Wheels with center holes over 3 9/16 inch diameter require the light truck cone. The
light truck cone can be installed from the outside of the wheel. (When using the light
truck cone, the plastic clamping cup is not used.)
LIGHT
TRUCK CONE
LIGHT TRUCK
WHEEL
CAPTIVATED
SPRING
PLASTIC
CLAMPING
CUP
NOT USED
Using Plastic Wheel Mounting Washer
The plastic wheel mounting washer, 46-320-2, may be used to prevent scratches on
wheels where the standard plastic cup and scratch guard cannot be used.
The plastic wheel mounting washer may also be used when mounting a wheel with a
large offset that is between cone sizes. Use of the washer as shown below can
improve centering ability by increasing cone pressure against the wheel.
For example: One cone size is too small because the captivated spring is not
pressing the cone against the inner wheel opening, but the next larger cone size is
too big and will not fit the opening. Use the smaller cone size with the plastic wheel
mounting washer to “extend” the captivated spring to hold the mounting cone against
the wheel opening with greater pressure. The scratch guard may be installed on the
clamping cup to protect aluminum rims from being marred, but should not be used on
steel wheels.
PLASTIC
WASHER
SPINDLE
SHAFT
PLASTIC
CUP
WING NUT
LARGE OFFSE
WHEEL
MOUNTING
CONE
CAPTIVATED
SPRING
GSP9720JLR Wheel Balancer Operation Instructions Balancing Procedures
31
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