951c steering problem

I bought a 951c with a right brake issue. It wouldn't turn to the right at all, only disengage the drive. I tightened the brake band some and now steers some while going forwards and a little less in reverse. The steering pedal on that side still goes right to the floor, I'm planning to pull the top cover this weekend to check it out. Is there something imparticular I should be looking for?
Thanks
Darren