Why do you think the manufacturer put the sticker there in the first place, for decoration..?My 310SG has a sight tube that indicates the cold oil range. I don't see anything in it, but the hydraulics seem ok. Should I add some oil?
This is my first expensive backhoe. My Ford 4500 had a dip stick for the hydraulics. Didn't seem to matter if it was on the stick or not. So yeah, it practically was decoration. I just don't want to overfill it, and since the hydraulics are working, I wasn't sure. The next question is, how level of a surface do I need? My garage is about the only thing dead level, and it has an 8' door. Driveway has a slight cant to it.Why do you think the manufacturer put the sticker there in the first place, for decoration..?
A very good point about using the correct fluid.Just get it relatively level and get some of the correct HIGH GRADE fluid in that sight glass, it will do no good to the machine or you if you run it with low fluid. You could also level it up with the stabilizers.....
A very good point about using the correct fluid.
However based on post #3 above, don't level it using the stabilizers because they are supposed to be in the raised position when you check the oil level. Doing it with them down will result in an incorrect reading in the sight glass.
Here's a suggestion. Take the fill cap off the tank and use a dipstick down inside to find the level of the oil. Compare that to the level of the sight glass.
I have seen cases before of sight glass fittings getting plugged before so that even though there was an adequate amount of oil in the tank it just didn't show in the sight glass.
A very good point about using the correct fluid.
However based on post #3 above, don't level it using the stabilizers because they are supposed to be in the raised position when you check the oil level. Doing it with them down will result in an incorrect reading in the sight glass.
Here's a suggestion. Take the fill cap off the tank and use a dipstick down inside to find the level of the oil. Compare that to the level of the sight glass.
I have seen cases before of sight glass fittings getting plugged before so that even though there was an adequate amount of oil in the tank it just didn't show in the sight glass.
Simple. Generally one side of the cylinder has the rod in it. So for every inch/foot/whatever that the piston moves, the quantity of oil leaving one end cannot be the same as the quantity entering the other end. Basic physics.
In the example below if the cylinder is extending it will require a larger quantity of oil to enter the LH port than the quantity that will be leaving the RH port.
That's why hydraulic control valves are often a lot more complicated that one would imagine they need to be, to cope with different quantities of fluid moving in the supply and return side of a single cylinder.
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