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Message: <blockquote data-quote="shepherd" data-source="post: 99825" data-attributes="member: 7978"><p>So, after getting the machine back together and running, out has exhibited a problem that did not exist before the I swapped the valve for a rebuilt one. At several points after getting it running and working again, it has had very jumpy, jerky, loud lift and bucket hydraulics. At first I thought it must be some air in the system, and it would get better. But the problem seems to come and go. Today it was the worst it's been, and the arms and bucket locked up completely for a while. The whole job entailed: swapping the control valve and rebuilding it with a bobcat kit. I split the bics from it, and re sealed everything. Several new lines, a few I made with larger diameter hose than was stock. But, those were all return lines and I don't think it matters. Specifically, the return from the control valve to the tank, the return from the left drive motor to the main pump, and the other return to the tank. I used 3/8 2 wire hose, as I had ends for 3/8" hose to make it work. I think they were 1/4 or 5/16 stock, with JIC-6 ends. I replaced both case drain filters. Rinsed the tank, new tank cap, and fresh AW32 hydraulic fluid Got the aux hydraulics working. I did a lotta other work to the machine, but this is all that was done on this system. I'm wondering if the BICS valve is sticking, as the way the hydraulics seem to bang on and off is similar to what happens when the seat bar gets lifted accidentally when you're running the machine. Anything else it might be? I'm fxxxin stumped..</p></blockquote><p></p>

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