Tire repair, Tire replacement, Tire fundamentals – JLG T500J Operator Manual User Manual
Page 121: Tire wear -17

SECTION 7 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE
3121197
– JLG Lift –
7-17
Tire Repair
The proper repair of a punctured tire requires a plug for the hole and
a patch for the area inside the tire that surrounds the puncture hole.
Punctures through the tread can be repaired if they are not too large,
but tires with punctures to the sidewall must be replaced. Tires must
be removed from the rim to be properly inspected before being
plugged and patched.
Tire Replacement
A replacement tire must be the same size, ply rating and load
range as originally installed on the trailer.
Please refer to the JLG Parts Manual for the part number of the
approved tires for a particular machine model.
Due to size variations between tire brands, both tires on the same
axle should be the same.
Tire Fundamentals
See Figure 7-2. and Figure 7-3.
Tire manufacturers are required to place standardized information
on the sidewall of all tires. This information identifies and describes
the fundamental characteristics of the tire and also provides a tire
identification number for safety standard certification and in case of
a recall.
Table 7-15. Tire Wear
Wear Pattern
Cause
Action
Center Wear
Over Inflation
Adjust Pressure to
value specified in
Section 7
Edge Wear
Under Inflation
Adjust Pressure to
value specified in
Section 7
Cupping
Out of balance
Check bearing
adjustment and bal-
ance tires
Flat Spots
Wheel lockup and
tire
skidding
Avoid sudden stops
when possible and
adjust brakes.