Press the lift control handle “down” until the carriage is at its lowest level.
Roll wheel assembly from carriage.
3.2 Mounting the Wheel on the Balancer Spindle
CAUTION: Use only cones and accessories that are specifically
designed for the GSP9720JLR.
Since today’s vehicle designs are lighter and more sensitive to road feel, it is critical
to achieve the best balance. Proper balance requires that the tire/wheel assembly be
centered on the balancer. Tire/wheel assemblies can be balanced to zero, even with
the tire/wheel assembly mounted off-center. The main objective of the balancer
operator is to center the wheel on the hub and shaft, using the best available method.
Mounting the wheel off-center creates incorrect measurements of imbalance and
runout conditions.
Remove any existing wheel weights, rocks, and debris from the tire tread, and clean
the center hole of the wheel. Inspect inside of wheel for excessive accumulation of
dirt and debris. Remove if necessary before balancing.
Accurate balancing depends on accurately centering the wheel. Choose the proper
wheel mounting cone by placing it in the center hole of the wheel to be balanced.
NOTE: If the basic cone and adaptors do not fit the wheel, additional
centering adaptors will be necessary. A wheel that cannot be
properly centered, cannot be properly balanced. All
balancers require additional centering adaptors to properly
center certain types of wheels. For additonal information,
refer to Form 3203T for optional accessories.
Installing the Wheel
With the safety hood open, place the wheel mounting cone on the spindle shaft
against the captivated spring. Position the wheel with the inside surface facing the
balancer, centered on the cone.
Install the plastic clamping cup and wing nut on the spindle shaft against the wheel
and secure the entire assembly by firmly tightening the wing nut.
Depress and hold down the Spindle-Lok® foot pedal while tightening the wing nut.
Holding the shaft locked while tightening the wing nut improves centering accuracy.
Slowly roll the wheel towards you while tightening the wing nut. This improves
accurate wheel centering, since the wheel is allowed to roll up the taper of the cone
as opposed to forcing it to slide up the cone.
Installing the Wheel Using Quick-Thread® Wheel Clamping
WARNING: Keep clear of clamping components during Quick-
Thread shaft rotation.
Lift the wheel assembly onto the shaft as normal without threading on the wing nut.
GSP9720JLR Wheel Balancer Operation Instructions Balancing Procedures
25
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