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Lift on Satoh Bison suddenly quit lifting

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Jim Guest

05-01-2000 17:26:20




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I started the Bison, lifted the box blade, set it down and it wouldn't lift again no matter what I tried. I removed the seat and cast iron cover to see if I could see anything that was broke, but things looked OK.

The oil pressure on the discharge line fron the pump didn't seem to have the pressure I thought it should so I removed the pump from the front of the crankshaft to see if the pump shaft had broken. It looked OK.

I pulled of the lift valve assembly and did a quick peek in part of it and nothing looked broken.

I don't have any kind of manual on this little tractor, so it looks like I'm going to have to do some serious "exploratoty surgery".

Before I start does anyone have any advice for me?
(The first thing I did was to check the hydralic oil) Jim

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larry

05-03-2000 15:58:13




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 Re: Lift on Satoh Bison suddenly quit lifting in reply to Jim Guest, 05-01-2000 17:26:20  
I would investigate the pump first. are the gears still keyed to shaft, Is there a pressure relief on the pump stuck open? other internal leaks?



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