COATS 1250 Series Balancer - Manual (Page 20)

14 • Important: Always read and follow the information box instructions.
Mounting Wheel on Spindle
Shaft
Avoid back injury, seek assistance when lift-
ing heavy tire/rim assemblies onto the bal-
ancer shaft.
Select the most appropriate mounting method for the
wheel you are balancing. Using the proper method
ensures secure mounting and safe balancer operation,
and prevents damage to the wheel.
On most wheels, the inner side of the wheel hub
usually has the most uniform surface for wheel bal-
ancing. Always center the wheel by the most uniform
shaped side of the hub to achieve the most accurate
balance.
Regardless of mounting type, always make sure that
the wheel is forced firmly against the shaft faceplate
and that the hub nut engages the threaded shaft for at
least four complete turns. To assist in centering the
wheel properly, rotate the wheel and the shaft while
tightening the hub nut.
Standard Back Cone Mounting
Most original equipment and steel wheels can be
mounted properly using this method. The wheel is
centered on a cone from the inner side of the hub.
1. Place the cone spring onto the shaft with the large
end towards the faceplate.
2. Select the cone that best fits the center hole in the
wheel. Slide the cone onto the shaft with the large end
towards the cone spring.
3. Lift the wheel onto the shaft and center it on the
cone.
4. Attach the pressure cup to the hub nut and install
the assembly onto the shaft. Tighten securely.
Figure 17 - Back Cone Mounting
CAUTION
Cone
Spring Hub Nut and
Pressure Cup
Cone
Protective
Ring
Shaft