Removing the belt
Loosen the belt tension (not shown in the photo), to do this, loosen the nut 1 and the adjusting bolt 2 and turn the bracket 3 with the tension roller 4 to the engine block
Remove the belt.
Inspect the belt. If it has cracks, rubber delamination, tears, etc., replace the belt.
Installing the belt
Put belt 2 on fan pulley 1, then on crankshaft pulley 4 and tensioner pulley 3.
After installing the belt, it is necessary to adjust its tension.
Belt tension adjustment
Loosen the nut 1 fastening the bracket 3 of the tension roller and the adjusting bolt 2. Turn the bracket 3 with the roller 4 away from the engine block, thereby tightening the belt.
Tighten bolt 2 and check belt tension as above. If the belt tension is normal, tighten the nut 1.
When the tension is properly adjusted, the belt should deflect 7-9 mm when a force of 40 N (4 kgf) is applied midway between the fan pulley and the tension roller.
Belt tension is adjusted by moving the tension roller.