TIRE MAINTENANCE MANUAL - Goodyear Off-The-Road (OTR)
TIRE MAINTENANCE MANUAL - Goodyear Off-The-Road (OTR)
TIRE MAINTENANCE MANUAL - Goodyear Off-The-Road (OTR)
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Both tube-type and tubeless tires can be repaired.<br />
Regular inspection can detect repairable<br />
injuries before they become<br />
serious. Immediate attention may prevent<br />
extensive or costly damage.<br />
Tread and sidewall cuts are a major source<br />
of off-the-road tire trouble. Tires should be<br />
checked at the start of each shift and during<br />
regular inflation checks. Cuts which<br />
extend to or into the belts or cord body<br />
must be repaired. <strong>The</strong> tire must be taken<br />
off for repair.<br />
Shallow cuts in the tread can be treated<br />
without dismounting tires. Small rocks and<br />
dirt will get into these shallow cuts. If neglected,<br />
the rocks will gradually be pounded<br />
or drilled through the cord body.<br />
Fig. 23 Deep tread rock cut – If left unattended<br />
will cause cut separation or cut through.<br />
Fig. 25. Skiving reveals close-up of rock cut<br />
damage into working belt.<br />
Repairs<br />
21<br />
Clean out cuts with an awl to remove any<br />
lodged in or embedded material. Use a<br />
sharp, small blade knife to cut a coneshaped<br />
cavity. <strong>The</strong> cavity should extend to<br />
the bottom of the injury. Sides of the cavity<br />
should slant enough to prevent stones<br />
from wedging. Tires with cuts treated in<br />
this manner may continue in service and<br />
cut growth should be reduced.<br />
All small cuts should be repaired when tires<br />
are removed for major cut repairs. Tires<br />
with very high hours (greater than 10,000)<br />
are not good repair candidates.<br />
Tire repair may be possible, but may not be<br />
economical in older tires. <strong>The</strong> cost of the<br />
repair must be justified by the remaining<br />
service life.<br />
Fig 24. Deep tread rock cut – If left unattended<br />
will cause tread rock cut separation.