run what you can though. The more experience the better.

  • @gregs9187
    @gregs9187 2 года назад +6

    Not being an official equipment guy, this is something I've always wondered. Thanks

  • @technicalitems731
    @technicalitems731 2 года назад +15

    Also moving the operator station toward center. Balanced ride. Everything stacks in the center in a modular way. Also, backs up a slope better as the track protrudes out past the rear.

  • @blackw0lf993
    @blackw0lf993 2 года назад +41

    The high track was initially a joint project with komatsu. I've seen pictures of their pro-type they had at the time. One additional advantage of the high track was it got the final drive out of the soup if you were prone to working in that environment so it did help some on maintaining cost although like you said it did end up placing and additional idle down in the soup which would eventually get it seals pushed out by mud and dry and take out those seals and bearings but idler as Cat would point out are way cheaper than final drives. Komatsu in the end decided that the benefits and gins didn't put weigh the extra component cost and with some design ch he's they made at the time went another direction. They gambled on lot of their dozers being used for push cats on scrapers or pulling large pans or even pulling cable plows for fiber optic. In those environment the high track and it's added maintenance was not optimal. However the mines and a few other places they proved to be better. (I used to work for both Komatsu and Cat before 2001.) It doesn't make me an expert but I have seen my fair share of undercarriage work in last several decades

    • @kevinbridle1831
      @kevinbridle1831 2 года назад +6

      Komatsu had nothing to do with it, CAT patented the design in 1973, building a test bed D9 to prove the concept. The hi track version D10 was the first machine into volume production, this morphed into the D10N which improved traction with longer tracks, the mighty D11 has been the production tractor of note since its introduction. The patent has now run out and Liebherr has built a Hi Drive tractor but the vast majority are still CAT machines. I think there is a certain amount of national pride that Komatsu would not copy a Iconic American design unless there was overwhelming performance(profit) advantages.

    • @joegelencser2571
      @joegelencser2571 2 года назад +2

      Bullshit Komatsu didn't do nothing ever but copy what somebody else has already made they make garbage get your head out of your ass before you start bullshing the people

    • @joegelencser2571
      @joegelencser2571 2 года назад

      Bullshit Alice charmer experimented with high drive years before that get your head out your ass God-bless everyone

    • @cbmech2563
      @cbmech2563 2 года назад +6

      I worked for Peter Kewitt in 71 ( Kewitt did a lot of experimental work for Cat at that time)and we had an x10 on the job and it was actually almost as big as the first D11. But they had a real problem with transmission failures. They ended up downsizing to the first D10. We were also told that the original reason for the high track was to keep the finals out of the trash when working in a landfill. Wire and strapping have a nasty way of getting past any guards you put on the finals. I've replaced a few for that reason. I worked for a trash company that operated a landfill and we had a D8H and then got a D8R. We never lost a final seal on the high track.

    • @mikesanders6351
      @mikesanders6351 2 года назад +1

      @@kevinbridle1831 From what I can see patenting something in the US has very little, if anything, to do with who came up with the idea. Your patent office doesn't do any research into prior art, it just rubber stamps the application.
      In fact, if you have a look at about 0:43 in this video ruclips.net/video/a0Xh9TOgrsc/видео.html you can see a Cletrac with a high level drive, much earlier than 1973 - so we can probably assume that Cat did not invent the high drive, rather that they chose to patent someone else's prior design and implementation.

  • @dennisrickey21
    @dennisrickey21 2 года назад +20

    Thanks so much Clint. Like so many others, I appreciate your time and effort to help us understand more about the why and how of equipment operation and engineering. Always look forward to seeing a new video from C&C Equipment!!

  • @frisk151
    @frisk151 2 месяца назад +1

    You actually answered a question I once thought about forever ago, but forgot and never even did a search on it... Thank you, Sir! You know your equipment!

  • @gregspence617
    @gregspence617 2 года назад +5

    Enjoyed hearing the pros & cons. We had a D4 high track with LGP tracks and loved it more than our D5 straight tracks. We were in mud a lot and the high track was so much easier to clean out & service and the LGP tracks enabled us to work in places regular tracks would fall through but the D4 would out push the D5 on flat, level ground. It's a trade out with devoted fans of each type but I'd rather have a high track hands down.

  • @diverbob8
    @diverbob8 2 года назад +60

    Interesting discussion, thanks for that. My expectation is that there would be more trouble with the sprocket aspect since there is so much less degrees of wrap like about 120 degrees vs 180 degrees.

    • @sjg3890
      @sjg3890 2 года назад +4

      Not an issue. There is still plenty of teeth engaging with the chain. With a friction drive rubber belt, contact area is important.

