The air conditioner compressor is driven by a poly V-belt. The drive belt tension is automatic.
Attention! Before removing the belt, mark its rotation direction with a marker in the form of an arrow if you plan to reuse it. Put the belt back in place only according to the marking.
If contaminated with hydraulic fluid, coolant or oil, the drive belt must be replaced.
The V-belt drive is changed under the following circumstances:
- contamination with coolant and oil;
- the appearance of belt slipping noise due to its oiling or stretching (elongation);
- the formation of cracks and brittleness;
- breakage of the frame and individual strands;
- fraying and wear of the side surfaces.
To replace the air conditioner compressor drive belt with a hydraulic tensioner, perform the following procedure: Remove the tensioner protective cover. Loosen the compressor drive belt tension by inserting a hex key into the bolt on the tension roller (dark arrow, Fig. 3.168, a).
Slowly turning the key clockwise (light arrow), press the hydraulic tensioner away from the belt and remove the compressor drive belt.
When installing the belt, press the tensioner all the way to the right and install the new belt according to its routing diagram. Make sure that the belt fits tightly into the grooves (grooves) of the pulleys.
When executed with a mechanical tensioner (fig. 3.168, b) the tension roller should be relieved by turning the socket wrench in the internal hexagon (dark arrow). Remove the air conditioning drive belt.
When installing the drive belt, the roller will automatically set the required tension force. The tension force is not adjusted by the roller. Check the correct position of the belt on the pulleys.