question Zetor 3321 Super with lift trouble

I have a 3321 with 72 hours. I have noticed that when I am using 3-point implements in the raised position there is a sudden jerk and the lift raises about an inch. I changed the hydralic filter for the first time and there was a fairly good chunk of a rubber gasket in the bucket. It is under warranty and I haven't talked to my dealer yet. It has to go back to the shop to get the fuel gauge fixed anyway. I was just wondering where the piece of rubber probably came from and is this causing my problem?

I dont know where your gasket came from.... ask your dealer if he recognises it.. By the way, it could also be the filter canister gasket...