5 yard bucket.

Matt has a D9H which has a slightly deferent blade and cab, but no it is not him.

I agree easier to pull through ground if boot is running horizontal great vid though from old retired dozer operator down in tasmania 😊😊

​@@timothywalker4666 Lol!! Come out of retirement & you can work with us..😂

You probably did. Holmes County (Mt. Hope) is their home show.

It was at the Middlefield Steam And Railroad Show, which was the Thursday, Friday, Saturday after ACAEC. Last year they were the same weekend.

For sure!

Yes. It has steering brakes instead of Cat style steering rams on the gooseneck. The originals could have the tractor turn around under the gooseneck and squash the driver. Note that this one has a short length of very heavy chain on the steering post to prevent the tractor from turning too far.

Marion was the main competitor of Erie. Marion and Erie shovels look very similar, hard to tell them apart.

Agree!

And a second D9G just arrived, with a functional ripper! I have video of it tearing up the bedrock. Soon!

I hadn't thought about progressive depth, but progressive twist intrigues me, and could be produced easily by using a curved sine bar instead of this straight one. I don't see a way that this machine could do progressive depth as it is.

The throttle linkage is visible starting at 6:42. It is a horizontal rod just above midline of the boiler side, with a small lever going into the smokebox, and a bellcrank midway back, to compensate for boiler expansion. Inside the smokebox, the throttle is a row of poppet valves, opened one at a time by a camshaft, rather than a single large valve. This is to avoid a thermodynamic problem called throttling, where a large amount of steam's energy can be lost by passing through a small opening, as happens with a conventional single opening throttle valve. The thermodynamic principle is called "throttling", and it robs power. Lima had a genius engineer named Will Woodard, who performed extensive experiments on steam flow, achieving such large improvements in efficiency that Lima sold their engines as "Super Power", with many comparison tests on the road to prove the difference. The efficiency of these engines was such that Nickel Plate road tested EMD diesels, then bought another order of berkshires instead. These engines were trusted to run as single units to pull refrigerated meat trains worth over a million 1950 era dollars. They normally hauled fast freight at 60 mph across entire 100 mile divisions. The Mars light was effective at a time when there were many unprotected crossings. I watched them back then, it looked like a big light saber slashing ahead of the train.

Friend had a couple B models, I rode a few times. They made you work, but they were tough.

National Pike Show Brownsville PA USA Believed to be the largest digging show in the world.

High Drive rubbish.....60,000 sold, must be no good at all

@@Gavin84w I was partly joking (Brit humour) but look at the amount of ''track wrap'' around the drive sprockets of the 2 systems

@@markfiges999 A low drive sprocket only has 3-4 teeth in contact at any time due to track pitch....you can regularly see 5-6000hrs to a bush turn on D10/D11 size machines and then run to destruction around 10,000 hrs in normal conditions....would never see those hours in a D9H

@@Gavin84w As they say - every days a schoolday, thank you, ........still don't look like proper dozers though😉

Absolutely! That D9G was brought in this weekend. It dug that hole to bedrock on Saturday. There are now 2 of them at Brownsville. Fun times!

3 passes in 49 seconds.

For fun. These people's hobby is restoring old outdated antique equipment and operating it for other people to see how dirt moving equipment was in the past and how it works, and the big thing is they enjoy running them.

They're a foot or so below the dirt road.

It is a 1945 Lima Model 34, built October 1945. 3-71 Detroit. 3/4 yd bucket.