GSP9700 Series Road Force Measurement System Operation 5. Balancing Features and Options 85
NOTE: Heavier wheel assemblies may require extra lifting to
prevent the software limited motor torque control from
stopping the rotation of the spindle.
Tap the foot pedal twice and the spindle will rotate to install the wing nut to save
threading time.
The direction of spindle rotation toggles each time it is used. For normal operation,
spindle rotation will begin in the correct direction for wing nut installation. A single tap
within the first three seconds of rotation will reverse the direction of rotation. A single
tap after the first three seconds of rotation will stop rotation.
Quick-Thread spindle rotation will stop when the clamping components contact the
wheel, or when the foot brake (refer to “Spindle-Lok
®
Feature,” page 79) is applied for
more than half of a second.
CAUTION: Quick-Thread does not tighten the wing nut! In Quick-Thread
rotation, torque allowed is minimal. Therefore, you must still
perform the final tightening of the wing nut.
NOTE: Also because of the software limited torque control, you
must loosen the wing nut before Quick-Thread will remove
it.
Quick-Thread will not operate if:
You are in “Diagnostics,” “Setup,” or all calibration procedures except
“Servo-Stop.”
Either Dataset
®
arm is out of its “home position” while you are in the
“Balance,” “Current Runout & Road Force” or “Measure Rim Runout”
screens.
Inflation Station hose is out of its “home position.”
5.4 Motor Drive/Servo-Stop
The intelligent 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.
5.5 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.
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