Do you have the HST? I have a T503 HST and I had a problem with my forward pedal. I had to pull it up with my foot so I could use the reverse pedal to go backwards. I sprayed silicon on the shaft and where the pedal went through the floor. I think I even cut the rubber back a little where the pedal comes through the floor. Between that and just using it the problem got a lot better overtime but when it gets cold it acts up it just once awhile now. I think it needs to break in a little. I still only have 30 hrs so hopefully it will continue to get better with use.