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Massey Harris & Massey Ferguson Tractors Discussion Forum

Loader valve freezing

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Steve IA

12-19-2007 09:14:00

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The MF-32 loader mounted on my MF 135 will freeze the bucket dump valve when below freezing temps. The arm lift is not a problem. It will eventually thaw, but I'd like to drain the obvious water out of the valve. There are a couple of nuts that may/may not be correct to drain the valve. I don't know jack about hydraulic valves and don't want to take nuts off that my be holding vital parts that will spring all over the shop when removed. I'm guessing B below. C= offending valve
B= Big nut directly under the valve shaft
A= Smaller nut in the area.

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chuck bergstrom

12-19-2007 20:24:14

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Re: Loader valve freezing in reply to Steve IA, 12-19-2007 09:14:00

Steve, I will try to find a bulletin tomorrow.
Oil is pressuring past an o ring and locking it
up. We were dealers and it is a common problem.
from memory you can temporarly relieve it by
removing large spool type part below valve and
then re-install. Chuck

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Steve IA

12-20-2007 02:23:42

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Re: Loader valve freezing in reply to chuck bergstrom, 12-19-2007 20:24:14

Thanks, Chuck. I'll be waiting for more information. Seems strange that it's not water when it only happens when it's below freezing. Steve IA

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Marlowe

12-19-2007 14:50:34

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Re: Loader valve freezing in reply to Steve IA, 12-19-2007 09:14:00

either your hyd oil is full of water or the O ring at c is letting water in. tractor sit out side? how do you drain the water out ?

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Steve IA

12-19-2007 15:25:18

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Re: Loader valve freezing in reply to Marlowe, 12-19-2007 14:50:34

Tractor is inside now, but was outside prior to my owning it. I drained a lot of water out of the loader reservoir when I serviced it after buying.

"HOw do you drain the water out?" That's my question.. :-) Which plug drains the valve assembly.
Thanks STeve

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marlowe

12-19-2007 19:25:26

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Re: Loader valve freezing in reply to Steve IA, 12-19-2007 15:25:18

i don't think there is any plug to drain it the plugs you show are spring ports and relief valves

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Steve IA

12-20-2007 02:21:42

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Re: Loader valve freezing in reply to marlowe, 12-19-2007 19:25:26

OK Thanks.
Steve

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