Which series 933 do you have ? The 11A series is like the D2, the 42A 933 brake bands can be removed without pulling the finals. if it is the 42A I can post the instructions.
Yes you need to removed the final drive to change the brake band
If its a 42A. can be done in place, through the top and bottom. Not easy, and better with a second set of hands.
42a direct start


Hope you can read these.![]()
Hope you can read these.![]()