The compressor drive torque is transmitted to the compressor shaft through the bolted connection of the clutch disc -C- on the compressor shaft. If, during operation of the air conditioning compressor, the clutch disc -B- is screwed so tightly onto the compressor shaft that it cannot be removed (a 7-A hex key may not transmit the required tightening torque), the compressor needs to be replaced.
Checking the gap between the belt pulley and the clutch disc
Note. The gap must be within the acceptable range around the entire perimeter of the disk. The gap size can also be measured with the air conditioning compressor installed. If the gap is outside the permissible range, remove the clutch disc and adjust the gap by removing or installing spacers.
Turn off the ignition. Perform preparatory work when replacing the belt pulley. The clutch disc -C- is tightened to the required tightening torque (30 Nm) on the shaft of the air conditioning compressor -E-. Using template -F- measure distance "1" between the belt pulley -B- and the clutch disc -C- at 3 points around the perimeter of the clutch disc -C- (record measured value). Apply 12 V voltage to the first connector -A-. Apply weight to compressor housing -D-.
Using template -F- measure distance "2" between the belt pulley -B- and the clutch disc -C- at 3 points around the perimeter of the clutch disc -C- (record measured value). Calculate the gap based on the measured values (dimensions "1" and 2"). Specified gap value: 0.4...0.6 mm (up to 0.8 mm for used magnetic coupling).
Visitor comments