Wheel Balancing - Porsche 928 - WORKSHOP MANUAL 1977 Workshop Manual

928
Wheels, Tires, Alignment
44
Further to 4 a: (Fine balancing of the front wheels)
- Position one or both measuring jacks (see mounting points).
- Set the sensitivity controller to position 5.5 for Hofmann, or 5 for Schenck. Make a measurement
run.
- Fit balance weights ff necessary Then make a check run. If the result is not acceptable
(assuming orderly work), calibrate the finish balancer - adapt the sensitivity controller to the actual
conditions.
- If the balancing result is still not completely acceptable (e.g. 5 g) even after calibration, alter the
balance weight according to the balance correction table and eliminate the residual imbalance.
(Balance correction schematic on the measuring unit in the case of the Schenck RAW 04).
Balance weight Modification of the balance
in section weight
1
2
3 or 5
5 or6
7 or 8
enlarge at the same position
reduce at the same position
place in arrow direction in case
of same size
enlarging and place in arrow
direction
reducing and place in arrow
direction
0 . l \
.5'-
I A.\
0 3
4 a
@
)I
0 7
!W./
. : l /
\
0
Wheel balancing
44- 15
Printed in Germany - XX, 1988