Not Promised Vax 602 Pet vacumn cleaner (Ettingshall WV4)

Not Promised Vax 602 Pet vacumn Cleaner . The cleaner works great but I can't get the wheels to stay on and plastic tube bits to attach to hose aren't with it . Its a good hoover but I can not get the wheels to stay on . Someone else probably knows how to do it or need parts for your model . Thanks for reading.