I have a 310b I assume was built in 85 by the product I’d tag. I have had an issue with the hydraulics not working. The front end loader would take two or three minutes to raise. The backhoe works faster but nowhere near right. But I could run the backhoe all the way out and still have enough power to lift the back tires off the ground. Well after some more trouble shooting I found I could pull the crowder arm till it hit bypass and the front loader would start working.
So I was thinking something was bypassing in the spool valve,We did swap the relief valve and nothing changed. We pulled the valve assembly and pulled the one valve apart. But no smoking gun, it all looked pretty good. But the machine is 30 plus years old. So I figured we would do all new o rings/ seals and put it back together.
So now to my new problem, I can’t tell the parts guy what hoe is on my rig. There are two versions, a 9405,and a 9500. I have crawled all over it trying to find the difference or the markings.
So anyone shoot me in the right direction?
So I was thinking something was bypassing in the spool valve,We did swap the relief valve and nothing changed. We pulled the valve assembly and pulled the one valve apart. But no smoking gun, it all looked pretty good. But the machine is 30 plus years old. So I figured we would do all new o rings/ seals and put it back together.
So now to my new problem, I can’t tell the parts guy what hoe is on my rig. There are two versions, a 9405,and a 9500. I have crawled all over it trying to find the difference or the markings.
So anyone shoot me in the right direction?