The fluid in the cylinders and hoses only matters after you fill them if they are NOT double acting. Once you fill a doulbe acting cylinder, it is always full of oil on both sides of the piston. There is no reason to run it over full. However, if you are running single acting cyliders, the the oil DOES return to the tank upon retraction. One note though on double acting...your level will move SLIGHTLY depending on whether or not your cylinders are extended or retracted. This is simply because there is more volume available to the base end side (read no ROD taking up space). This difference is going to be minimal.
Too much hyd fluid?
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Soundguy
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rback33 said:
Considering that many of us that use aux remotes are using devices that are on SA circuits.. and that we may drop one and pick up another.. the extra oil is.. or can be, necescary..
Soundguy
Soundguy
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If it's got one hose going to it.. it's SA
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whitearrow
Silver Member
would it show up any different on the dipstick if the 3 ph is all the way up or all the way down as far as hydraulic fluid?
thanks,
whitearrow->>>---------------->
thanks,
whitearrow->>>---------------->
Soundguy
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Probably not.. Most 3pt systems using internally mounted lift cylinders have a very low displacement.. probablt in the 'ounces' range...
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Crisswell
Bronze Member
I've been reading this thread with great interest! I'm a newbie, too, with zero hours in the seat (other than the demo drive, LOL!). Tractor should be here in about 2 weeks.
My question is doesn't more fluid (over full) = more internal system pressure? The only experience I have is with oil in an engine. If you want to blow the seals, keep you oil over the full line for a period of time.
I understand what you mean about checking the hyd fluid and filling after extending the implement cylinder rods, to make sure you haven't dropped the tractor resovoir to below min - But the part that's confusing me is, does that mean you may have to drain the tractor system back to some safe level above max when you unhook the implement when you're done?
I'm assuming that not all attachments are created equal when it comes to hyd fluid requirements - some need more, some need less. So how do you know from the dipstick how much is too much at the end of the day and you've unhooked? Or have the mfg's build the hyd fluid resovoirs so much bigger than the tractor carries at "full", that you don't have to worry about it?
(I'm also assuming that most of the fluid from an attachment drains back into the tractor resovoir before you unhook)
Like Bob, the only attachment I have that requires hyd fluid is the FEL, right now, but who knows what other things I'll be able to justify later
Thanks.
Andy
My question is doesn't more fluid (over full) = more internal system pressure? The only experience I have is with oil in an engine. If you want to blow the seals, keep you oil over the full line for a period of time.
I understand what you mean about checking the hyd fluid and filling after extending the implement cylinder rods, to make sure you haven't dropped the tractor resovoir to below min - But the part that's confusing me is, does that mean you may have to drain the tractor system back to some safe level above max when you unhook the implement when you're done?
I'm assuming that not all attachments are created equal when it comes to hyd fluid requirements - some need more, some need less. So how do you know from the dipstick how much is too much at the end of the day and you've unhooked? Or have the mfg's build the hyd fluid resovoirs so much bigger than the tractor carries at "full", that you don't have to worry about it?
(I'm also assuming that most of the fluid from an attachment drains back into the tractor resovoir before you unhook)
Like Bob, the only attachment I have that requires hyd fluid is the FEL, right now, but who knows what other things I'll be able to justify later
Thanks.
Andy
Farmwithjunk
Super Member
In every case I know of, the oil resevoir is simply that. There is no "pressure" in the "sump", be it a tranny or rear end. The hydraulic system picks up oil from that sump, then the pump puts it under pressure with-in the confines of the internal system. Transmissions and rear ends SHOULD be vented to prevent any accumulation of pressure (from heating of the oil?) to prevent seal damage.