Help me! I have a used ambassaudeur 5000 and I was giving it a routine cleaning and I put it back together and there is now no drag or antireverse! all the parts are there, I have checked the schematics several times, and each time I have all the parts acounted for. What could be causing this and how do I fix it? I was planning on using it tomorrow, so if somebody could help me out with some thoughts, I would appreciate it very much! Thanks in advance!