[AT] Spam> Hydraulic Oil Ffoaming

Dennis Johnson moscowengnr at outlook.com
Tue Sep 15 13:16:06 PDT 2015


Cecil,

Thanks, now that I know what I need it will help

Thanks
Dennis


Sent from my iPad

> On Sep 15, 2015, at 2:43 PM, Cecil R Bearden <crbearden at copper.net> wrote:
> 
> Try this:
> 
> http://www.tractorsupply.com/tsc/search/gl-1+sae90+mineral+oil+tractor
> 
> 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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