User's Manual

18 • 3. Compensating Sensors DSP500 Series Wheel Alignment Sensors
RED LED
COMPENSATE
INDICATOR
GREEN LED
POSITION
INDICATOR
COMPENSATION
BUTTON
Hand-tighten the sensor lock knob.
Rotate the wheel until the sensor is level (as indicated by the spirit level on top of the sensor).
Press the compensate button. Do not disturb the sensor until one red LED begins to blink
and the green LED turns off, indicating that the measurements have been stored.
Loosen the sensor lock knob and rotate the wheel 120°, left or right, until the green LED
turns on. Hand tighten the sensor lock knob and rotate the wheel to level the sensor.
NOTE: It is recommended that the front wheels of front wheel drive
vehicles be rotated in the forward direction to keep from
disturbing the sensor on the opposite front wheel.
With the green compensate LED on, press the compensate button. Do not disturb the
sensor until the red LED begins to blink faster and the green compensate LED turns off
to indicate that the measurements have been stored.
Loosen the sensor lock knob and rotate the wheel 120° more, until the green LED turns
on. Hand tighten the sensor lock knob and rotate the wheel to level the sensor.
With the green LED on, press the compensate button. Do not disturb the sensor. Wait for
the sensor to save the measurement. The red LED and the green LED will stay on.
Loosen the sensor lock knob.
The sensor is now compensated. Repeat this procedure for the remaining sensor(s).
NOTE: All sensors should be level, but unlocked, with cables hanging
straight down (if being used) to minimize tilt of the sensors.
Avoid rapid steering motion that may cause sensors to swing
vertically, which can cause them to come into contact with the
rack, or even dislodge from the wheel.
Remove the lock pins from the turning angle gauges and rear slip plates.
Apply the parking brake and place the transmission in park if applicable.
Lower the vehicle onto the turning angle gauges.
Jounce the vehicle.
3-Point compensation is complete. The green LED and red LED on each sensor will be
on.
After 3-point compensation, the wheel may be rotated to any position without affecting
the alignment measurements.
Continue the alignment procedure.