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Tire Pressurization
Overpressurization
Do not overpressurize tires. In addition to the potential danger
of bursting the tire, overpressurization will cause “crowning”
(extreme tread wear at the center of the tire) and possible
splitting of the carcass upon impacting curbs, potholes, etc.
Once the material has cured, there is no way to correct this
problem. If a tire becomes overpressurized during the filling
process, close the manifold valve and open drain valve. Pressure
inside the tire will force the flatproofing material out through
the drain valve. Close the drain valve and check pressure again
(photo 17a).
Underpressurization
Do not underpressurize the tire. This can cause excessive flexing
of the casing and material, which may lead to overheating and
eventual tire failure. Unlike a tire filled with air, virtually a complete
loss of pressure can result from the leakage of only a very small
amount of material from the tire after it is filled. If leakage is
observed, the tire may need to be repressurized and resealed.
Repressurization
Voids or air pockets are created when uncured material escapes
from a newly flatproofed tire. Once the flatproofing material
has cured, a tire with voids can be repressurized by injecting
additional material through the sidewall. Contact the Accella Tire
Fill Systems Technical Department prior to sidewall injection.
Clean-Up Procedures
Proper shutdown and cleaning of the pump and equipment is
vital. When you have finished processing tires, the equipment
must immediately be cleaned of all reactive materials. If left in
the machine, they will cure, become insoluble, and clog the
equipment.
1. Open the hand valve over a waste container until the pistons are in the down position (photo
17b). This allows the piston rods to be submerged in the throat seal lubricant. Then close the
manifold hand valve.
2. Turn off the air supply to the air motor by closing the ball valve at the regulator.
3. Open the manifold valve to release the pressure inside the cylinders and hoses. Close the
manifold valve when the pressure on the cylinders is zero (photo 17c).
17a
17b
17c
