Our JLG 1200 is making a screeching/ whistling sound right after you stop retracting the boom. It sounds like its coming from inside the boom but i cant pinpoint exactly where. My guess is its something hydraulic related like air in the system. My questions would be how to get rid of this noise?
I will mention that we had to replace the holding valve on the back of the extend cylinder last week....but this noise was happening before this was replaced.
Any ideas?
I will mention that we had to replace the holding valve on the back of the extend cylinder last week....but this noise was happening before this was replaced.
Any ideas?