hydraulic fluid

Anonymous-0

Well-known Member
hi had trouble with hydraulic systems last winter.
fluid very milky and screeching noise every so often, also leaking with squirt just below right knee. i think the valves are all good now.
how to get all the milky fluid out. should i take it all apart? or just drain and add new?
 
Would help if we knew what size tractor or capacity/gallons you are working with, usually if you drain out all or nearly all oil (& water, that's whats making it milky), then run it a year, (by the way IH wanted it changed every year anyway), that will usually suffice.
 
HI,its a 350 or 300 utility,i have both. Took all apart last fall,including the tank under seat,lines all. Has one cylinder. Flushed ALL in parts wash tank, including cylinder. Pump NOT removed or cleaned. About 4 gallon capacity in system. New fluid put in. Also,did big switch around with 6 valves I have on hand and found on that seems to works; which means it will hold fast hitch plow in up position for ever.
Also, the pipes from tanks to pump breaks.I(have 4 of these machines and they are ALL broken here where steel pipes mount to tank. I can fix that.
BUT why does system groan and squirt fluid out that hole? and why is the fluid shot after a few icy months?
thanks all in advance
 
This version of tractors both Farmall (row crop) or International (utility/industrial) had a separate smaller reservoir for the hydraulics, water from condensation gets into the fluid & contaminates oil quickly, it turns milky on purpose by IH to tell its overloaded with water. This system was replaced on 340/460/560 with entire rear frame & transmission case was Hytran system reservoir. 10 to 15 gallons verses 5 on yours just works better against contamination. I would flush it again with Hytran & watch color.
 
(quoted from post at 14:17:09 04/19/13) hi had trouble with hydraulic systems last winter.
fluid very milky and screeching noise every so often, also leaking with squirt just below right knee. i think the valves are all good now.
how to get all the milky fluid out. should i take it all apart? or just drain and add new?
Some fluids do not take much water to turn milky. You will almost never get all the water out unless you completely dis-assemble your hydraulic system. Best you can hope for is to drain the easy parts, reservoir, accessable lines, cylinder, etc. Almost impossible to drain valves and hidden lines. Also in cast parts, even small pockets will hold water. Water may also be causing the squirting you see. Drain what you can and maybe change it again after using it for 2 or 3 months.
 
Hello
Trying to get my dads old 460 (utility) back into something he would have liked. I have the majority of leaks taken care of except for the hole in the steering column plug. Did you ever find out what that was about? Have concearns it may be a seal lower down in the column migrating up and out of the plug with the hloe in it.

Thx
 

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