Checking the condition of the poly V-belt

The tension of the V-ribbed belt with ribs is automatic. It is necessary to periodically check the condition of the belt, and if defects are found, replace the belt.

Wear of the edges of the ribs of the V-ribbed belt

Transverse cracks (D) on the reverse side of the belt and detachment of ribs (E) V-ribbed belt

End edge fraying (F), cracks (H) and detachment of the lateral transverse ribs (G)

Destruction of individual ribs (J) and cracks in some ribs (TO)

The V-ribbed belt may have the following defects:

• traces of oil and grease;
• wear of the edges of the ribs. This may be due to the fact that the ribs (IN) during rotation, they fall on the protrusions of the pulley, while the belt ribs have a trapezoidal shape. The stretching phase is visually noticeable at the bases of the ribs (WITH), especially in the light area, see fig. Wear of the edges of the ribs of the V-ribbed belt;
• hardening of the edges of the ribs, vitreous edges;
• transverse cracks (D) on the back of the belt, see fig. Transverse cracks (D) on the reverse side of the belt and detachment of ribs (E) poly V-belt;
• detachment of individual ribs (E), see fig. Transverse cracks (D) on the reverse side of the belt and detachment of ribs (E) V-ribbed belt);
• end edge fraying (D) belt, see fig. End edge fraying (F), cracks (H) and detachment of the lateral transverse ribs (G);
• end edge fraying (F), see fig. End edge fraying (F), cracks (H) and detachment of lateral transverse ribs (G);
• detachment of lateral ribs (G), see fig. End edge fraying (F), cracks (H) and detachment of lateral transverse ribs (G);
• transverse cracks in some ribs (H), see fig. End edge fraying (F), cracks (H) and detachment of the lateral transverse ribs (G);
• destruction of individual ribs (J), see fig. Destruction of individual ribs (J) and cracks in some ribs (TO);
• cracks in some ribs (TO), see fig. Destruction of individual ribs (J) and cracks in some ribs (TO);
• the presence of dirt and stones between the ribs;
• rubber outgrowths at the bases of the ribs.

Order of execution

1. Place the shift lever in neutral position.


2. Remove the lower engine mudguard.

3. Mark the belt with chalk.



4. For the pulley bolt (2), turn the crankshaft clockwise until the mark appears, while visually checking the condition of the belt (1).

5. If any of the defects are present, replace the belt.

6. Install the lower engine mudguard.