I have just purchased a beko washing machine 1600 spinmodel no.WMA 765 S PURCASED FROM EBAY AS A GRADED MACHINE ARRIVED WITH NO TRANSIT BOLTS,WORKED FOR COUPLE OF DAYS THEN WOULD NOT SPIN,TOOK OFF BACK,BELT HAS COME OFF,HOW DO I PUT IT BACK ON,CANT SEE TENSIONER,DOES IT HAVE ONE.HELP!!!!!!