3.3.11. Maple belt

Belt arrangement

1. The adjusting screw (for a maple belt of a servonasos)
2. A lock nut of 10 N. of m (for the adjusting screw of a servonasos, the moment zatyazhki:25 N. of m)
3. Cooling system pump pulley
4. Сервонасос (amplifier of steering)
5. Generator
6. The compressor (for the conditioner)
7. Intermediate pulley
8. Crankshaft pulley
9. A lock nut, 30 N. of m (for an intermediate pulley)
10. The adjusting screw (for a maple compressor belt of the conditioner)
11. A lock nut, 20 N. of m (for the adjusting screw of the generator, the inhaling moment: 25 N. of m)
12. The adjusting screw (for a maple belt of the generator)

If the former belt is established, then it should be checked for wear and damages. If its sidewalls obtrepatsya, there are cracks and places of gaps, maple the belt should be replaced anyway. At installation of a belt you watch that it correctly adjoined to all pulleys.

Check of a tension of a maple belt

To check a tension of a maple belt always at the cold engine.

1. Press a belt a thumb from above between pulleys (see. "Black tags" on rice. Belt arrangement).
2. Measure the size of breakdown and compare to control value. At the same time press on a belt with a force of 100 N (10 kg). It corresponds to approximately strong pressing by a thumb. If necessary delay a belt a spring dynamometer down.
3. If control value is exceeded, pull a belt.

Replacement of a maple belt

1. Weaken a lock nut.
2. Turn the adjusting screw until the belt can be taken off.
3. Take off maple a belt.
4. Impose a new maple belt and adjust a bolt on a certain value of a tension.
5. Put the lock clamp.

Condition of a maple belt
Being in the use
Maple belt for
Control value
Adjusting value
Adjusting value
The cooling system pump with servonasosy
8 mm
5 – 7 mm
4 – 6 mm
The cooling system pump without servonasos
8 mm
8 mm
6 mm
Conditioner compressor
17 mm
11 – 13 mm
9 – 11 mm
17 mm
10 – 12 mm
8 – 10 mm