Today I got to run the oldest dozer in our fleet, a cat D7H w/ 14,500 hours. She is a tired kitty, but she is still pushing... I curious to know what others have encountered as for high hour machines. Can you get to 20,000 and higher?
I've seen D11's with in excess of forty thousand hours. The equipment history folder on the one was about 12 inches thick, and it was a very tired old tractor. Came out of a coal mine in West Virginia.
At 40,000 hours what was original? The hour meter? With this 7, the blade os going to need tightin up soon, you can see it play from the seat when it hits the ground. And it will only push load scrapers in 1st now, scrapers are terex ts14's.
we have one of the first High Tracks ever in NJ, a D6H. It's tired, around 10-11 k hours, but it still pushes....
Our older D7Rs are running around 28 to 30 thousand right now. Brian
Highest hours. Hi, Folks. I once operated a D9H/G for eight months that had 45,000 plus hours on the frame. It had blown the original motor at 40,000 hours working as a farm tractor pulling multiple deep plows in the U.S. It then had a D9G motor fitted, was sold and ended up at the Cat distributor in Sydney, New South Wales, Australia, where it was fitted with a U-blade that had been cut down to make a semi-U blade and also had a ripper added. From there it went to a contractor in the Snowy Mountains of N.S.W., where it was rolled, totalling the right hand track frame. An RH track frame from a D9G was fitted and the machine was sold to MetroMix Quarries at Teralba, a suburb of Newcastle, N.S.W., where I ran it for those 8 months. It was still a fairly willing worker although suffering a bit of fatigue in various parts. It also still handled very well. One of Metromix's delivery truck drivers could not get his head around the idea of 45,000 hours so I explained to him that if he got in his Mack tipper and drove at 100 kilometres per hour for 45,000 hours, he would have covered 4.5 MILLION kilometres. His reply: "That's a helluva lotta kilometres." (4.5 million kilometres equates to roughly 3 million miles. Anybody know of ANY road trucks that have notched up that sort of tally, especially making their own roads as they go, like a dozer usually has to do?)
We have a old Case 450 that has approx. 20,000 hrs. We still use it often.
An old guy here who ran his own small trucking company put 1 million miles on his Brockway, himself, hauling just locally around Southern Maine, mostly wood chips. The truck is in his garage and still runs and goes. It has more than a million, as some of his other drivers ran it as well, but he had a million himself. His son died of an anyurism about 10 years ago behind the wheel and they closed down the business.
Yeah D9N's with 40'000+hrs. Not with original engine, tranny and running gear etc but still the same machine. Other machine on the same site have 40'000+ like RH120's.and CAT Mining trucks to name a few. Ross
High Hours Although it's not a dozer, this JD 544 Loader is impressive with 72,000 hrs on the meter: http://www.cegltd.com/story.asp?story=8983&headline=Seventeen-Year-Old Deere Loader Keeps on Ticking
I did some research awhile ago on some equipment surplused at a coal mine. There was a D11 and a couple of D10s in the 90,000 to 100,000 hour range. The frames are the key. You can swap components as long as you got income to pay for it.
We have 48K on one of our 9Ns with a new engine that was put in not to long ago. Damn Ns ointhead
We have a 980C with over 30,000 and ive seen 980 loaders with well over 70,000 hours on them.
In 1990 we bought 2 different TD15C Dresser dozers. My dad and my great uncle ran them both(each one had his own machine for the most part) and looking through uncle Harv's records his dozer has 25,000 on it and 22,000 on the engine(was rebuilt at 3,000, and hasn't been touched since). The other dozer, the one my dad ran has 23,000 on it. There has been some things overhauled and new bushings etc but both machines have pretty much all the origanial major components as when they were new. Dads dozer, after bering overhauled by the dresser company, tossed a piston through the block and the entire long block was replaced but otherwise nothing super major on either machine.
So how far do the old TD25's go?
So how far do the old TD25's go? Hi, Dozer575. About 50 hours. LOL.
we have a D10N with over 53,000 hours on it
Welcome to HEF phantom! :drinkup
thanks glad to be here
Figured this thread might generate some interest.....
Hum… We have a D5H at our farm bought at an auction , clock stopped @12k something… recently had to reseal the TXM, but found no wear in the main components inside TXM or power train. Engine burns 5 liter of oil in a 250H interval, does not have any blow by. I pretty sure it will last another 12k. Of course it will eat away some more chains and pads and rollers and idlers and bearings and bushes and need some attention here and there… including control levers and such… but that is called maintenance…
At a mine I was at we had 7 x D9N's. One had over 100000 hours when I left. The others weren't far behind. Engines used to last about 15000 hrs, transmissions up to 25000, Final drives & clutches around 40000. Tracks about 4000 max. On an island that was hard to get new gear into so everything was kept going. 785 trucks were at about the 80000 mark.
On Iron Planet there's a Kress 300 ton coal hauler that says inoperable but doesn't say what's wrong. There's a component maintenance/replacement chart that shows the machine has 148,000 hours.