3.11. Check of a condition of ridge belts of the streaming drive of auxiliary units

Scheme of laying of belts of the streaming drive of auxiliary units

1 — the Tension roller
2 — the Crankshaft
3 — the air conditioner Compressor
4 — the Water pump

5 — the Generator
6 — the Roller
7 — the Hydraulic booster of a belt
8 — the Roller



1. The tension of a ridge belt is made automatically. It is necessary to check periodically a condition of a belt, and at detection of defects, to replace a belt.
2. The tension of a belt is carried out by an automatic natyazhitel and does not need check.
3. Switch off the engine, establish transmission in neutral situation. Lift and install the car on supports.
4. Mark chalk a belt on well foreground.
5. A head turn the engine for a pulley of a bent shaft in the direction of rotation, i.e. to the right side so that cretaceous marking was visible. At the same time the site behind the site see a belt.
6. Fingers (and using a small lamp if it is necessary) walk on all length of a belt, feeling on existence of cracks and stratifications. Also check whether is not present on a belt of attritions and sites, zapolirovanny to gloss. The belt has to be examined on both sides that means need of its twisting for check of a condition of inner side. Be in passing convinced of lack of a rust, cracks and agnails on pulleys. On a working surface of a belt existence of superficial perpendicular cracks is allowed. If these cracks do not overstep the bounds of one edge and not really deep, to replace a belt there is no need.

Wear of edges of edges of a ridge belt

Cross cracks of D from a reverse side of a belt and peeling of edges E ridge belts

Razlokhmachivaniye of side edges of F, crack of N and peeling of side edges of G

Separation of edges of J, K crack

7. The tension of a belt is checked by strong pressing for it by a thumb and definitions of degree of its deflection. Measure the size of a deflection by a ruler. If the distance between centers of pulleys makes from 180 to 280 mm, then the size of a deflection has to equal 6 mm. If the distance between centers of pulleys is in limits between 300 and 400 mm, the deflection has to be 13 mm.
8. In the presence of one or several of the specified damages maple the belt needs to be replaced with new.

9. Correctly place a belt on pulleys. Even short-term work of incorrectly established belt can lead to its damage.