the location of the drive belt on the pulleys of the auxiliary units of the engine - in Figure 4.124.
Attention! If the drive belt is contaminated with hydraulic fluid, coolant or oil, it must be replaced.
Before removing the drive belt, if you plan to reuse it, you should fix the direction of its rotation in the form of an arrow with a marker.
The alternator drive belt must be replaced in the following order.
Remove the viscous coupling of the fan drive with its impeller (see fig. 4.17) and loosen the tension of the alternator drive belt by slightly loosening the bolts (8 and 9, see fig. 4.123). Remove drive belt.
When installing the belt, make sure that it fits snugly into the grooves (streams) pulleys. Install on hex (20, see fig. 4.123) adjustment plate (7) flip key. Turning the key, move the plate (7) tensioner to the end of the longitudinal groove (21) and tighten the M8 bolts (8 and 9) torque 30 Nm (3.0 kgf·m).
The tension force of the roller is not adjustable, it will automatically set the required tension force of the generator drive belt.