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Farmall & IHC Tractors Discussion Forum
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Farmall 560 hydraulics

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Gary Hutchinson

03-20-2008 10:18:53




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My Farmall 560 has suddenly gone "weak". The last
time I used it everything was fine. I started it up and tried to raise the snowblower attachment
on the quick hitch and it couldn't lift it. I
plugged a gauge into all three of the valve
outputs and they're only reading 1200 p.s.i. The
suggestions I've heard so far are bad pump, bad
pressure releif valve, low oil in the hydraulic
system, or clogged filter. Any other opinions?

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Gary Hutchinson

03-21-2008 05:55:46




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 Re: Farmall 560 hydraulics in reply to Gary Hutchinson, 03-20-2008 10:18:53  
I'm definitely going to follow up on what you
are saying about the water contamination and
frozen filter. I'm in central Wisconsin and it has been a consistently cold winter. The tractor
never sees the light of day as it is in a shed.
Even when the temps get above freezing during
the day, it is in the 20's at night and it is
easy to imagine that filter isn't getting a chance to thaw out. Thanks guys for the advice.

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Joe Evans

03-21-2008 04:19:15




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 Re: Farmall 560 hydraulics in reply to Gary Hutchinson, 03-20-2008 10:18:53  
A.) Generally speaking, pumps don't suddenly go bad. They usually die a death of a thousand pin pricks--eating dirty oil over a number of years. You're observing 1200PSI. While not what you should be seeing which is 1500, the pump is still doing something.

B) Immediate failure to lift the fast hitch when it was working fine to me indicates a lack of oil getting to the suction side of the pump. I would heed Hugh's advice here. Our 460 is a notorious water generator mainly because it's not used enough and condensation takes place.

C) I assume you "dead-headed" a gauge into the hydraulic remotes. Remember, doing this requires no volume of oil other than what's needed to fill the remotes lines, valve bodies and pump cavity, but cylinder actuation requires volume. Little to no oil getting to the pump because of a frozen and snotty filter will do this.

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Hugh MacKay

03-20-2008 11:03:35




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 Re: Farmall 560 hydraulics in reply to Gary Hutchinson, 03-20-2008 10:18:53  
Gary: You don't mention if having freezing temperatures. If it happened sudenly, and in freezing temperatures, my reaction is water in the system and it froze in the filter. My experience, that will stop 560 hydraulics PDQ.



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the tractor vet

03-20-2008 11:00:50




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 Re: Farmall 560 hydraulics in reply to Gary Hutchinson, 03-20-2008 10:18:53  
Well since it is on the bottom end of the totom pole I would start with the pressure relief since ya don't have a Flow rater to run a full test on the system . But i would do a oil and filter change first .



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