The video shows free play in only the bucket curl cylinder. Watch the front tires as the tractor moves back and forth through all of the cycles. The lift and clam shell cylinders have no movement even though you are starting with the front tires off the ground.
As a guess, the piston seals in the curl cylinder is leaking badly. The proof requires a suitable pressure gauge, probably 3000 psi, and the dealer should have used one to diagnose the problem the first time.
The only way to inject air into the system, short of disconnecting and draining lines, is through the supply line from the reservoir to the hydro, or through a poorly sealed hydro filter. If air is being ingested, it can be heard as a static or crackling type of sound that doesn't go away as long as the engine is running. Air introduced by draining a line, or rebuilding a cylinder, is chased out of the system by the positive flow from the pump when the cylinders are actuated. It only takes a couple of full stroke cycles of the cylinders to chase the air out of even a pair of freshly rebuilt cylinders.
Tell the dealer to do a pressure check on the curl cylinder. It isn't acceptable in that condition on a new tractor and most likely needs a rebuild unless fault can be found with the curl valve spool.
As a check when you go to pick it up, hook a chain to the rod end pin of the curl cylinder and drape it over the bucket cutting edge. Use the chain to lift a 6' tiller, or something of similar weight, using the curl cylinder. And don't let him snow you that the loader won't lift that much. The lift cylinders may not be able to raise the arms any higher, but the curl cylinder doesn't operate at the same leverage disadvantage.
As a guess, the piston seals in the curl cylinder is leaking badly. The proof requires a suitable pressure gauge, probably 3000 psi, and the dealer should have used one to diagnose the problem the first time.
The only way to inject air into the system, short of disconnecting and draining lines, is through the supply line from the reservoir to the hydro, or through a poorly sealed hydro filter. If air is being ingested, it can be heard as a static or crackling type of sound that doesn't go away as long as the engine is running. Air introduced by draining a line, or rebuilding a cylinder, is chased out of the system by the positive flow from the pump when the cylinders are actuated. It only takes a couple of full stroke cycles of the cylinders to chase the air out of even a pair of freshly rebuilt cylinders.
Tell the dealer to do a pressure check on the curl cylinder. It isn't acceptable in that condition on a new tractor and most likely needs a rebuild unless fault can be found with the curl valve spool.
As a check when you go to pick it up, hook a chain to the rod end pin of the curl cylinder and drape it over the bucket cutting edge. Use the chain to lift a 6' tiller, or something of similar weight, using the curl cylinder. And don't let him snow you that the loader won't lift that much. The lift cylinders may not be able to raise the arms any higher, but the curl cylinder doesn't operate at the same leverage disadvantage.
