Status Update: The AGCO guy found a burr that was messing with the control valve operation. He also replaced the broken control valve spring with one from a WD pump. The broken one (what was left) was about 4 inches in length. Supposed to be 7 inches in length per one source.
Anyway, although it took a considerable time to prime, it now raises, slowly, but does not seem to want to lower as long as the pump is running, although with the control lever down, you can apply quite a bit of force and push it down part way (with pump running). It goes down fine with the pump not running and the handle down. Initially, with the handle lowered, it slowly crept up. It seemed to get slightly better as the test progressed. With the handle all the way up, it seems to be applying maximum force (even if that may be a diminished maximum).
He did not replace the gasket on the front end (flow control adjustment). He thought it would not leak there, but leaks quite profusely. Also leaking around the check valve fittings. I suspect he didn't tighten them or the copper seals need replacing.
I've seen postings with similar behavior, but haven't had time to review. Ideas?
Topic Options
Post Options
Thanks(0)
