chroniekon
Senior Member
I recently purchased an old 310 backhoe to use on my small farm. I changed all the fluids and filters throughout the machine. The old hydraulic/transmission oil smelled like 90 wt gear oil, so I used another tractor with a front loader to 'exercise' each cylinder and then disconnected each hose at it's respective cylinder and blew air (approx. 50 psi) back through the system to drain as much oil from the system as possible. Now, with the correct oil, the hydraulics don't seem to have much power. Everything moves fast and smooth through it's range of motion. The loader won't lift the front off the ground and the hoe won't dig. The out riggers will lift the back off the ground. Any ideas?