    • @elbuggo
      @elbuggo 2 года назад +1

      The belt is only grabbing on 2-3 teeth at the time anyway.

    • @williamcrawford805
      @williamcrawford805 2 года назад +1

      I discussed this point in Peoria with the D10 undercarriage designer and he said the 80deg chain contact was not a problem. I was always told 120deg was a minimum

    • @yukonjon5964
      @yukonjon5964 3 месяца назад +2

      driven both types with worn out tracks and they both slip and jump the sprockets in that condition. but low track's slip worse in reverse than high track ones do i think.

    • @brianw8963
      @brianw8963 3 месяца назад +1

      All the high drives will jump due to material packing in the segments between the pins . Depends on the material type and also keeping the tracks adjusted properly. The absolute best thing Cat developed for this issue is the track pads with the holes in the center of the pads. They all should have been made that way for the high drives.

  • @bobcats905
    @bobcats905 2 года назад +13

    Great explanation Clint, love your videos, think positive test negative . 🇨🇦

  • @Retired88M
    @Retired88M 2 года назад +6

    Thanks
    I’ve run older style D-7’s and 8’s in the Army Reserve and always wondered about the high track

  • @StaK_1980
    @StaK_1980 3 месяца назад +1

    I didn't know I wanted to know the answer to this question prior to YT recommending this in my feed.
    Now I know , thank you!

  • @ohgary
    @ohgary 2 года назад +2

    You are exactly right about increasing final drive life. I always was told that inept operators were a major cause of failure, when instead of lowering the moldboard and pushing, they would ram an object at high speed.

  • @geniferteal4178
    @geniferteal4178 3 месяца назад +2

    I was just thinking this week how uneven the dirt parking lot is at our work. Now I am noticing how smooth this gigantic dirt parking lot is. I guess when you sell the kind of equipment that can make a smooth lot. You have a smooth lot.😊

  • @shakes7333
    @shakes7333 2 года назад +6

    I always thought it was for better ground clearance between the ground and the belly, the reason for the high track. Probably several reasons for that design. Thanks for sharing.

  • @eyebok
    @eyebok 2 года назад +38

    I’ve owned, maintained, and run both. Give me a standard set up all day every day! The FEW advantages of the high drive are totally outweighed by the disadvantages.

  • @logdog8920
    @logdog8920 2 года назад +11

    International Harvestor was actually one of the first to use planetary final drives and modular design, on their TD-20 E dozers. Later on Komatsu bought out Dresser to copy that original final drive/track piviot that IH had pioneered. They incorporated that design into their EX and PX dozer line. Also lets give Euclid/Texex some credit as they had planetary finals way back then.

    • @C_CEQUIPMENT
      @C_CEQUIPMENT  2 года назад

      Yep

    • @gereatricfolk479
      @gereatricfolk479 2 года назад

      But they also had this crazy way of holding the rear pivot shaft onto the machine.

  • @michaelfarmer537
    @michaelfarmer537 2 года назад +9

    I’ve actually wondered this before. Thanks for sharing. Everything is a give and take. It stands to reason they tried that on the bigger tractors that experience more stress in general. I’m guessing the weak link was the main drive sprocket in certain situations. It’s incredible how much engineering and trial and error has went into these machines. 🤩💪👍❤️🇺🇸

  • @pgrove8
    @pgrove8 2 года назад +2

    I am new to owning and operating equipment. Thanks for the info. I have had my ups and downs for sure. My low point was when I laid my dozer over on it's side. I did not get hurt wear your seat belts! Dozer was not hurt. Thank god I have a friend with a D 6 and could get to my location and flip the D 3c over. I ended up having him cut my house pad with his d 6 and he ended up having to bring his excavator over to finish.

  • @GARDENER42
    @GARDENER42 2 года назад +6

    Thanks for the explanation. Wondered why the two styles & now I know.
    Not that me as a retired fishing tackle shop owner needs to know. 😁

    • @lastguy8613
      @lastguy8613 2 года назад +4

      Hey I'm the same, as a painter and plasterer I have no reason to be fascinated by these excellent heavy equipment channels. Tho I did point out to the driver of a dinky little digger on a job site recently that his grease fittings didn't look like they'd been greased in a while.. He agreed and greased them. RUclips makes everyone a expert lol

  • @GT-dh5nk
    @GT-dh5nk 2 месяца назад

    My trade certainly is never going to see me operating a dozer but this was a very well-explained and interesting video. Never thought about high vs low track though I've seen it for years, so I appreciate your explanation and teaching us all a little something.

