2. Remove the snap ring.
3. Remove the servo switch.
4. Loosen the lock nut.
5. Hold the servo piston from rotating with a special key (09454-33000), with a torque wrench (09454-33100) tighten the adjusting bolt to 10 Nm. Loosen and tighten the adjusting bolt twice, and then finally tighten it to 5 Nm. Loosen the bolt again by 2-2.25 turns.
6. While holding the servo piston from rotating with a special key, tighten the lock nut to the required torque.
- Lock nut: 25-32 Nm.
7. After installing the new O-ring into the groove around the servo switch, straighten the O-ring so that it is not twisted. Install the servo switch into the housing, then install the snap ring.
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