Porsche 928 Workshop Manual page 225

Differential, Transaxle System
39
Checking locking torque (friction coefficient) of transverse lock
Important notes
Check with cold transmission. Parking brake released, no gear engaged.
When checking the locking torque, it is not the rotating torque (starting torque) but rather the
breakaway torque that is measured. For this reason, self-disengaging torque wrenches must be used.
Checking
a
Procedure
I
Execution / Notes
1. Carry out general preparations
according to right-hand column Remove rear wheels
- Fit torque adapter plate (Special Tool 951011) with
original wheel bolts to left-hand rear wheel hub.
- Remove rear M-hand inner wheel arch panel
Prepare self-disengaging torque wrenches (click
wrenches) covering a range of approx. 5 Nm (4 fllb)
to 500 Nm (369 ftlb). To fit them to the torque
adapter plate, suitable reduction pieces or adapters
are required.
a
PSD-Diagnosis / Troubleshooting
D39 - 205
Printed in Germany - XXVII, 1991