Franny

Please help me! My problem with fixing my Zanussi WDT1085 Washer Drier is still ongoing. I have removed the facia and the programme knob. When I turn the metal shaft that the programme knob is attached to (and that pokes out of the programme(?) box I can advance the programmes manually but the Timer Knob Cam Disc (orange plastic) still turns freely without advancing the programmes. Obviously it is not attached properly to the metal shaft. I've trying to remove the cam disc, to check how it is attached and possible to replace it, but can't manage it. Do you have any tips on removing this cam disc? I'm not sure which is the PCN number for my machine but here are some of the numbers inside the door. Type: P6296154 Prod No: 914634051 00 Thanx Franny