Emtpying oil Via spool valve query
- Thread starter will_mck
- Start date
Massey Ferguson 6480
Member
I usually drain around 40L in this way then drain the rest from underneath,I wudnt keep pumping running it dry though.
- Location
- SW Scotland
I do it that way but stop the instant it splutters and drain the rest. You won't get it all through the spool and the stuff left in the bottom is the stuff you really want rid of.
Keep the two separate. The oil out through the spool will be relatively clean and useful for other things like the oil blow gun and chains.
Its a hell of a lot easier and cleaner to pump into drums than dick around with funnels and the like underneath a grubby tractor
Yes, but the last drum of swarfy dregs will have just gone right through the hydraulic system... the oil will be at its worst condition just as the pump runs dry. Better to put the whole lot out of the drain plug and use the volume to clean any crap out.
Each to their own, how many microns is the suction strainer and how many microns is the main filter? For the sake of it it's just not worth dragging up the crap. 100kg mineral tubs are great for it out of the bottom if you don't want to use a funnel.
Ever noticed when you have a bath after a really grubby day that the grit doesn't really move until the bath is 3/4 empty and then it takes a rush for the plug hole? That's exactly what your back end oil does when you pump it out.
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Regardless of where you're pumping the fluid to it still wont pick up the sh1t at the bottom of the case, so doesnt matter on the filtration level. Does using the hydraulic system in its normal fashion pick up said sh1t? Im going to assume you think if you hook up a large enough cylinder to a spool and empty the back end into it that you think the pump is going to actually pick up the sediment. No one would design a hydraulic system that dumb.
Other than your example being a prime form of pump failure?
deleted user 837354
Member
I wouldn't do it if it was me. Anything involving engine running + hot oil coming out of a tractor at pressure, nah, you're on your own mate. Drain via the drain plug.
You asked the question!!! I'll drop my oil out of the designated drain plug that the manufacturer put in to... err, drain the oil out of, you honk it out of the spools because you can't hold a funnel and then accept its not empty.... so you then need to get a funnel, take the drain plug out to get the rest of it out.
And its a damn sight easier on a massey 64 series to take what you can out through a hose in a spool first than to drain it all out the plug when said plug is in behind the hitch frame and splashes off it all over the place with the weight of 60+ litres pushing it out
Not my question...
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Massey Ferguson 6480
Member
This, if the back end drain was as accessible as the engine sump plug i would just drain it all to start with but as above its buried above the pick up hitch where you need an extension welded to the side of a socket to access it. Pumping so much of the oil into drums is no different that tipping a trailer so cant see the issue myself
Did you quote "no one would design a hydraulic system that dumb"?
- Location
- SW Scotland
Oil pumped out will be fit to go back in. Only need to replace the dregs through the bung 
Big saving to be made there.
Hark! Is that the sound of someone hyperventilating?
Big saving to be made there.
Hark! Is that the sound of someone hyperventilating?
Him or me?! Oil pumped out is usually filtered, but I wouldn't go as far as reusing it like that...Oil pumped out will be fit to go back in. Only need to replace the dregs through the bung
Big saving to be made there.
Hark! Is that the sound of someone hyperventilating?
- Location
- South Devon
Oil pumped out will be fit to go back in. Only need to replace the dregs through the bung
Big saving to be made there.
Hark! Is that the sound of someone hyperventilating?
And Yet , take your car to a main dealer , and they suck probably cold oil out the dipstick to save taking the under tray off .......No wonder the Ford Ecoboost is known as the Ecoboom engine
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