Ride On Mower won't collect grass

Hi,



I recently bought a second hand Partner p13592rb ride on mower. It is in perfect working order but for only one problem... it won't collect the grass. I know thta it is supposed to collect the grass because it has the collection basket. I have connected everything correctly,collection chute, basket ect... but it still will not collect the grass. I think this machine is very close to the Husqvarna range, if anyone has any experience with these?



Any help/advice would be greatly apprecieated.



Cheers