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White 2-85 Hydraulic Pump


 
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Trevis
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Joined: 03 Mar 2013
Posts: 7


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PostPosted: Sun Mar 03, 2013 7:16 pm    Post subject: White 2-85 Hydraulic Pump Reply to specific post Reply with quote

Wondering if anyone can Help? I have a 1981 White 2-85 with 8500 hours. The Hydraulic pump quit working, just prior to this happening, the pump started making a noise as if it was starving for oil. I installed a new (re-built) hyraulic pump, but the noise coming from this new pump is the same as before (like it is starving for oil and chattering). I've replaced the oil filter and used fresh oil, I'm using a 22 weight hydrauilic oil since it is wintertime. There is a butterfly valve on the oil filter head that is used for bleeding out the air. When I crack this valve open the noise stops but I have no hydraulics at all. When I tighten this valve the starving noise starts and I have minimal hydraulics. Also, when I pull the dipstick to check the oil, the oil is foamy/bubbly like it is getting injected with air. I have been told by my local dealer that there is no lift/charge pump in this model of tractor. Also I've been told there is no other oil filters to change. This model has a seperate oil resevoir that holds 32 litres (7 gallons) of oil. Can anyone explain what I should try next?
 
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Don-Wi
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Joined: 12 Aug 2002
Posts: 8136
Location: Hilbert, Wi

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PostPosted: Sun Mar 03, 2013 7:21 pm    Post subject: Re: White 2-85 Hydraulic Pump Reply to specific post Reply with quote

Try asking over on the Oliver board. The White 2-85 is basically what the Oliver 1755 turned into, and it uses the same hydraulic system with the 17,18,1955's and the other larger models. I know the question has come up before, and those guys should be able to help.

Donovan from Wisconsin
 
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Trevis
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PostPosted: Sun Mar 03, 2013 7:40 pm    Post subject: Re: White 2-85 Hydraulic Pump Reply to specific post Reply with quote

Thank you. I have now posted it in the Oliver section.
 
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Josh in Pa
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PostPosted: Mon Mar 04, 2013 8:20 am    Post subject: Re: White 2-85 Hydraulic Pump Reply to specific post Reply with quote

Shut the tractor off, then open the bleeder until oil comes out. Try that. You probably have a leak on the suction side of the pump and it is pulling air in.
Josh
 
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