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Ford Tractors Discussion Forum
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Re: for Bern

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sotxbill

10-05-2019 06:26:23




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unload valve/relief valve sticking open due to rust ring..




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Dale2

10-05-2019 10:14:36




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 Re: for Bern in reply to sotxbill, 10-05-2019 06:26:23  
where would I find those valves located



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Bern

10-05-2019 10:23:26




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 Re: for Bern in reply to Dale2, 10-05-2019 10:14:36  
The unload valve is located inside the lift cylinder piston assembly, and is the first thing I'd suspect if it doesn't lift at all when you know that you have pump flow. The IT manual should show you where it is.



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Dale2

10-05-2019 11:02:44




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 Re: for Bern in reply to Bern, 10-05-2019 10:23:26  
Bern have you ever seen the o rings between the transmission and the lift compartment fail? I have found air bubbles are always in the pump output



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Bern

10-05-2019 15:30:45




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 Re: for Bern in reply to Dale2, 10-05-2019 11:02:44  
I doubt that the o-rings have failed, since they are static. I myself would be looking for air leaks in the inlet tubing above the oil level, specifically any cracks in the pipe or manifold itself.

Or, it's possible that the seal in the pump you replaced somehow got damaged on installation? That could certainly cause it to suck air.



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Dale2

10-05-2019 18:00:34




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 Re: for Bern in reply to Bern, 10-05-2019 15:30:45  
Bern thank you and everyone else for their comments. I took the pump back apart and found I did not seat the seal fully. Fixed that and the pump primed up and the lift is working. So now to wait a few days and make sure the pump does not loose prime. That is the problem I was trying to fix in the beginning.
Thanks to all
Dale



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Bern

10-06-2019 07:02:38




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 Re: for Bern in reply to Dale2, 10-05-2019 18:00:34  
Thanks for the feedback. Awaiting good news in your final report in a few days!



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Dale2

10-05-2019 15:46:49




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 Re: for Bern in reply to Bern, 10-05-2019 15:30:45  
Thanks Bern Yes the seal could be leaking as I remember there was ascratch in the housing where the seal sat.



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