Top of cutter mechanism side panel hangs from pair of brackets.
Loosen two screws on rotor vane shaft mounting bracket. Turn bracket left until bracket is clear of screws.
Grasp red knob and draw rotor vane shaft out.
Slide vanes off right drive support. Pull rotor vanes out front of machine.
Position new rotor vanes on right drive support shaft, reinstall knob, and insert through side of machine into new
Reinstall mounting bracket and tighten screws.
Reinstall left cutter mechanism side panel.
Turn on circuit breaker.
Turn on main power switch.