  • @rickhay9782
    @rickhay9782 2 года назад +2

    Thanks for sharing and comparing Clint, hope your son gets more vocal in your videos, so great your family works together!!

  • @rp1645
    @rp1645 2 года назад +5

    Thank you for explaining this gear run drive
    You by all the years of having to take these apart, are the expert. I noticed on a lot of Logging shovels
    ( The Loggers call all there log loading excavator SHOVELS) loggers have TERMS for there machines that are different, it's really today a modified Excavator in my Humble opinion, They raised the track area were it runs over the mid top of tracks, my guess is to run all the brush/ tree limbs off. Speaking of working on side inclines, the Case/ Drott excavator back when the two companies made the same excavator, just a few options that different like GMC & Chevy pick ups, made the Hydraulic cylinder to level car body ( house ) straight. Digging on side slope, the 30 year Engineer from Case explained to me at Con- Expo in Vegas, as we looked at there history pictures at booth, the pro and con, linkage getting sloppy on cylinders having a house that did not stay straight. The con on that level type of set up. It was a great idea for NEW tight pins, after heavy use it was real loss. I notice on the rebranding of CATS new small Dozer line up. They renumber all there small dozer's. They went back to straight drive tracks, are they better now. On gears. Did not know about the top heavy issues
    Don't drive those high tracks on slope, so what I hear from you the expert gives me feedback, on issues. Thank you again for the explanation on the high track system that CAT built, to keep longevity into that important Drive sprocket.

    • @C_CEQUIPMENT
      @C_CEQUIPMENT  2 года назад +3

      The local contractors loved the tilt top case excavators for beating rock in a ditch with hoe ram because they could tilt it

  • @stephengrimmer35
    @stephengrimmer35 2 месяца назад

    Having once bogged a D9H in 6 foot of Venezuelan rainy season mud (a week to dig out by hand) I absolutely loved the D8N elevated sprocket we replaced it with.

  • @johntmccrakin109
    @johntmccrakin109 2 года назад

    Been so long since RUclips taught me something. Thanks brother. Very informative. I never even thought about it until today.

  • @MoraFermi
    @MoraFermi 2 года назад +20

    I suspect that the faster wear on the track components on the high track version is related to the drive sprocket engagement area. On the "traditional" model, you have ~180 degrees of track contact, so the motive force is spread over multiple links. On the high track it looks like only 1-2 track links get ever engaged to the sprocket.

    • @C_CEQUIPMENT
      @C_CEQUIPMENT  2 года назад +3

      Yep

    • @Gettindirty187
      @Gettindirty187 2 года назад +2

      That’s what I was always worried about.

    • @FishFind3000
      @FishFind3000 2 года назад +3

      That’s what jpaydirt said

    • @todd727300
      @todd727300 2 года назад +7

      Not exactly true. Only the first couple of teeth on either system are actually pulling hard. That's just a function of how any chain system works. One thing that is true though, is that on the high track, the track has to move through more than 180 degrees, which does cause more wear in the pins and bushings.

    • @Farmall450
      @Farmall450 2 года назад +7

      @@todd727300 I get what you're saying but in both cases it goes through 360 degrees.

  • @jimhoward6584
    @jimhoward6584 3 месяца назад +1

    i asked this question to a lifelong retired equipment operator here in Canada who had run both types of units and he didn't know why but he added , as you said, that the high tracks DID have a higher center of gravity in his opinion and while doing some pipeline work in BC years ago on some terrible steep ground he shifted to a low track to feel a bit more stable. He did say that getting up to the cab on high tracks was easier being able to use the tracks as "steps" especially as he got older LOL.

  • @kingwood4357
    @kingwood4357 2 года назад +2

    Learn something new every time I watch one of your videos. thanks for the information and education. 👍

  • @fgllc
    @fgllc 2 года назад +8

    Thank you Clint. I had heard many different ideas of why they do this. Thank you for sharing what you know.

    • @matta3888
      @matta3888 2 года назад +1

      I have never thought about the reason for this.

  • @matthewgauthier7251
    @matthewgauthier7251 2 года назад

    Very cool to read comments and get a glimpse into a realm i know little about. Thanks.
    Learned more about this kind of equipment in the last 15 mins than the 1st 61 years of my life. And at least begin to grasp what a planetary gear does.

  • @mattkenney2637
    @mattkenney2637 2 года назад +10

    My favorite quality of high track is visibility. Main reason cat switched was reducing component wear. Maybe undercarriage wears quicker. But final drives sprockets and track wears significantly less. So probably fair trade out IF undercarriage wear is greater. That hasn't been my experience tho.

