Hi all. I'm currently rebuilding a B670 backhoe that is on a B7100. I picked the hoe up as a basket case and after paint im in the process of re-assembly.
It has it's own hydraulic system, tank, pump, valve etc. My question is the return line from the valve back to the tank. The tank has 3 3/8 pipe plugs in the lower 1/3 section of which 1 will be used to feed the pump. The return line from the valve is where i'm hung up. there are no fittings high on the tank for the return. I do see a small (3/8 " OD roughly) pipe that directly off the filter bracket. The hole in this pipe i feel is way to small for any return volume. What is this used for? Is it proper to return oil to a fitting that normally is below the oil line? Other than that the only other fitting is the fill at the top. I have a manual for mit but it dosen't show the return line hookup. Thanks for any help.
It has it's own hydraulic system, tank, pump, valve etc. My question is the return line from the valve back to the tank. The tank has 3 3/8 pipe plugs in the lower 1/3 section of which 1 will be used to feed the pump. The return line from the valve is where i'm hung up. there are no fittings high on the tank for the return. I do see a small (3/8 " OD roughly) pipe that directly off the filter bracket. The hole in this pipe i feel is way to small for any return volume. What is this used for? Is it proper to return oil to a fitting that normally is below the oil line? Other than that the only other fitting is the fill at the top. I have a manual for mit but it dosen't show the return line hookup. Thanks for any help.
