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What ever happened to electric PTO?

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RayP(MI)

10-21-2004 05:05:54

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There's a posting over on the Deere board discussing diesel over electric for powering larger tractors, like railroad engines use. Got me to wondering - International Harvester had some electric generator driven balers out a few years back. Can anyone fill me in on the details of these. Apparently they weren't terribly popular.

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gwb

10-22-2004 16:56:46

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Re: What ever happened to electric PTO? in reply to RayP(MI), 10-21-2004 05:05:54

As old Woodrow Wilson (Woody) Guthrie of Okemah, Oklahoma used to say, in "Talkin' Bonneville":

Them salmon are just like politicians
They run ever' four years
Course I always figgered
One day the whole dang country would be run by eeee-lectricity!

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Thanks for the infro

10-21-2004 19:30:07

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Re: What ever happened to electric PTO? in reply to RayP(MI), 10-21-2004 05:05:54

Thanks for the interesting information - I can remember seeing a couple of ads in farm magazines, never saw on in real life. I agree that I'd not want to trouble shoot in the rain! And I suspect that the conditions under which the generator and motors would be used in, that there would be lots of maintenance.

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Wardner

10-21-2004 22:07:00

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Re: What ever happened to electric PTO? in reply to Thanks for the infro, 10-21-2004 19:30:07

I doubt if you could get a voltmeter to move with one probe on a phase terminal and the other in your mouth. That applies to rainy days too.

There is no dust in my generator and explosion proof motors can be purchased.

The Electrall makes alot of sense on non IPTO tractors.

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Wardner

10-21-2004 08:27:04

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Re: What ever happened to electric PTO? in reply to RayP(MI), 10-21-2004 05:05:54

IH had considered the concept of electric PTO from the '20s. In 1930 they built a prototytpe 10-20 with a front mounted generator. It was coupled to the front of the crankshaft. It was located ahead of the radiator. The capacity was around 10-15 KW. There is a photo in "150 years of IH" written by C.H. Wendel.

The concept became a reality in 1954 when IH built tractors with IPTO. The Electrall appeared during the summer on a few of the last SMTAs. Power is derived from the IPTO gear and runs through a special Electrall gearbox and v-belt to a General Electric 13KW generator. The availability of the Electrall continued until the end of 560 models. There are several pictures in the Photo Section of this site. Search for Wardner or Electrall.

Switchable PTO seems to be redundant after IPTO was offered. IH only sold 103 of these mounted generators. The company eventually got rid of their stock by selling them as rear driven PTO generators. They were mounted on Fast Hitches or trailers. Some were sent to the Truck Division and driven off the transmission PTO.

I have one that was sold with F400 #519. It works fine and I occasionally use it. I prefer to disconnect the belt when it is not being run. Only takes a minute to reconnect. I suspect the original owner left it connected full time.

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Bob M

10-21-2004 05:41:48

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Re: What ever happened to electric PTO? in reply to RayP(MI), 10-21-2004 05:05:54

The IHC electric PTO system was the "Electrall". Interesting concept, but the system proved to be expensive, very heavy and required much more maintenance than a simple shaft spinning at 540 RPM.

Also I've never heard it mentioned - but I wonder about the inherent safety of the system. Was probably OK when new, but after a few years in the field I doubt I'd want to troubleshoot prolems with the generator, motor and interconnecting cables - especially in the rain!

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Allan in NE

10-21-2004 05:27:33

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Re: What ever happened to electric PTO? in reply to RayP(MI), 10-21-2004 05:05:54

Ray,

Yes, weren't those the ones that used that IH generator mounted at the pulley drive? Can't remember what they called that thing.

Allan

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harley

10-21-2004 07:27:56

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Re: What ever happened to electric PTO? in reply to Allan in NE, 10-21-2004 05:27:33

Guy Fay's book has a picture of one hanging on the side of a 450 I think it is from the Historical Society up there in Yankee country. Looked about as big as a bushel basket.

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