    • @cg8469
      @cg8469 2 года назад +1

      I think anybody who has done any amount of heavy equipment maintenance/repair would much rather deal with undercarriage repair than final drives. Lord knows that's my opinion at least.

  • @roblong6518
    @roblong6518 2 года назад +8

    Thanks for another great video, especially explaining something many of us have wondered about, and ran. I agree, they are less stable on slopes for sure, and we were told the high track improved turning, but I'm still not convinced. On hard ground I think they ride somewhat worse, not that any do great! LOL 👍

  • @bruceneilson
    @bruceneilson 2 года назад +4

    I was working for a Cat dealer in the 80s. For what it's worth; When the D10 was first released it was the first high drive.

  • @garylester8621
    @garylester8621 2 года назад +2

    Thanks for answering a question that has been on my mind. By the way, you described the planetary gear system perfectly. The description you painted in my mind matched the picture you posted in the video

  • @texanwd8387
    @texanwd8387 3 месяца назад +1

    Finally an explanation that I can understand, Thanks

  • @LongBinh70
    @LongBinh70 2 года назад +38

    Interesting. I'd always heard it was to keep the final drive out of abrasive mud.

    • @jackrichards1863
      @jackrichards1863 2 года назад +2

      It is. That D5 is a Komatsu too . HGC high tracks are high ground clearance.

    • @joegelencser2571
      @joegelencser2571 2 года назад +2

      @@jackrichards1863 The kamatsu was never even in any class nowhere's near the Caterpillar kamatsu is pure garbage

    • @njonebale7889
      @njonebale7889 2 года назад +2

      @@joegelencser2571 not anymore, they push a lot

    • @joegelencser2571
      @joegelencser2571 2 года назад +4

      @@njonebale7889 They push a lot of money out of the United States God-bless everyone

    • @Hoaxer51
      @Hoaxer51 2 года назад +1

      @@joegelencser2571,👍🇺🇸

  • @gratenate4932
    @gratenate4932 2 года назад

    Very nice-looking yard there, sir! Always great to have an organized, clean area for equipment and daily movements! Thanks! Best 2U!

  • @devenportdirtworks1203
    @devenportdirtworks1203 2 года назад +1

    It is also very good for a ripper tractor the load that is pulling down is not on the sprocket but the idler. There was a highly modified D9 prototype first the production tractor was the D10. Thanks for the video

  • @HootakaBJ
    @HootakaBJ 2 года назад +7

    They did make a D4H for a while too, nice “lil” dozer… good visibility but slope dozing was a bit sketch 😬

  • @timtwing35
    @timtwing35 2 года назад +1

    nice video. Cant say for myself about the oval undercarriage lasting longer than high drive. i have a cat d9 on over 100 acres ive had it for about 2 years and ever since ive made a lot of friends who have operated bulldozers for years and decades. they have given me a lot of guidance and knowledge about bulldozers and bulldozing. just from their experience oval undercarriage has needed replacing more than high drive and its probably the fact that the final drive is receiving more shock loads from the ground. like i said cant speak from personal experience even though i have operated a handful of dozers ever since i bought my d9..

  • @dplant8961
    @dplant8961 2 года назад +8

    Hi, C&C Equipment.
    A good video. Thank you for posting it. You have listed a lot of the pros and the cons of each track system in a manner that is easy to understand. Good stuff.
    That said though, I think you did miss a couple of advantages of the hi-sprocket design over the standard or oval track system:
    1. The contact between the sprocket teeth and the track bushes is largely up out of the dirt which helps to reduce wear.
    2. The hi-sprocket track frames seem to collect dirt and mud less readily than the oval track machines and are usually easier to clean out when they do collect it.
    On the stability issue, I would agree with you, especially about the fore-n-aft stability for climbing or descending steep slopes. I once took an angle blade, bob-tailed D9G up an 8-foot vertical wall - at night. I would NOT attempt it with any hi-sprocket drive tractor.
    On side slopes, as I understand it, part of the U.S. Army's requirements for side slope stability is that the machine MUST be able to stand on a 45 degree side slope. I personally have had a D9N on a MEASURED 43 degree slope TWICE, with NO indication that it was about to lift the high side track.
    On the bigger Cat machines where the front and rear idlers are incorporated into the front and rear track roller bogies, I do think that they ride a little smoother in rough going than the earlier machines. How-wevver, they do have a tendency to 'catapult' the operator out of the seat if a bump is travelled over too fast, especially travelling forward, much like a tailseat small crawler will 'launch' the operator when going too fast over a bump travelling forward.
    Just my 0.02. Thanks again.
    You have a wonderful day. Best wishes. Deas Plant.

