COATS 6450 3D - Manual (Page 20)

14 • Important: Always read and follow the information box instructions.
Mounting Wheel on Spindle Shaft
CAUTION
Avoid back injury, seek assistance when
lifting heavy tire/rim assemblies onto the
balancer shaft.
CAUTION
Hubnut must engage threads for at least
four full turns. Failure to tighten hubnut
securely or to force wheel firmly against
the faceplate may result in serious personal
injury.
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 usu-
ally has the most uniform surface for wheel balancing.
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
Use only small or medium cones.
1.
Place spring over threaded stud with the large end
inside of the faceplate. Spring must be used.
2. Select a cone that best fits into wheel center hole.
Use only small or medium cones. If a larger cone is
required, use the front cone mounting system.
3. Slide selected cone onto threaded shaft with the
large end against the spring.
4. Lift wheel onto shaft and center on cone.
5. Slide pressure drum onto threaded shaft with the
large end against the spring.
6. Thread hubnut on and tighten with hubnut wrench.
If hubnut won’t tighten all the way down, use the front
cone mounting system. The wheel must be forced
firmly against the faceplate.
7. If you still can’t tighten hubnut because of a lack
of threads, use an additional cone to act as a spacer
between the hubnut and pressure drum.
Figure 17 - Back Cone Mounting