COATS 6200HS Truck Wheel Balancer - Manual (Page 26)

20
Coats Model 6200HS
Back Cone Mounting without Pressure
Drum
Ensure the handle does not contact the cone, or the
wheel will not be centered and mounted securely. Attach
the spacer ring to the hub nut if this situation occurs.
On some extended-center wheels with
small hub diameters, the pressure drum
cannot contact the front face of the wheel
properly. Such wheels can be mounted
using the standard back cone method
without a pressure drum. Check that the
handle contacts the wheel center evenly
and that the wheel is centered on the cone.
Double Cone Mounting
The cones must not touch each other. If the cones
touch, the wheel will not be centered and mounted
securely.
Double cone mounting can be used for
some specialty wheels, such as those on
a Porsche 928. The back cone centers on
the formed part of the wheel, and the front
cone centers on the hole
.