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Mounting Instructions
Tyre mounting
Follow all existing procedures and safety rules shown in Alcoa's Safety & Service Manual available at www.alcoa.com/alcoawheels/north_america/en/service_manual.asp.
The manual gives detailed information on the following topics and others as well:
- Use only the proper tools.
- Use only the appropriate tyre size.
- Do not use a damaged tyre or wheel. Inspect them carefully before mounting.
- Do not use a wheel that has been exposed to excessive heat from tyre fires, brake fires, severe brake system drags or seizures or other causes.
- Do not use a wheel that has been subjected to high pressure tyre & rim separation, run flat, excessive heat, or other physical damage. A wheel subjected to any of these conditions may no longer have sufficient dimensions and contour to retain the tyre bead while under pressure.
- A cracked or damaged wheel may cause the wheel to fail or come off the vehicle while the vehicle is moving.
- Do not straighten the wheels. Do not heat the wheels in an attempt to soften them for straightening or to repair other damage. The special alloy used in these wheels is heattreated, and uncontrolled heating will weaken the wheel.
- Do not weld the wheels for any reason.
- Check if the valve is mounted in the right way.
- Apply ALgrease as a rim protector and tyre-mounting lubricant.
- Ensure that the tyre bead is properly seated.
- Do not over-inflate.
- Use a protective cage during inflation.
Balancing
Since Alcoa wheels are fully machined they do not require balancing. However, the tyre-wheel combination may need corrective weighting. Liquid or powder balancing is not recommended. Preferably use Hofmann balancing weights (see our technical data sheet). For further information a special balancing leaflet is available.
 Download manual (pdf)
Valves
Alcoa wheels come with nickel- or chrome-plated valves installed. Never install brass valves. Brass is not compatible with aluminium and corrosion will result. The Alcoa standard valve should never be bent to another shape. Different valve extensions may be used. If the valve is changed for any reason, apply ALgrease or an equivalent lubricant to the valve hole area and valve seat. The complete valve, including the nut, needs to be replaced if the valve was taken out or loosened. For further information a valve application chart is available.
Mounting on the truck
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