4
22
Mounting tubeless
tires (continued)
CAUTION The use of liquid tire balancers or sealants in Alcoa wheels may cause extremely rapid
corrosion of the wheel rim surface.
Severely corroded wheels are unsuitable for service. Alcoa wheels corroded by the use of liquid tire
balancers or sealants will not be replaced under the Alcoa limited warranty.
CAUTION
!
Heavy duty truck tires have a “guide rib” molded into the sidewall next to the tire bead. When the tire is inflated this ring should be
evenly spaced from the wheel rim all the way around the wheel. Check the position of the ring before removing the assembly from the
inflation cage. If the ring and wheel are not concentric, deflate the assembly in the cage and remount the tire.
Mounting tires
on non-symmetrical
drop well wheels
4-3
Alcoa wheels often contain a symmetrical drop well with a narrow ledge on both sides of the rim.
This feature allows mounting of the tire from either side of the wheel. However, some Alcoa wheels
are non-symmetrical and contain a narrow ledge on only one side of the wheel. Reduced well wheels
as well as some other wheel designs feature an increased underwell diameter and also have a non-
symmeterical sloping rim profile which provides additional brake clearance.
In order to minimize the possibility of tire bead damage, all mounting and dismounting of the tire
should be performed only from the narrow ledge side of the wheel in accordance with OSHA regula-
tion.
Tires should be mounted/demounted only across the disc side of the wheel.
→
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Mount from this side
Mount from this side
Do not mount from this side
Do not mount from this side