MAHLE RTI Laser 4 - Manual (Page 6)

Page 5
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 Plus)
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 and press the rocker
switch to ON. Press the Zero Button. (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.