Replacing the belt pulley together with the magnetic clutch "N₂5"
Note: If the pulley overload protection has been triggered, check the compressor for ease of movement before replacing it. If the air conditioner compressor moves with difficulty, replace it as an assembly. The compressor does not need to be removed from the engine to remove the belt pulley. Depending on the engine version, it may be necessary to remove the panel from the car and move it slightly forward (to free up some space). Depending on the compressor type and engine model, different pulley models may be installed (different diameters). As a spare part, you can get a belt pulley with a magnetic clutch by the part number. The belt pulley and the driven disk are fastened with a bolt (the bolt is not needed and is disposed of). During manufacturing, a prescribed amount of a certain lubricant is introduced into the thread of the driven disk through this bolt; this volume of lubricant is sufficient for a single installation of the driven disk on the compressor shaft (therefore, the removed slave disk cannot be reused).
1. Cap. Not always installed
2. Clutch slave disk. Replace. Secured to the air conditioning compressor drive shaft. Clean the mating surfaces of the clutch disk and belt pulley before tightening. Clean the threads of the compressor shaft before tightening the clutch disk. After tightening, measure and, if necessary, adjust the gap between the belt pulley and the clutch disk. The threads of the new clutch disk are already lubricated with the prescribed amount of a certain grease during production. Various designs. Overload protection is triggered if the torque is too high (eg, difficult operation of the compressor), and the pulley rotates freely without transmitting torque to the compressor when the magnetic clutch "N₂5" is engaged. To remove, hold the compressor shaft "C" and turn the clutch shaft with a suitable tool in the direction of the arrow (counterclockwise); as described for the driven disk for the air conditioning compressor without magnetic clutch. Tightening torque 30 N·m
3. Disk
4. Distance washer. For adjusting the gap size between the friction disc and the belt pulley
5. Retaining ring. Replace. Install correctly (flat side to compressor). When installing the retaining ring, make sure that the ring is not bent more than necessary. Insert the retaining ring with the correct side, the side with the bevel "A" facing away from the compressor (the flat side faces the compressor)
6. Belt pulley. The belt pulley is not resistant to impacts, so
mu it should be handled with care. Before installing the pulley, clean the compressor flange. Different designs (for example, depending on the engine type). If the belt pulley cannot be removed from the air conditioning compressor flange manually
7. Retaining ring. Replace. Install correctly (flat side to compressor). When installing the retaining ring, make sure that the ring is not bent more than necessary. Insert the retaining ring with the correct side, the side with the bevel "A" facing away from the compressor (the flat side faces the compressor)
8. Electromagnet coil. When installed
novke ensure that the cable holder "B" is correctly positioned. Depending on the version, plug "D" can be secured to the holder on the air conditioning compressor
9. Compressor climate, installation. Depending on the engine model and export versions of the car, different models can be installed. Before installing the pulley, clean the compressor flange. Clean the compressor shaft thread and lightly lubricate it