Posted 8/20/2013 14:31 (#3278184 - in reply to #3278110) Subject: Re: 4930 boom won't stay up
NESD
Most likely a failed check valve in the main valve block, there are two checks for each boom section and the main is in the center of the valve, the block is stamped to identify the sections, remove the valve and inspect, probably just replace both check valves.
4930 boom won't stay up
