[AT] Hydraulic warm up

[Carl Gogol]

Most older tractors have "open center" hydraulics, so all oil that is not 
tied up in hoses or cylinders beyond the control valve(s) will continuously 
circulate and warm from friction in the pump and hoses.
Carl   - Manlius, NY


-----Original Message----- 
From: Ralph Goff
Sent: Friday, November 28, 2014 2:38 PM
To: Antique tractor email discussion group
Subject: Re: [AT] Hydraulic warm up

On 11/28/2014 1:10 PM, Mike wrote:
> Hi Guys, I need to do some work with my Massey Ferguson 255, an it's
> only about 20 degrees outside. When its that cold, the hydraulics really
> shudder and shake. Does idling the tractor for a while warm up the
> hydraulic fluid too, or do the hydraulics need to be worked to warm up
> the fluid.
>
Mike. my old Super 90 Massey does fine in our extreme cold Sask.
winters. No shudder or shake. The hydraulics are always slow no matter
summer or winter.
I think idling will circulate and warm up the hyd. oil somewhat but the
oil that is out in the front end loader cylinders will not change at all
unless it is worked up and down
some. Mine has a tendency to blow oil out the seal around the rods on
the bucket cylinders if it is extremely cold.
20 degrees would be a "warm" day here in Sask. right now. +5 seems to be
the daytime high.

Ralph in Sask.
>

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