Have a 10 yd Heil sat retriever and a new packer cylinder was installed and the ejecting cylinder rebuilt. Also had the shop install a diverter valve (heil thinline) as the place I bought the truck from never put one on when they installed the tipper.
All was going good until a few days ago the tipper started moving very slowly, even with the fast idle on, and shakes/jerks very badly when lowering. Does this every time. Used to lift up pretty quick and the same down. this all started all of a sudden. all other hydralics work just fine. Checked the fluid, seemed fine, maybe slightly low, but put 5 gallons in anyway. Had a slight leak and lost maybe 2 gallons over a couple weeks before found the issue and fixed.