Notice: Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons alone in order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could result.

Notice: It is important to note that damage to either the tire mounting surface or the wheel mounting holes can result from the use of improper wheel attachment or tire mounting techniques. It takes 70 seconds for all the air to completely exhaust from a large tire. Failure to follow proper procedures could cause the tire changer to put enough force on the tire to bend the wheel at the mounting surface. Such damage may result in vibration and/or shimmy and under severe usage lead to cracking.

Follow the tire changing machine manufacturer's instructions in order to properly separate the tire from the wheel.

1. Clean the tire bead area.
2. Clean the rim bead seats with a wire brush or coarse steel wool in order to remove lubricants, old rubber, and light rust.
3. Apply an approved tire lubricant to the tire bead area.
4. Attach the tire to the wheel.

•	Use a tire changing machine.

•	Follow the equipment manufacturer's instructions.

Caution: To avoid serious personal injury, do not stand over tire when inflating. The bead may break when the bead snaps over the safety hump. Do not exceed 275 kPa (40 psi) pressure when inflating any tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads, deflate, relubricate the beads and reinflate. Overinflation may cause the bead to break and cause serious personal injury.

5. Install a valve core. Inflate the tire to the specified pressure on the certification label.

•	The locating rings on each side of the tire must show above the rim flanges.

•	Position the rings in direct relation to the wheel, not off-center as compared to the rim.

6. Check the bead seating. Mount and inflate the tires in accordance with the safety precautions included with the tire mounting equipment.

Notice: Failure to follow radial tire inflation procedures can cause bead deformation in both tube and tubeless tires due to incorrect bead seating.

Tubeless Tire Mounting Procedure

Notice: The use of tubes in tubeless tires is not a recommended repair due to the fact that speed ratings are greatly reduced.

Important: Only use rims approved for radial tire usage by the rim manufacturer.

1. Clean the rim. Remove all rust and foreign material.

Notice: Do not use silicone base lubricants--this could cause the tire to slip on the wheel.

2. Lubricate the tire beads and the rim bead seats with an approved rubber lubricant.
3. Inflate the tire to the recommended pressure.

•	Because of the construction of radial truck tires, particularly in the lower sidewall and bead area, difficulty may occur in getting the tire to take air.

•	An inflation aid may be necessary in order to help seat the bead of radial tubeless tires. The following are two types of inflation aids commercially available:

-	Metal rings that use compressed air to seat the beads.

-	Rubber rings that seal between the tire bead and the rim bead seat, allowing the bead to move out and seat.

-	Lubrication is necessary with both aids.

Important: 

•	In order to prevent bead deformation, follow this procedure to insure proper bead seating.

•	Mount and inflate radial and bias tires in accordance with safety precautions noted in RMA Radial and Bias Truck Tire Service Manuals.

4. Check the spacing between the rim flange and one of the three rings of the lower sidewall rim line, while the tire is laying flat, in order to verify bead seating.

•	Measure each 90 degrees around the circumference of the rim flange.

•	If the spacing is uneven around the bead from side to side, repeat Steps 1 through 3, then recheck.