94 5. Balancing Features and Options GSP9700 Series Road Force Measurement System Operation
Tires Not Mounted to Rims
Mount the bare rim on the GSP9700.
Measure rim runout by using the outer dataset arm. Refer to “Rim Runout
Measurements,” page 54.
Position the valve stem at the 12 o’clock position. Press “OK.”
Attach an identifying tag to the valve stem of the rim.
Repeat the procedure for rims 2, 3, and 4.
NOTE: The first rim assembly in a set must be identified as 1, the
second as 2, the third as 3, and the last as 4.
Mount tires onto the rims.
Mount the first tire/wheel assembly onto the GSP9700 with the valve stem at 12
o’clock. Press “OK.”
Check the tire pressure. Inflation Station will automatically inflate or deflate the tire to
the preset air pressure. When the tire pressure is correct, the tire graphic on the
screen will turn green. Refer to “Inflation Station,” page 81.
Measure rim runout by using the inner and outer dataset arms. Refer to “Rim Runout
Measurements,” page 54.
Using a tire crayon or other similar marking device, mark the tire with the same
number (1-4) that is on the identifying tag.
Rotate the tire/wheel assembly so that the mark on the on-screen tire is at the 12
o’clock position. Mark the sidewall of the tire at the 12 o’clock position.
Rotate the tire/wheel assembly so that the mark on the on-screen rim is at the 12
o’clock position. Mark the rim at the 12 o’clock position.
Press “OK.”
Repeat the procedure for the rest of the tire/wheel assemblies.
After repeating this procedure for all four tire/wheel assemblies, the screen will show
which tires should be mounted on which rims to obtain the best results. You may
choose to show tire/wheel matching based on the optimal road force or based on
making fewer tire and rim swaps.
Mount the tires to the rims (using the identifying tags attached to the valve stems and
the numbers marked on the tires), aligning the marks on the sidewalls of the tires with
the marks that were made on the rims.
Mount the matched tire/wheel assemblies on the GSP9700 and verify that the proper
road force was achieved.
Balance each tire/wheel assembly using the appropriate balancing procedure for the
particular type of rim construction. Refer to “Balancing Procedures,” page 35.
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