Dual Wheel and Tire

Wheel and Tire - Dual Wheel and Tire

Removal

1. WARNING: Use only the integral two-piece swiveling lug nuts. Do not attempt to use cone-shaped one-piece lug nuts on these vehicles. If used, cone shaped one-piece lug nuts can come loose in vehicle operation. Do not attempt to use past model wheels, which have cone-shaped wheel hub bolt nut seats, on this vehicle. Do not attempt to use present design wheels and lug nuts on past model wheel hubs. Attempted use of intermixed wheels can lead to damage to the wheel mounting system and could result in wheels coming loose.

Remove the wheel cover, if so equipped.

2. CAUTION: Do not use heat to loosen a seized lug nut. Heat can damage the wheel and wheel bearings.

Note: Do not remove the lug nuts at this time.

With the weight of the vehicle still on the tires, loosen the lug nuts.
3. Raise and support the vehicle.
4. Remove the lug nuts.
5. Remove the outer wheel and tire assembly.
6. Remove the inner wheel and tire assembly.

Installation

1. CAUTION: On the motorhome chassis, it is imperative that the stamped indents located on the tire bead portion of the wheels are placed as close to 180 degrees from each other while still allowing access to the valve stem on the inside wheel. Failure to properly install the wheel and tire assemblies can result in a vibration condition.

CAUTION: Do not apply motor oil to the wheel nut threads or the wheel stud threads.

Install the inner and outer wheel and tire assemblies.
1 Position the inner wheel and tire assembly onto the axle.
2 Note the location of the alignment mark.
3 Position the outer wheel and tire assembly.
4 Position the alignment mark on the outer wheel and tire assembly as close to 180 degrees away from the alignment mark on the inner wheel and tire assembly.
5 The valve stem on the inner wheel and tire assembly must be aligned with one of the five hand holes in the outer wheel and tire assembly.
6 Install the lug nuts hand-tight. Do not tighten the lug nuts to specification at this time.










2. Lower the vehicle.

3. CAUTION: Failure to tighten the lug nuts in the sequence shown can result in high wheel and tire runout, which will speed up the development of brake roughness, shudder and vibration.

With the weight of the vehicle on the tires, tighten the lug nuts to specification in the sequence shown.






4. Install the wheel cover, if so equipped.
5. Advise the customer that the lug nuts need to be retightened at 800 km (500 miles) after wheel change or any other time the lug nuts have been loosened. This is required to permit the wheel clamping system to seat properly so that the lug nuts will hold a uniform clamp load and remain fully tightened.