    • @C_CEQUIPMENT
      @C_CEQUIPMENT  2 года назад +2

      Thanks for the info

    • @dplant8961
      @dplant8961 2 года назад +5

      Hi, @@C_CEQUIPMENT.
      You're welcome, Sir. I have been operating many different types of earth moving and construction equipment for over 57 years now. I can't see any sense in taking all of that experience to the grave if I can share a little of it around.
      And in all that time, I have never had a 'job'. I have always been a big kid inna BIGGGG sandpit being paid to play with other people's 'toys'.
      We have a fairly big vintage machinery and military hardware show here in Central California on Memorial Day Weekend each year. If you are interested, we would love to see you out here.
      Just my 0.02.
      You have a wonderful day. Best wishes. Deas Plant.

    • @CrusaderSports250
      @CrusaderSports250 2 года назад

      Drove a Land Rover along a 45 degree slope, not an experience I am desperate to repeat, my friend who had never been off road before went rather quiet and when a more level attitude had been attained said the needle on the gauge had stopped solid at forty five, we didn't go back that way, to do that in heavy equipment, well hats off to you☺.

  • @voiceoftheclan8087
    @voiceoftheclan8087 2 года назад +5

    I really hope your son takes full advantage of the knowledge you give and the practical experience he can get from you, just incase he might need it some time in the future thank you Clint more knowledge better life.

  • @dimievers5573
    @dimievers5573 2 года назад +7

    those reduction hubs are awesome , though you will have less travel speed you will have a greater amount of torque , it makes it easier on the transmission , clutch and drive train gear . i think in the conventional way the reduction hub wouldnt work well so that to me is another reason to make it a high drive , it also gives more ground clearance

  • @paulnolan1352
    @paulnolan1352 2 года назад +11

    Hi all, i used to repair Cat tractors of both track design and i can say that when the HI-Drive system came in it made maintenance expensive. Track wear increased rapidly particularly on the smaller machines, ie D6, D7 etc.with the adjustment Cannon snapping in half due to a stretched chain. The bigger machines gave problems like endless trunnion cap bolts breaking off at the back idler and increased sprocket segment wear but the biggest issue was with D9 D10 etc just being too heavy and getting stuck in soft ground something we never had with D9H OR G Tractors with flat tracks.

    • @gereatricfolk479
      @gereatricfolk479 2 года назад

      Absolutely right Paul, apparently you have seen a few track recoil assemblies that were broken and had full tension on the track.

  • @cerwin21
    @cerwin21 2 года назад +11

    Ive experienced both in an offroad pioneering enviroment for USFS. The high track version seemed to dig better and made less passes to get same results. The higher center of gravity had to be minded on mtn slopes other than that. Less overall maintence on the high track, but more expensive when the track components had to be services. As the dump truck driver who hauled both on tilt deck, the high track was sketchy on back roads to haul. Tippy . We did go through belly pans alot on both about 2 times a year. Rocking about 150 miles of road a season for usfs

    • @Jay_hendy
      @Jay_hendy 2 года назад

      How does one get into something like that (usfs operating)? I operate right now in Indiana for an environmental compliance contractor, but would love to move even further into the environmental operating space. Possibly out west for a few years.

    • @cerwin21
      @cerwin21 2 года назад +1

      @@Jay_hendy Civil engineering jobs listed in Logging communities. They are almost always looking for rock truck drivers. Its busy most of the year 60hr weeks and slows down in winter for 2 months. Or pacific power also pays for roads to be rocked. You either join a civil engineering outfit or go direct to thw logging corporations and say hey id lile to bid for rocking logging roads and they will point you in the rigt direction. Things might be changing on the business front as a company from Tenn. Is buying up all the logging site rights from roseburg foreat products and senica and some warehouser lands. But the need is still there. Lots of emergency fire work during those months too. 1000 a day to rock road, 1500 a day for water truck, with your owned rig.

    • @Jay_hendy
      @Jay_hendy 2 года назад +2

      @@cerwin21 Thanks dude I appreciate it

  • @mattcrowell7945
    @mattcrowell7945 6 месяцев назад

    I spent several years running a D6R and D6T. They are great machines. The differential steer was a great design that let you keep power to both tracks in a turn. I felt like the tourque converter type transmission put more power to the ground and had less issues than the hydrostatic trans in the john deere.but i only have limited experience with one 850j that had a lot of problems.And the high tracks were much easier to shovel out than the flat tracks.

