Hunter GSP9712 - Forcematching Using Previous Bare Rim Measurement; Forcematching Using Previous Road Force Measurement

GSP9700 Series Road Force Measurement System Operation 4. Balancing a Wheel  63
Use a tire changer and align the tire and rim marks to one another. Refer to
the operation instructions for the tire changer in your shop.
NOTE: If the wheel assembly can be corrected by ForceMatching,
the results can be viewed prior to removing the assembly
from the balancer by selecting “Show After ForceMatching”
from the “Balance” primary screen.
If the wheel assembly cannot be corrected by ForceMatching, the diagnosis
box will display “ForceMatching will not bring assembly within limits” and may
suggest component replacement. Refer to “Diagnosis Explanation Screen,”
page 95.
ForceMatching™ is complete.
ForceMatching™ Using Previous Bare Rim Measurement
If bare rim measurements (refer to “Rim Runout Measurement (Bare Rim),” page 56)
have been taken and will be used for ForceMatching™ procedures, it will be
necessary to scribe two aligning marks with a marker or chalk on the hub/shaft
assembly and the rim. This will allow you to align the rim and hub/shaft assembly
back together after mounting the tire on the rim. After spinning with the tire mounted
and the load roller enabled, press “Apply Last Rim Data” from “Balance” primary
screen. This will recall the bare rim runout data from the previous rim measurement.
ForceMatching™ Using Previous Road Force™ Measurement
This procedure should be used if a bare rim measurement will be taken for rim runout
data after the Road Force™ Measurement has been obtained, such as when the rim
runout data cannot be measured from the outside surface of the rim and the Road
Force™ Measurement has exceeded the limit.
With chalk or a marker, draw two aligning marks on the hub/shaft assembly and the
rim.
Mark the tire at the location of the valve stem and label the line “VS.”
Remove the assembly from the balancer.
Remove the tire from the rim and remount the bare rim onto the balancer, being
careful to realign the rim and hub/shaft assembly marks.
Take the bare rim measurement. Refer to “Rim Runout Measurement (Bare Rim),”
page 56.
Press “Apply Last Tire Data” to recall the previous Road Force Measurement.
Mark the rim at the high spot of tire road force and label the mark “FV.”
Mark the rim at the low spot of rim runout and label the mark “RR.”