Compressor Drive Unit
Compressor Drive Unit
• If drive plate overload protection activates, check compressor for ease of motion before replacing the drive unit. If compressor creates friction, replace it completely.
1 - Compressor Drive Unit
• Check, driveshaft must be seated free of play in splines of engine drive wheel with thread tightened => [ Compressor Drive Shaft ] Compressor Drive Shaft.
• Tightening specification 60 Nm
• Loosening and tightening => [ Compressor Drive Shaft, Loosening and Tightening ] Compressor Drive Shaft, Loosening and Tightening
• Removing and installing => [ Compressor Drive Shaft ] Compressor Drive Shaft
• Lubricate the splines to the engine drive wheel with grease (G 000 100).
2 - Hex Head Bolt
• Tightening specification 10 Nm
3 - Drive Plate
• With overload safeguard, triggers when torque is too-high (e.g. compressor produces friction) and driveshaft runs freely without driving the compressor.
• Run-out, checking and adjusting => [ Drive Plate with Overload Protection, Checking Run-Out and Adjusting ] Adjustments.
• Removing and installing => [ Drive Plate with Overload Protection ] Drive Plate with Overload Protection
4 - Drive Plate
• Attached to compressor input shaft
• With overload safeguard, triggers when torque is too-high (e.g. compressor produces friction) and driveshaft runs freely without driving the compressor.
• Tightening specification 30 Nm
• Removing and installing => [ Drive Plate, from Compressor ] Drive Plate, from Compressor
5 - Rubber Element
• Decouples drive unit, dampens vibrations and noises.
• When installing, coat rubber element lightly e.g. using soapy water (as sliding compound).
• Removing and installing => [ Drive Plate, from Compressor ] Drive Plate, from Compressor
6 - Spacer
• The original disc must be installed
• Dimensions: 17.5 x 10 x 3 mm
7 - Circlip
• Replace
• Install on proper side (level side to compressor)
• Removing and installing => [ Drive Plate with Roller Bearing ] Drive Plate with Roller Bearing
8 - Drive Plate
• With roller bearing.
• Removing and installing => [ Drive Plate with Roller Bearing ] Drive Plate with Roller Bearing
• Clean compressor flange before sliding on drive plate.
9 - Compressor
• Different versions may be installed, depending on engine version and country version of vehicle.