Mounting on the truck

Lubricant
Before mounting the wheels, place a light layer of (non-water-based) lubricant between the wheel and hub to minimize corrosion formation between the wheel and the hub. Excessive corrosion formation between wheel and hubs can make it difficult to remove the wheel. Do not lubricate the face of the wheel, the hub, or the brake drum.



Centre-mounting system
Alcoa wheels are designed for hub-centred systems. The wheel is held in place on studs by cap nuts with an integral flat washer. Do not alter the mounting holes or use conical or spherical cap nuts. Such modifications will invalidate the warranty.

Spigot length
For single and dual wheel mounting, the spigots should be in contact with the wheels for at least 3 mm. Longer spigots make mounting easier.

Torque
Always use the correct torque for cap nuts recommended by truck/axle manufacturer. If not mentioned, use 550-660 Nm. Use 9.0-14.6 Nm valves. Check the torque of valves and cap nuts frequently.

Tyre mounting
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