While you wait for answers, we may have found some information which could help you.
Click here for Replace Drive Belt
How do I change the belt on my Hayter Harrier 48?
how can I change a clutch cable on a Hayter Harrier 41 307r?
Drive belt?
Hayter 10/30 won't turn over and start?
Clutch on mower?
How can I get my lawnmower to start after it just cut out?