Sharp SF-2220 Service Manual page 76

6) Lens wire replacement
A. Lens wire removal
1 Remove the OR guide L and R, and remove the table glass.
2 Remove the dark box cover upper.
3 Remove the lens motor.
4
5
6
6 – 13
MC-Service
Remove drive spring 4 and 5.
Remove the E-ring which is fixing the roll holder drive shaft, and
remove the roll holder unit.
Remove the zooming cam and the zooming cam drive gear (which
are fixed with screws).