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AC7000 Power Shift problem

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Farmer Tom

06-24-2002 06:22:51

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For some reason, after chainging the tranny/hydraulic oil and filter (done as per owners manual), the pressure sending switch on the upper right rear of the power shift housing sprung a serious leak! After a short slow speed test drive (in all about 2000ft) all of the sudden the tractor started to act funny like the drive line was causing the tractor to shake, lunge, shimmey, etc.. Parked it and that's when I found the leaking switch.

So now the question. Would this leaking pressure switch cause irractic action of the power shift tannny system??? Or, did I just get a problem?

Thoughts and information on this appreciated!


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Craig MO

06-26-2002 19:34:09

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 Re: AC7000 Power Shift problem in reply to Farmer Tom, 06-24-2002 06:22:51  
The pressure switch would not cause this problem but cavitation or air from changing fluid and filter. Restart tractor and if pressure light goes out rev tractor up and turn steering against relief for 30 seconds and the air should purge itself and tractor work properly.

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Farmer Tom - Thanks ...

06-27-2002 09:22:36

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 Re: Re: AC7000 Power Shift problem in reply to Craig MO, 06-26-2002 19:34:09  
Thanks Craig MO for the info. I will be replacing the leaking pressure switch unit and then do what you said this weekend. I'll let you know how it works/results.

Thanks for you suggestion on a fix for my "problem".

Farmer Tom (OH)

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