Tire Warning

Tube-Type Mounting/Demounting

Any inflated tire mounted on a rim contains explosive energy. The use of damaged, mismatched or improperly assembled tire/rim parts can cause the assembly to burst apart with explosive force. If you are struck by an exploding tire, rim part or air blast, you can be seriously injured or killed.

DEMOUNTING TUBE-TYPE TIRES
  1. If a tire has been running underinflated or if any damage to the tire or wheel is suspected, the valve core should be removed prior to removing the tire/wheel assembly from the vehicle axle. This is to prevent a possible accident.
  2. Before unlocking any side ring or lock ring, remove the valve core and allow the tire to deflate completely.
  3. Remove all rim or wheel parts.
  4. Inspect the tire for damages.

MOUNTING OF TUBE-TYPE TIRES
  1. Insert the proper size tube into the tire and partially inflate (3 psi) to round out the tube (with larger sizes it may be necessary to use bead spreaders - see the next two sections for mounting instructions).
  2. Insert the valve through the flap valve hole. (Make sure the reinforced patch which is directly over the flap valve hole is facing outwards.) Then insert the remainder of the flap into the tire.
  3. Check the flap wings to insure against folding. This is easily accomplished by placing your hand into one tire side, then the other, then running your hand along the entire flap wing.
  4. Inflate the tube until the flap is secure against the tire wall and the beads start to spread apart, making sure not to exceed 3 psi.
  5. Apply a proper tire lubricant to both beads and the exposed flap. Make sure that excess lubricant does not run down into the tire.
  6. Place tire, tube and flap on the wheel or rim, taking care to center the valve in the slot.
  7. Fit side ring and lock ring, insuring that they are properly positioned, locked, and are correct for the "fitment."

MOUNTING OF TUBE-TYPE TIRES USING MANUAL SPREADERS:
  1. Follow steps 1 through 3 of the "mounting of Tube-Type Tires". However, before inserting the flap into the tire, position two bead spreaders in the following manner:
    1. Place the first at a 90° angle to the valve. (Flap is positioned between the spreader and the tube.)
    2. Place the second directly opposite the first.
    3. Spread the beads and insert the flap.
    4. Close the beads, remove spreaders.
  2. Follow steps 4 through 7 of the "Mounting of Tube-Type Tires".

MOUNTING OF TUBE-TYPE TIRES USING AUTOMATIC SREADERS:
  1. Spread the beads.
  2. Inflate the tube to approximately 3 psi.
  3. Insert the tube into the tire.
  4. Insert the valve through the flap hole. (As mentioned, the flap reinforced valve area must face outwards.) Insert the remainder of the flap into the tire.
  5. Close the beads.
  6. Follow steps 4 through7 of the "Mounting of Tube-Type Tires".

INFLATION OF TUBE-TYPE TIRES
  1. An air line with an extension (30" minimum), in-line gauge, and clip-on valve chuck should be used for inflation. Remove valve core and lay the assembly flat on the ground. Using an OSHA approved restraining device, inflate to 5 psi to seat beads. While the tire is still in the restraining device, make sure all rim components are centered and locked properly. If not, the tire must be deflated, broken down, relubricated and reinflated.
  2. Deflate the tire by removing the air line. This is to allow the tube to relax thus eliminating any wrinkles or uneven stretching that may have occurred during primary inflation.
  3. Install the valve core and, using a safety cage or other OSHA approved restraining device, reinflate the tire to the pressure shown on the sidewall in order to insure proper bead seating. Then adjust the tire to the proper operating pressure.
  4. Reinspect the assembly for proper positioning of all components.
  5. Check for leaks and install a metal or hard plastic valve cap.
  6. Do not reinflate any tires that have been run underinflated or flat without careful inspection for damage.
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