Kenwood Chef XL Gearbox exploded view / washer positions

Does anybody nlow where the top (#1) and the middle (#3)washer go?

Gearbox of a Chef XL, took it apart and these 2 came out of cleaning bucket at the end.

I am pretty certain that:

#2 (2 of them) go on the 2 middle gears, top

#4 bottom, driveshaft that connects to the slow speed

#5 slow speed