Hunter GSP9200 Touch, Operation Instructions Manual

Page: 35 / 88

BALANCING PROCEDURES 27
Install the clamping cup and wing nut / Auto-Clamp™ on
the spindle shaft against the wheel and secure the entire
assembly as previously described.
RIM
COLLET
CAPTIVATED
SPRING
PLASTIC
CLAMPING
CUP
SPINDLE
SHAFT
WING
NUT
COLLET
CONTACTING
RIM BORE
Figure 87.
CAPTIVATED
SPRING PLATE
SPINDLE
SHAFT
COLLET
CLAMPING
CUP
STANDARD
STEEL RIM
WING
NUT
Figure 88.
Using The Plastic Wheel Mounting Spacer
The plastic wheel mounting spacer, 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 collet sizes. Use of the washer as shown below
can improve centering ability by increasing cone pressure
against the wheel.
For example: One collet size is too small because the
captivated spring is not pressing the collet against the
inner wheel opening, but the next larger collet size is too
big and will not fit the opening. Use the smaller collet
size with the plastic wheel mounting washer to “extend”
the captivated spring to hold the collet against the wheel
opening with greater pressure. The scratch guard may be
installed on the clamping cup to protect alloy rims from
being marred, but should not be used on steel wheels.
3.4 Front / Back Collet Mounting
Collet mounting is one of the most common and reliable
ways to mount wheels on balancers.
The Bullseye™ Centering System is a set of collets that
provides wheel centering coverage for most passenger
cars and light trucks. Due to the degree of taper on
the collets, multiple collets may be used on a wheel
assembly. As long as the collet is in the center bore of the
wheel, and does not bottom out, it can be used. To verify,
always perform a centering check.
Select the proper Bullseye Centering System™collet by
placing it in the center bore of the wheel to be balanced.
Select the collet that contacts the wheel nearest the
center of the collet.
COLLET
SIDE CUT-AWAY
VIEW OF RIM
SPINDLE
SHAFT
Figure 85.
When using a collet, make sure that only the
sloping surface contacts the center wheel bore.
If the face of collet “bottoms out” on the interior
surface of the rim, choose a different collet.
COLLET
SIDE CUT-AWAY
VIEW OF RIM
SPINDLE
SHAFT
COLLET
BOTTOMING OUT
ON INTERIOR
SURFACE
Figure 86.
Place the wheel collet on the spindle shaft against the
spring plate. Mount the wheel with the inner rim facing
the balancer and centered on the collet.
Use only the wing nut or Auto-Clamp™ supplied
with the balancer.