This car has a UV5AT ECCO VALVE, MOTION CONTROL, 4 stop. The car vibrates as it goes into transition, leveling, up stop, and take off both directions. WE have changed the valve, repacked the pistons, changed guide shoes, and still the car vibrates. I want to say its the packing, but we already repacked it. I am looking for any suggestions. How do you tension the cables on this lift? I get the vibration mostly on the left piston. The sheves are on the top of the piston. Ropes from the bottom of the car to bottom of the pit. Thanks guys.
