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Message: <blockquote data-quote="gregb" data-source="post: 43872" data-attributes="member: 1531"><p>Hello - I've got a 1985 New Holland L555 with the Perkins diesel. The boom travel up and down is suddenly very slow. Bucket cylinder works like normal. Boom cylinders were rebuilt by a local shop two years ago. I can hear the engine work when I raise or lower the boom, like the system is constricted. In float position the boom moves down just as slow. I used it this winter to push snow and then a little this spring to push up a manure pile. No problems. Had it parked in my shop barn after the last work with the boom raised and pinned. Went to do some more work and the starter was out. One month later the starter was replaced, and when I went to move it out the boom circuit was acting up. Pulled the seat and checked continuity in the pressure switch under the seat and it seemed to be stuck. Flushed it out with WD-40 and it is working again. I haven't checked the boom lock solenoid yet. Can it get stuck part way where you have some boom lift and lower function? Or should I focus on the control valve assembly or a relief valve. I haven't had any problems with this portion of the machine and I don't have a lot of experience with this area either. One little possible clue was last year loading manure when I wanted the boom in float position it wouldn't lock in after I ran it for a while, like when it got hot. This winter the float position seemed to work ok, so I don't know if it's connected somehow. Thanks in advance for any suggestions. I do have the operator's manual, the service manual and the parts manual for this machine. Thanks, Greg</p></blockquote><p></p>

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