[AT] Spam> Hydraulic Oil Ffoaming

[Cecil R Bearden]

You may have to get it at an oil distributor.   GL1 is PMO...  TSC 
should have it branded as Ford Tractor oil or fluid.  All the fords used 
it until they started the thousand series...  Since it has got hard to 
find, a lot of dealers tell you that 303 or universal or even ATF will 
work.   It won't is is too thin...The extreme pressure additive that is 
in GL5 is what makes it foam.....

Cecil in OKla



On 9/15/2015 1:38 PM, Dennis Johnson wrote:
> Cecil,
>
> Thanks, I bet that is the issue. It was low and I topped off with gear oil, since that is all I could find at Tractor Supply, or similar place.
> Where do you get the mineral oil??
>
> Thanks,
> Dennis
>
>
> Sent from my iPad
>
>> On Sep 15, 2015, at 1:23 PM, Cecil R Bearden <crbearden at copper.net> wrote:
>>
>> I would also bet its water in the oil instead of really foaming.  The
>> gearshift boot and the top link shaft into the tip deck are the 2 places
>> to get water in.  Try to keep the tractor out of the =weather if at all
>> possible.
>> Also, if it is a  35 Deluxe, it requires PMO 90Wt  This is a Pure
>> Mineral OIl 90 Wt.  303 fluid and MF1129A is20 wt.  90Wt gear oil is
>> equal to about 50 wt motor oil.  It must be Pure mineral oil or it will
>> foam. Gear oil like GL5 will foam. The screen should be located between
>> 2 "cups" one on top and one on bottom and held with a bolt with a tab on
>> the head to remove it.  I worked in the local MF dealership while in
>> H.S. and college from 68-75, back there in the old days....
>>
>> Cecil in OKla
>>
>>
>>
>>
>>> On 9/15/2015 11:00 AM, charlie hill wrote:
>>> Dennis,  Bo's advice is sound but one thing you can
>>> look for.  If it sits completely unused until you get back to it,
>>> before you start it up take the drain plug out.  The fluid will
>>> have had time to completely settle out and if there is water
>>> in the system it will come pouring out first, followed by the oil.
>>> If you drain it like that and let some of the oil out, then put the
>>> plug back in, top it off and try it and see if the problems is gone
>>> or improved.
>>>
>>> I don't have a lot of MF experience but I've had water get into the
>>> hydraulics on my Allis tractors and was able to get it out using this
>>> method.
>>> I agree with Bo, changing it out is good advice.  Either way drain it before
>>> you ever start it up and the water and crud should come out first.
>>>
>>> Charlie
>>>
>>> -----Original Message-----
>>> From: Dennis Johnson
>>> Sent: Tuesday, September 15, 2015 10:11 AM
>>> To: Antique tractor email discussion group
>>> Subject: [AT] Spam> Hydraulic Oil Ffoaming
>>>
>>> I have a MF35 Deluxe on Oklahoma. 3 point used to work fine a year ago, but
>>> get weak and slow after 2 hours of use. Now it works for 10 to 15 minutes
>>> and then the oil foams and lift stops working until after it sets and the
>>> foam goes away.
>>> I have checked the screen and it seems to be OK by feeling around it, but
>>> have not taken it out. Feels like it is wired in place. Oil level is fine.
>>> I wonder if there is condensation in the oil causing the foaming.
>>> I also wonder if the relief valve is dumping oil and that is causing
>>> foaming.
>>> I have not had enough time in Oklahoma to spend a lot of time trying various
>>> things. Next time there I plan to completely drain the system and reseal
>>> covers that are leaking.
>>>
>>> Any thoughts on why this is foaming?
>>>
>>> Thanks
>>> Dennis
>>>
>>> Sent from my iPad
>>>
>>> Sent from my iPad
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