Chris up north
New User
The boom cylinder has been dropping very slowly for awhile, no real problem. Yesterday I was pulling posts (working hydraulics hard) when all of a sudden the boom dropped like a stone. No hoses blown. Had to rev engine to high RPM to get the boom to come up. As soon as I let the lever go back to the neutral position, boom drops fast. Drove backhoe back to yard, but had to hold boom lever in raise position so boom would not drop. Any ideas? Would it just be the cylinder packing let go or a deeper issue in the valve assembly. Pressure relief valve? Thank you in advance.