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Check and adjust the tension of V-ribbed belts
|  | 1. Check the V-belt and its location on the pulleys.  | 1. Verify the location of the edges of the V-ribbed belt pulley groove.
2. If the V-ribbed belt makes unusual noise, check the belt for wear and damage, as well as working surfaces of pulleys. Also check belt deflection defining its tension. |
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 | 2. The special device measure a belt tension. In the absence of a special tool, check the belt tension, having pressed on it effort of 100 N in a place located on identical removal from pulleys and measure a belt deflection. |
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Typical values deflection alternator drive belt, mm Check | Adjustment | | New | Second-hand | 7,7-12,3 | 6,3-7,3 | 8,4-10,6 |
Typical values of deflection belt air conditioning compressor and the power steering pump, mm Check | Adjustment | | New | Second-hand | 7,7-12,3 | 6,3-7,3 | 8,4-10,6 | 11,7-15,3 | 8,8-11,0 | 12,5-14,3 |
 | - The belt tension should be measured exactly in the center between the pulleys.
- When a new belt is installed, adjust the tension to the average value given in the column "New".
- Reused belt is considered to be a belt, worked on the engine for more than 5 minutes and the tension must be adjusted to the average value given in column
- When adjusting the tension of a used belt or belt, who worked on the engine for more than 5 minutes it is necessary to adjust the tension to the average value given in the column "Second hand".
- For periodic check-ups should be guided by the column "Test".
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Tension measurement special device type A  | When measuring the tension device wedge a belt must not touch the other components of the engine. |
Tension measurement special device type B | 1. When measuring ensure that the key turned in the direction of re-installation of the arrow, the arrow to set the device to its original state.  | 2. After removing the unit from the belt needle still will indicate the belt tension. |
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