[AT] Spam> Hydraulic Oil Ffoaming

[Cecil R Bearden]

I use 10W 40 Anti-Wear Hydraulic oil in mine mixed with 00 grease ( also 
called Centralube by Mystic)  In my Roadrangers.  I found a reference to 
Mobil 1 in a lot of manuals for Roadranger

cecil in OKla

On 9/15/2015 2:51 PM, charlie hill wrote:
> Cecil,  I never knew the Deluxe model used mineral oil.
> If I remember right that is the same thing you run in
> Fuller Roadranger transmissions.
>
> Charlie
>
> -----Original Message-----
> From: Cecil R Bearden
> Sent: Tuesday, September 15, 2015 2:20 PM
> To: Antique tractor email discussion group
> Subject: Re: [AT] Spam> Hydraulic Oil Ffoaming
>
> 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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