Maybe Too New To Be Considered (Diesel Electric D7E)

[img]http://static01.nyt.com/images/2010/01/24/automobiles/24dozer-inline1/articleLarge.jpg[/img]

I gather your talking about one of these wild bits of gear ????

I would think the main reason would be cost to build but Im only stabbing in the dark

Paul

Hi, Art from De Leon.
Cat decided that there was no real gain in having the high sprocket without the suspended track system as well. Since the suspended track system didn't start until the D8, D7 and down reverted back to oval track. The single blade lift ram is apparently an attempt to improve visibility by aligning the ram with the single center vertical bar in the front of the cab.

Any more questions?

Have you got more?

Hi, Mudgecko.
Got more what?

A kew-ree-yuss mind would like to know.

well with it being Electric i think the final drive are different as well and there is no need for a trans. you can make some diesel electric to have a small and still have lost of power. i heard that they where really making this for land fill work and not really as a dirt bulldozer.

Hi, Mudgecko.
Got more what?

A kew-ree-yuss mind would like to know.

[quote="Deas Plant."]Hi, Mudgecko.
Got more what?

A kew-ree-yuss mind would like to know.[/quote]

Any more info on this tractor!!




Catsilver do you know if they were a success or not? being diesel electric just wondering what was their purpose?
Gilbert.

Ya Cat claims low owning and operating costs, ya for the big corperate companys but not for the local contractor or small outfit. Cat gets $5000.00 bucks just for the electric motor that drives the water pump for the engine!!!!!!! And at a price tag for the machine at around $600,000.00? no thanks!!!

Gilbert, These machines were introduced when I was working for the marine engine division so I don't know much about them, I see one major change in design that will prolong final drive life, the dead shaft is no longer used to support the rear end of the track frame.
I suppose that it makes for less moving mechanical parts to wear out and I believe it has independent variable speed on each track, as for owning and operating costs being less, all I know is that each new machine generally moves dirt at less cost per ton, but they become more sophisticated and need dealer attention with a lap top if anything goes wrong.
As for being too expensive for the small man? I guess the D8 15A was looked on in the same way when it arrived back in the mid 50's.