MAHLE RTI Laser 4 - Manual (Page 15)

Page 15
INSTALL WHEEL CLAMPS
Install Wheel Clamps on each wheel. (See Fig. 6)
Adjust the four bars in each clamp for the best fit to
the wheel rim. Two sets of notches on one end or a
threaded pin on the other end provide for inside or
outside mounting to the wheel rim. Use double-sided
foam tape at contact points on decorative or soft metal
rims. Make sure that the Wheel Clamps are securely
attached.
Select the configuration which gives the most secure
fit with the least amount of pressure on the wheel rim.
COMPENSATING WHEEL RUNOUT (Laser 4)
Wheel Clamps must be adjusted to compensate for
wheel runout. This adjustment is made using the three
Runout Adjusting Knobs.
1) Raise wheel and tire from turning gauge or rear
wheel slip plate. Turn wheel so the large wheel
clamping knob is at the top (12 o’clock position).
2) Mount the Electronic Gauge on the Wheel Clamp
as shown (See Fig.7). Center the magnet on the
Wheel Runout Compensating Adapter. Turn the
Electronic Gauge so it is level.
3) Set the selector to CASTER (See Fig. 8).
4) Rotate the wheel so the wheel clamp adjusting
knob is at the 2 o’clock position. Turn the
Electronic gauge so it is once again level. Note
the value on the Digital Readout Screen. Ignore
the + or - which appears before the numbers.
Repeat at the 4, 6, 8, and 10 o’clock positions.
Re-level the Electronic gauge at each position.
5) Turn the wheel to the position where the largest
numeric reading was observed. Turn the Runout
Adjusting Knobs to decrease this reading by one-
half. Press the Zero Button and repeat step 4,
checking for the largest numeric reading at each
of the six positions.
6) The wheel clamp is properly adjusted when the
Electronic Gauge reads within 0.1 at all six
positions.
COMPENSATING WHEEL RUNOUT