  • @danyarbrough7847
    @danyarbrough7847 11 месяцев назад

    Thanks for the breakdown of difference. Who cares what folks prefer. Depends on their use and needs.

  • @valuedhumanoid6574
    @valuedhumanoid6574 2 года назад +16

    I was under the impression that by raising the drive sprockets, you placed the engine, transmission and final drive inline with each other, eliminating the need for the lower gearbox. It kind of made sense at the time, but now I am not so sure. I hear operators like JayPayDirt saying they don’t use the high sprockets because of premature track wear. Something about the geometry of the third bend vs the standard two bends adds wear and tear. But I suppose it depends on the environment you’re working in. Flat even terrain would favor standard tracks. Rough, extreme duty like mines, quarries and pits would favor the high sprocket design

    • @peterclark6290
      @peterclark6290 2 года назад +3

      No extra bending, the track does a 360 every rotation. The end sprockets do a little less which is taken up by the high sprocket.

    • @gereatricfolk479
      @gereatricfolk479 2 года назад +1

      On the standard track you have the links contacting the front idler and rotating to make it's way around, 1st rotating of link. Then it contacts the sprocket and makes the 2nd rotating of the link. On a high drive you have to add one more idler and you get a 3rd rotating of the link. Then on a high drive you need to factor in the long expanse of the chain from the sprocket to the front idler and you get chain slap that causes scalping of the front idler. This is also found on the rear idler when you go into reverse. If you want to see this in person just look at a high drive with SYSTEM 1 and the front idler will look like a wash board.

  • @wymple09
    @wymple09 2 года назад +2

    I'm pretty sure that Cat engineers didn't go this way lightly. They are, and always have been the world's leader in this stuff for a reason. I don't trust bean counters, but I do respect engineers. Big Red uses a high drive setup on all 4 corners of their big farm tractors as well. To me, the increased visibility and keeping the drive unit cleaner by getting it out of the crap below are huge pluses. My old uncle spent his entire working life as a mechanic on heavy equipment. I asked him at an auction why the Cat stuff brought so much more money. He said it was simple. They are worth it.

  • @keithmalmberg8395
    @keithmalmberg8395 2 года назад +1

    It comes down to technology.
    It was a way to get more gear teeth engaged with the available metal technology.
    Today there are more advanced metals available so parts can be smaller and have the same strengths.
    Good information 👍

  • @yukonjon5964
    @yukonjon5964 3 месяца назад +1

    differential steer is one of the huge bonus options of going high track. they will push heavy loads just fine while turning. without question it's a massive improvement, especially in wet ground.
    has anyone made a diff steer low track?

  • @dansbrown1313
    @dansbrown1313 2 года назад

    Thanks Clinton, The sharing of information is good but you know what's great? Your sons want to hang out with Dad and that says a lot!

  • @davestinson5691
    @davestinson5691 2 года назад +5

    I know a high track seems to grade easier. I ran a d5 lgp flat recently. It was hard to not get woop t do's. I also heard high track puts more traction to the ground. Ty for sharing this.

    • @robbiejackson5282
      @robbiejackson5282 2 года назад +1

      High tracks are set at an angle so they dig down under a load.

  • @kenmccall8051
    @kenmccall8051 2 года назад +4

    Thanks for explaining that to me I remember seeing the high tracks come out in the 80's but never known why.i heard better on slops don't know anything about them never operated a doser .but always look at them and wish I could .I'll put it on my bucket list.😁keep up the great work and video's 👍👌😎✌️🇺🇲

  • @timmotel5804
    @timmotel5804 2 месяца назад

    Good Day. Excellent. Very interesting and Educational. I'm still a big kid about this stuff. Thank You

  • @BawkBawkBawk666
    @BawkBawkBawk666 2 года назад

    When I was in school we discussed an advantage of the high track was when it need to get pulled from the deep mud it was easier to pull the sun gear when it wasn't buried as far

  • @gidnhendriksen2927
    @gidnhendriksen2927 2 года назад +3

    Thank you for sharing your knowledge I do believe Cat made a D4 H model high track for a short period of time

    • @C_CEQUIPMENT
      @C_CEQUIPMENT  2 года назад +2

      They did it was the model before the D5M in this video

  • @mackenziepeek9317
    @mackenziepeek9317 2 года назад +5

    I was always told the standard track was better for the usual work and more stable on slopes and I high track was more for flat ground rough terrain heavy pushing. So we always had them out where it was rocky or in or scrap yard and dump or where we hit lots of stumps. If it wasn't a rough job we almost always had standard tracks. This was just what I was told. I'm a trackhoe/ wheel loader track loader operator. Only run a dozer a handful of times so I could have been told wrong

  • @alanl.simmons9726
    @alanl.simmons9726 2 года назад

    Thank You for explaining this.
    Cost v benefit is a constant struggle.

