impeller blades are breaking picking up leaves and stalks . I also own an old stihl garden vacuum blower /sucker bought in New Zealand more than 10 years ago . I replaced it because the handle has broken making it difficult to hold We never had any trouble with the impeller sucking blade in fact it works better than the new model. Because the blades are now broken the machine vibrates when in use and for that reason probably wont last very long . I use the new vacuum shredder in exactly the same garden , doing exactly the same work as the old model .Can you give me any assistance