opinions on HD -41 allis

Hi, Boots.
When these contraptions hit the market, they were the biggest crawler tractor/bulldozer available. They were able to rip travelling UPHILL and could WAY outwork a D9G, Cat's biggest dozer at the time - - - - - - WHILE they were working.

They tore up final drives and tracks with gay abandon in heavy work like hard ripping and dozing rock - - - to the extent that a couple of companies DowNunder who had them de-tuned them by around 80 to 100 horsepower.

From the few reports that I have heard, the Fiat-Allis 41B was a better tractor but not by enough to save the model line.

Hope this eases your curiosity.

believe you are saying they were built light for the power they had thanks for the reply boots

cabin fever got me also. typed in russian bulldozers and up comes a t100 that looks and sounds like a 3t cat. right down to the pony motor😖hocked:

http://youtu.be/XTBPGveyA2U

http://youtu.be/dp4-ScDRqCk


here 2 video of the FIAT ALLIS

Hi, Boots.
Rye Tonn. That was my first thought about them when I first read the specs on them, back in 1971. They had 140 more horsepower than the D9G and were only about 6 - 8 ton heavier. A D6D has 140 hp and it's a bit more than 6 - 8 tons. By the time you gear a powerful engine, even a comparatively slow-revving one, down to the speed of a crawler tractor, it takes a fair bit of VERY GOOD steel AND a fair bit of engineering to keep that generated force directed through to the sprockets and down to the ground and stop it from tearing things apart along the way. For many of the manufacturers who are no longer with us, that was at least a part of what brought them undone - they could not master that little trick.

Even Cat have built some back ends that were not quite as robust as they might have been and even the MIGHTY D9 had some issues with the D9H model chewing up a few final drives during its career.

Just my 0.02.