2012 911 Section 3-1 11/3/11 10:18 AM Page 91
911 Carrera 911 Carrera S
3b.4 Gearshift lock for 7th gear A special gearshift lock has been developed to prevent undesired shifting into 7th gear.
Power Transmission
3
1 Fit bolt 2 Closure cap 3 Bush 4 Spring 5 Locking ring
3_14_11
cardiagn.com
6 Actuator shaft
The 7th gear gate can only be selected if the 5th or 6th gear was engaged
Gate 3/4 selected => locking ring is
previously. Downshifting can take place as desired.
decoupled 1 mm from the actuator shaft.
Gate 5/6 selected => actuator shaft Gate 3/4
Gate 5/6
Gate 5/6
Gate 7
selected
selected
selected
selected
pushes the locking ring upwards and blocks gate 7.
5th or 6th gear engaged => actuator
shaft rotates by 29° => locking ring slides back in axial direction and releases gate 7.
5th or 6th gear disengaged => actuator shaft rotates back into neutral 3_15_11
position => locking ring is radially preloaded via torsion spring.
Selecting gate 7 => actuator shaft pushes the locking ring upwards.
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