  • @zoomname130
    @zoomname130 2 года назад +4

    The older cat dozers were very primitive. The track Frame was mounted to the final drive and the life of the finals was very short due at the shock load. The high drive was their way of isolating the finals. On a John Deere the finals are isolated from the track frame so even though it's a low track you get long life from the finals. I worked many years in a Deere dealership and have seen 850 dozers go incredble numbers of hours on the power train without overhaul.

  • @tylermiller7295
    @tylermiller7295 2 года назад +1

    I have operated a D6T in snow and the high track got around better than a straight track did. It pushed snow well also, I haven't done a lot of dirt work though. So I have no comparison. Thanks for explanation

  • @masaharumorimoto4761
    @masaharumorimoto4761 10 месяцев назад

    Thanks for giving your informed information on this topic, been digging around and there seems to be so many different opinions globally.

  • @kevinmurphy3464
    @kevinmurphy3464 2 месяца назад

    Always wondered about the difference, so thanks for the great description between the two. Hope your son is enjoying that Ford OBS you guys built!

  • @wmden1
    @wmden1 5 месяцев назад

    Thank you. I have wondered about just what you explained, really well, ever since I first saw a high drive. If a dozer can be aesthetically pleasing, I like the looks of the regular, old style, tracks, sprockets and idlers, considerably more than the high tracks.

  • @chargermopar
    @chargermopar 10 месяцев назад

    Back in the 90's i had a job working with a crew installing fiber optic lines. They had a D4 high track which I was using for backfilling. I liked the elevated view you got and it seemed to do better in the this weeds and brush.

  • @aldimore
    @aldimore 2 года назад +2

    Thanks Clint. As a dozer want to own guy I am always wondering why things were done a certain way.

  • @davoupnya3202
    @davoupnya3202 2 года назад

    Keeps the drive gear out most debree ! Now I will see what you say Mr. C&C ? Thank for your input Sir !

  • @Bobsutubes
    @Bobsutubes 2 года назад

    Thanks for taking a few minutes to explain why along with pros and cons.

  • @michaeldunagan8268
    @michaeldunagan8268 2 года назад

    Yes you did answer my questions on why a "high track".

  • @neilopfer5687
    @neilopfer5687 3 месяца назад

    Thanks C&C for the video!! Knew a fair amount about these units but learned a few things as well. Would note that CAT had their ag tractors also with a type of the high drive (CAT Challenger that they started in 1986 but then sold off to AGCO in 2002 based on my info). Mobile Track Solutions (MTS) has their high-drive unit (such as MTS 3630T) coupled with a tow-behind wheeled scraper unit for construction sites and land-levelling operations. JOHN DEERE had that 764 high-speed dozer with high drive but unfortunately it was designed for work around housing developments and came out just as the Great Recession 2008 took hold so it was discontinued. Also JOHN DEERE, CASE, and STEIGER all have agricultural tractors with the Quad Trac design with 4 separate unit-points with elevated drive sprockets. Just go to Google Images for views of all of these.

  • @philstreeter9703
    @philstreeter9703 2 года назад +4

    Thanks for sharing your knowledge with us. Greatly appreciated. Has anyone asked what difference between steel and rubber tracks. You touched on this a little bit on one of your auction videos.

    • @C_CEQUIPMENT
      @C_CEQUIPMENT  2 года назад +4

      Rubber is more for city type work when driving on blacktop or concrete

    • @jaquigreenlees
      @jaquigreenlees 2 года назад +3

      @@C_CEQUIPMENT In the vids of the first Hyundai loaner DP had there is one that shows the biggest issue of rubber, the lack of traction on soil / grass.
      The tracks spinning on wet grass and the machine just sitting there.

  • @rickwrd2849
    @rickwrd2849 2 года назад

    Makes sense. I've run a high track 6 over poles, concrete and all kinds of stuff. Ran a track off of a low track 7 on the same stuff, but in mud.

  • @larryhewitt1078
    @larryhewitt1078 2 года назад

    I worked at Link Belt Bearing in Clinton Tn . They announced the Cat Sleeve Project in the early 80"s. They added on to the plant and Put in new turning machines ,heat treat furnaces and grinding machines if we voted against a labor union. So we did , i bid on a job in heat treating and worked on heat treating the Cat sleeves. about a year or so the Japanese under priced us cheaper than we could by the raw material. Also Cat claimed another advantage of the high drive ,that the operator could tighten its tracks from the operators seat instead of stopping and using a grease gun.

