Loosen the fixing bolt of the tensioning roller -A-.
Loosen the V-belt by turning the adjusting screw -B-.
Remove the V-belt from the pulleys.
Apply V-belt.
Tighten the V-belt by turning the adjusting screw.
Set the V-belt tension to the following required values.
Tighten the fixing bolt.
Make a test drive and check the belt tension again.