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Chapter III Operation
Vehicle Dimensions - (Advanced Option)
Vehicle dimensions are useful measurement tools to
diagnose vehicles that may have been involved in a
collision. Setback occurs when one wheel on an axle
is not even with the other. With the
Aligner
dimensional
measurements are automatic, and additional informa-
tion about the vehicle’s frame can be determined. These
measurements are accessed from the Measure toolbar
button on any readings screen.
The results of the vehicle dimensions measurements
are displayed with a visual reference to a vehicle de-
picting wheelbase difference, track width difference,
and front and rear setback. In addition, setback val-
ues are displayed on the
All Readings
screen and are
printed during the alignment results printout. Vehicle
dimensions and setback can be displayed in inches or
millimeters, selectable in the Units setup.
When Vehicle Dimensions Option is selected, you will
be instructed to ensure all wheel clamps are vertical. A
wheel clamp that is not vertical will cause a measure-
ment error. Once all clamps are vertical click OK to
view the Dimensions screen.
Measuring SAI Only Elevated
SAI is measured with +\- 10 degree sweep. The re-
sults of loaded or unloaded (raised) will be similar, but
some variation may occur due to the type of vehicle
suspension. For accurate results follow the on-screen
instructions carefully.
1. Whether measuring SAI on the turntables or el-
evated, it is mandatory to lock the vehicle’s brakes.
Start the car to initiate the power brakes and install
the brake pedal depressor between the seat and
the brake pedal.
2. Follow the on-screen instructions. During the el-
evated measurement, the instruction say to raise
the front wheels using rigid supports. This is typi-
cally done with a jack included with the alignment
lift.
3. The turning sequence is identical to the process
for obtaining steering angles on the turntables.
Summary of Contents for Pro42
Page 1: ...Operators Manual Portable Imaging Alignment Systems with Pro42 ...
Page 2: ...Blank page ...
Page 8: ...Page 8 Table of Contents ...
Page 65: ...NOTES ...