Centering Light-Truck Wheels; Wheel Mounting Requiring Special Tooling; Mode Selection - Snap-On EEWB330B Mode D'emploi

!
FAILURE TO TIGHTEN WING NUT SECURELY
MAY RESULT IN SERIOUS PERSONAL INJURY.
DO NOT USE A HAMMER TO TIGHTEN THE
QUICK NUT.
TO RELEASE THE QUICK NUT, UNSCREW A
FEW TURNS TO REDUCE THE AXIAL PRES-
SURE, THEN PRESS THE UNLOCK LEVER AND
SLIDE AWAY FROM THE SHAFT.
5. Check that the wheel rotates true by turning the wheel
several revolutions while noting any excessive runout.
4.2.2 CENTERING LIGHT-TRUCK
WHEELS
An optional offset spacer may be required for some
light truck wheels and reverse-offset wheels that must
be moved away from the balancer mounting fl ange.
The extension adaptor is often used with the 5-1/4 inch
diameter light truck cone. (p/n EEWB-5)
Install the spacer on the mounting fl ange, then mount
the wheel, using the front cone method (Figure 12)
Figure 12
4.2.3 WHEEL MOUNTING REQUIRING
SPECIAL TOOLING
Clad wheels (Figure 13): A Clad Wheel is a wheel casting
that is balanced but the wheel face is not fi nished. To
fi nish the wheel face a plastic chromed face is bonded
to the casting.
Figure 13
A clad wheel must be centered properly from the back
side of the wheel using a precision collet instead of a
centering cone. A precision collet is normally a dual
sided centering device with low tapers on each side
and has a length of approximately 1.5 inches.
The benefi t of a precision collet is it fi ts very precisely
into the tapered machining on the back side of a cast
wheel and the collet does not protrude into the wheel
center. A cone also offers precision centering, but a
cone can have a length from the long to short end of
the taper of two inches or more. A taper cone unlike a
precision collet, will intrude into the wheel center.
On many clad wheels there are plastic tabs to hold the
cosmetic cover in place. It is also necessary to use a
pin plate in the front of the wheel. The standard pres-
sure cup may crack the plastic cladding.
A centering cone can break off the tabs. See section
1.6 Optional Accessories for tooling recommendations.

4.3 MODE SELECTION

The majority of balancing takes place in the default
2-plane dynamic mode which is displayed as "2 PL"
(location 1). Hammer-on clip weights will be placed
on both inside and outside of the rim edge. If required,
select an optional weight placement mode by pressing
the Mode button until the appropriate placement mode
is displayed.
EEWB330B 13