GSP9700 Series Road Force Measurement System Operation 4. Balancing a Wheel 79
4.9 Motor Drive/Servo-Stop
The programmable DC motor drive on the GSP9700 is able to position and hold the
tire assembly in position for weight application, apply different amounts of torque, and
control the speed and direction of the spindle.
If Servo-Stop is enabled, when the “Start” button is pushed with the hood in the
raised position, while weights are showing, the motor will automatically rotate the
wheel to the next weight plane and hold the assembly in position for weight or
ForceMatching Mark application.
Servo-Stop can be enabled or disabled from the “Set Up” primary screen. Refer to
“Setting Up the Servo-Stop/Servo-Push,” page 107.
4.10 Spindle-Lok
®
Feature
Depressing the foot pedal will lock the spindle. Locking the spindle will stabilize the
wheel for attaching weights at precise locations if automatic weight positioning is
disabled, and will allow for tightening and loosening of the wing nut. Do not use the
Spindle-Lok
®
as a brake to stop a spinning wheel.
NOTE: Depressing the foot pedal will cancel Servo-Stop.
CAUTION: Using the Spindle-Lok
®
to stop a spinning wheel may result
in personal injury or damage to the balancer.
4.11 Hood Autostart Feature
The balancer can be set to automatically spin the wheel upon hood closure. After a
spin, the hood must be lifted completely before the balancer will Autostart again.
For safety, the balancer will not Autostart in “Calibration,” “Setup,” “Diagnostics,” if no
balancing procedure is selected, or if the Inflation Station hose is out of its “home
position.”
The hood close Autostart feature can be enabled or disabled in the “Setup”
procedure. Refer to “Setting Up the Hood Autostart Feature,” page 107.
4.12 Loose Hub Detect Feature
When the GSP9700 senses that the wheel is loose, it will automatically stop the spin.
You should tighten the wing nut before proceeding.
NOTE: If the wing nut appears to be tight, remove the wing nut and
then clean and lubricate the spindle threads. Refer to
“Spindle Hub Face and Shaft Maintenance,” page 129.