COATS 4070 Tire Changer - Manual (Page 18)

14 • Important: Always read and follow operating instructions.
Performance Tires/Custom Wheels
Before You Begin - Pre-Operation Notes
Only tire technicians with training on custom wheels
should attempt to service expensive custom alloy or
aluminum wheels and high performance low-profile
tires.
• Ensure all weights have been removed from the
wheel before servicing.
• Assistance will be required on wide wheels.
• Use ample lubricant during mounting and demount-
ing operations.
• Always review wheel nicks and/or scratches with the
owner before servicing.
1. Check the clearance on the lower bead loosener
shoe. If it does not clear the rim lip,install the 1/4” shim
(figure 17).
To Install the Shim: Remove the tire/wheel assembly
from the tabletop and depress the foot pedal. The
loosener shoe will extend to the top of it’s stroke. Do
not release the pedal. Tilt the bead loosener shoe away
from the center post and slip the red 1/4” thick shim
over the end of the bolt between the shoe adjusting bar
and the lower shoe.
Figure 17- Installing 1/4” Shim
2. To service wheels over 11” wide, extend the upper
bead loosener post. Remove the clevis pin, raise the
post to the appropriate height,and reinsert the pin
(figure 18).
Figure 18- Extending Upper Bead Loosener Post
3. For mounting and demounting tires on wheels
from 10” to 14” wide, use the optional short center
post extension (part #8108311). Slip the extension over
the center post key (figure 19).
Figure 19- Optional Short Center Post Extension
4. For mounting and demounting tires on wheels
wider than 14” , use the optional center post extension
(part #8108313). Slip the extension over the center post
key (figure 20).
Figure 20 - Optional Long Center Post Extension
5. On wheels with thin or delicate center holes that
may be damaged by the centering cone,use the optional
Speed Mag or Custom Wheeler Adapter (figure 21).
Figure 21 - Optional Speed Mag Adapter