20
4
Mounting Alcoa wheels with
4
Tubeless Tires
Recommendations for
mounting
tubeless tires
4-1
WARNING Use of inner tubes in tubeless wheels will hide slow leaks. Slow leaks may indicate
cracked (see Section 3-10, 3-11) or damaged wheels which lead to wheel failures.
Wheel failures can cause accidents which may result in serious injury or death.
Never use an inner tube on an Alcoa tubeless wheel.
Immediately and permanently
remove cracked or damaged wheels from service.
WARNING
WARNING
Damaged tires or wheels can lead to an explosive separation
of tires and wheels.
Explosive separation can cause serious injury or death.
Inspect tires and wheels for damage before removing from vehicle. If damage is found,
the tire must be completely deflated before loosening cap nuts. Immediately and
permanently remove damaged tires or wheels from service.
WARNING
NOTICE: For complete
information on tube type
wheels, contact Alcoa at (800)
242-9898.
NOTICE: Alcoa aluminum non-
symetrical wheels require special
tire mounting techniques, see
Section 4-3.
1. Do not gouge or nick the wheel. Place aluminum wheels on clean wooden floor or rubber mat
when hand mounting tires. Additional care should be used when mounting Alcoa Dura-Bright
®
surface
treated wheels since minor nicks and scratches cannot be polished out (see Section 3-15, pages 19 for
specific cautions, care and maintenance procedures). Disc Mate wheel spacers are recommended for use
with Alcoa Dura-Bright
®
surface treated wheels to protect the wheel contact surfaces from marring.
2. Always use a rubber, leather-faced or plastic mallet.
3. Inspect the wheel for damage. Do not use a damaged or severely corroded wheel (see Section 3).
4. Clean the wheel face with mild detergent and the tire bead seat areas with a wire brush. Be sure the
wheel is dry before applying tire lubricant.
5. Inspect the tire for damage. Be sure the inside of the tire is dry before it is mounted.
6. Use of a non-water-based lubricant is recommended as a rim surface protectant and tire mounting
lubricant. Coat the entire rim surface (see Section 4-2).
7. Lubricate the rim and tire bead immediately before mounting the tire. Do not use any lubricant
which contains water. Water-based lubricants can promote corrosion attack on the rim surface. The use
of non-water-based lubricants is especially important when mounting tubeless tires as the air in the tire
is contained by the seal between the bead and tire rim.
8. Never lubricate the rim or tire bead with a flammable solution. This can lead to an explosion during
airing of the tire or in subsequent operation of the vehicle (see Warning on next page).
9. If using a tire mounting/demounting machine on aluminum wheels, care should be taken to prevent
gouging the wheel.
10. Use only dry air for tire inflation. The use of moisture traps in the air compressor feed line is rec-
ommended.
11. Do not overinflate. Use the tire manufacturer’s recommended pressure, but under no circumstances
exceed cold tire pressures listed in Section 2 Specifications of this manual (see page 3).
12. When inflating a tire always use a clip-on air chuck or threaded straight chuck and a remote valve
with pressure gauge.
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