Pressure Plate: Service and Repair

^ "SAC" stands for Self-Adjusting-Clutch
^ When fitting a new clutch plate together with a used SAC pressure plate, the adjuster ring in the pressure plate has to be reset by turning it back as far as it will go. If this is not done, the SAC pressure plate will operate with reduced clamping force, which will cause clutch slip and excessive wear (especially of the clutch plate). This adjustment is only required when fitting a new clutch plate together with a used SAC pressure plate, as above.
^ If the clutch plate is not being replaced, it is not necessary to reset the adjuster ring.
^ New SAC pressure plates are pre-set accordingly, and do not have to be reset.





- Insert 3 securing bolts -A- into the mounting holes on the pressure plate, 120° from each other (1/3 turn), as shown in the illustration.
- Screw 3 nuts -B- (M8) onto the bolts -A- and tighten nuts slightly.





- Place the SAC pressure plate onto the press so that only the 3 bolt heads (arrows) make contact.
- Position special tool 3062 in the center of the pressure plate.





Do not use force when performing the following steps, otherwise the forks on the adjuster ring can break off.
- Apply two screwdrivers to the forks on the adjuster ring. Use the press to compress the pressure plate until it is just possible to move the adjuster ring.
- Using the two screwdrivers, turn back the adjuster ring evenly in the direction of the arrows until it reaches the stop.
- Hold the adjuster ring against the stop and reduce the pressure exerted by the press so that the adjuster ring is held in this position.





Removing and installing clutch with SAC pressure plate

Notes:
^ The adjuster ring in the SAC pressure plate has to be reset before assembly when replacing the clutch plate on its own.
^ Clutch lining and contact surface of pressure plate must make full contact with flywheel before securing bolts are inserted.
^ To avoid damaging centering holes in pressure plate and centering pins on flywheel, tighten securing bolts evenly and in several stages in diagonal sequence.

- Position of clutch plate: spring pack (coil springs) or marking "Getriebeseite" towards pressure plate and transmission.
- Loosen and tighten bolts gradually in diagonal sequence and in several stages to 22 Nm.
- Reverse position of counter-hold tool 10-201 when removing.
- Use mandrel 3176 to center clutch plate.