The ribbed V-belt tension is adjustable via the automatic ribbed V-belt tension roller.
Only the position of the movable tensioner arm (2) of the ribbed V-belt tension roller can be checked. This should lie between the stops (1) and (3).
If the movable tensioner arm (2) of the ribbed V-belt tension roller lies at stop (1), replace the ribbed V-belt and ribbed V-belt tension roller - see operations "Ribbed V-belt, Remove and Install" and "Ribbed V-belt Tension Roller, Remove and Install".
Inspect 