  • @malcolmmarzo2461
    @malcolmmarzo2461 2 месяца назад

    Your explanation of how planetary drives spread the shock load better made me realize why World War Two aircraft often used them on their powerful engines. Planetary drives were also used on Model T Fords, perhaps because of the shock loads that terrible roads imposed.

  • @okloopy
    @okloopy 2 года назад

    On a conventional track at times only the front idler or the sprocket is on track that touches the ground. So there can be a lot of high load situations where only one grouser and one link is highly loaded. On the high track, there are bogeys with one bogey roller and one idler linked together and pivot together. In the worst load condition two or three grousers and links are between the roller and idler in the high load zone. That also made it possible to use D9 links on the D10 track.

  • @rackman5111
    @rackman5111 2 года назад

    Thank's Clint I love my Dozer's I just lurned more about the reason I know the high Trac is easier to clean 👍

  • @dustyroads834
    @dustyroads834 2 года назад +1

    I never thought too much of the high drive just because there is less sprocket to track chain contact area. I think that puts a lot of the drive load on just a few of the track pins at a time.

    • @rossgray3070
      @rossgray3070 2 года назад

      Cat say that even on the low track design its only the first 3 teeth that take the load , the same with the hi drive so its doesn't matter as to how much track is around the sprocket. Which makes sense coz once U have a tiny bit of wear in the chain/pins/bushes there won't be any drive load on the teeth apart from the first 3.

  • @18winsagin
    @18winsagin 2 года назад +1

    The company I worked for got 2 liebherr dozers with hydrostatic drive in about 86 or so with a left and right travel pump and motor, had tracking problems at the start. They didn't go to their type of planetary drive until the 90s with their Phat Brand gear and never went to high drive that I know of. Never cared for hydrostatic after having the older cat equipment with the transmission and steering clutches, just seemed the hydrostatic was much lighter and would spin tracks easier without the extra weight but operator was becoming the main goal then which is good but I believe the raw power was definitely sacrificed, just my opinion though.
    Thank you for your efforts.

  • @jdhorton1432
    @jdhorton1432 2 года назад +4

    Cool! Thanks for that explanation!

  • @SickSixFarms-lq7ot
    @SickSixFarms-lq7ot 3 месяца назад

    Thanks for the explanation! I always wondered why they did that.

  • @timziegler9358
    @timziegler9358 2 года назад

    Thanks for the information. I have often wondered why.....now I know. Best wishes.

  • @russellsmith3825
    @russellsmith3825 2 года назад +2

    Part the reason for going to the high track design was to keep the seals for the final out of the mud and muck, I think this may have been before they came out with the duo-cone seals , but even then it will still lessen water intrusion when pushing sand out of a creek and other semi submerged applications

    • @C_CEQUIPMENT
      @C_CEQUIPMENT  2 года назад +1

      Yep good point

    • @russellsmith3825
      @russellsmith3825 2 года назад

      @@C_CEQUIPMENT I was thinking about it and I don't think cat ever went to the high track model for the crawler loaders, but maybe they didn't have the same issues with those tractors

  • @paulkysar6207
    @paulkysar6207 2 года назад +1

    In the pacific north west running a dozer in the woods, hight track will run on steeper ground than standard track. High track will climb over stuff better, standard machines rear up when crossing over a log or something similar. High track machines out push standard track machines too, better traction. Growing up logging and the last 20 years working heavy civil construction.

  • @richardellis3141
    @richardellis3141 2 года назад

    I have always wondered why, thanks for the video.

  • @jamese.laughyjr.7228
    @jamese.laughyjr.7228 2 года назад +13

    A lot of the high track are better for mining & landfills ( using the big boys). The smaller (regular tracks) are like you've said is better suited for everything else. Thank you for your experience & the expansion of the 2.

  • @jondierksheide6883
    @jondierksheide6883 2 года назад

    I worked at CAT for a few years in the early 80s. The other advantage I recall was that it gave more ground clearance, since the drive shafts didn't have to be at the center of the lower sprocket, with the case below that. Plus as mentioned else where the added bogies to allow the track to better conform to uneven or rocky surfaces which was supposed to increase force at the blade.
    And it requires sealed track bushings, otherwise the wear from added flexing from the bogies and rear idler would have been a big problem. I sat next to the service engineers who were trying to solve problems with the seals that kept leaking oil on the D10s. Sealed and Lubricated track was not new, but a little leak was not as big of a problem on the flat style track. It would have ruined the new DC10.