Diesel engine: The tension of the individual poly V-belts is checked by pressing with the thumb.
Increased belt tension leads to its rapid wear and failure. With increased tension, bearings in the corresponding units may be damaged.
Checking the status
Pay attention to the following damages:
Traces of oil and grease.
Wear of side surfaces: edges become sharper (B); the new ribs should be trapezoidal in shape.
The cord threads at the base of the ribs are visible, which is determined by the lighter areas (C).
Transverse cracks (D) on the back of the belt.
Some ribs are peeling off (E).
Notches on the outer ribs (F).
The warp threads (G) emerge from the sides.
Transverse cracks (H) on several ribs.
Missing rib sections (J).
Cracks on individual ribs (K).
Dirt and foreign objects between the ribs.
Bulging of rubber at the base of the ribs.
If such defects are detected during a visual inspection, the poly V-belt must be replaced.
Original version of the article on the website mazbook