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Oliver 88 Electrical Controls

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gary

10-17-2000 06:58:27




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I was looking over a friend's Oliver 88 (diesel) and noticed there were eletrical controls on the steering column. Neither he or myself could even guess what they might be for. They are disconnected from whatever they were supposed to be hooked to. Does anyone have an idea what these are meant to do?

Thanks in advance,

Gary




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Dennis(WA)

10-17-2000 08:21:10




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 Re: Oliver 88 Electrical Controls in reply to gary, 10-17-2000 06:58:27  
The electric controls operated an electrically controlled hydraulic pump unit. The unit was mounted on the floor in front of the dash. The gearshift lever comes up along side of it. If you want to sell them, let me know.



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gary

10-17-2000 09:55:47




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 Re: Re: Oliver 88 Electrical Controls in reply to Dennis(WA), 10-17-2000 08:21:10  
Dennis,

Thanks a lot for getting back to me so quick. I had an idea they might have something to do with the hydraulic system. Why do you think they were unhooked? If you get a minute, could you give me some idea about how they were used to control the attachments? (Actually, it isn't my tractor, but I will pass it on that you are interested in buying them.)

Again, thanks.

Gary



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jld

10-17-2000 17:28:19




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 Re: Re: Re: Oliver 88 Electrical Controls in reply to gary, 10-17-2000 09:55:47  
The Hydra-lectric system allowed the operator to move a stop collar on the cylinder, from the tractor seat, to control working depth. Quite an advanced idea in the early 50's but did have maintenance problems. As with all things hydraulic and electrical; dirt, condensation, and corrosion did cause some frustration. There was a version I, your 1952 model would have version II and the super series had a version III. Each version was improved to reduce corrosion of electrical components. I recently bought column switches at a salvage yard for $30 each and then had to buy new contacts to make them work - they are getting scarce. It takes a Hydra-lectric cylinder to make system work as intended. You can also operate it mechanically and use a regular depth stop cylinder.

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Dennis(WA)

10-17-2000 16:09:01




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 Re: Re: Re: Oliver 88 Electrical Controls in reply to gary, 10-17-2000 09:55:47  
I can't say why they were disconnected. The hydraulic unit has two solenoids inside of it. These would activate the pump which were connected to two hydraulic cylinders that were attached one to each fender. Most commonly used to operate a three point hitch.



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gary

10-17-2000 17:08:17




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 Re: Re: Re: Re: Oliver 88 Electrical Controls in reply to Dennis(WA), 10-17-2000 16:09:01  
Dennis,
Thanks for getting back to me. I was just wondering if that set up might have been a maintenance headache. Gary



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