window reapair kit off side

[warwicks]

HI all, have 06 peugeot partner van

driverside window has become stuck won't wind in any direction

have purchased a repair kit !

but am havind great difficulty stripping the winding mechanism down
it seems like a sealed unit, but the fact that the repair kit has a new spool ( to conect the cables to !) must mean that the winding mechanism does come appart

all help greatly appreciated.