Section 13: WHEELS, HUBS & TIRES
PA1553
10
NOTE
It is recommended that all tires on coach be of
the same type.
11.3 WHEEL BALANCING
Before balancing, wheels must be clean and
free from all foreign matter. The tires should be
in good condition and properly mounted. An
unbalanced wheel can be due to a bent wheel or
improper mounting. Before removing the wheel
from the vehicle, check for swaying movement
and if necessary, check the wheel lateral runout
as outlined under heading "Wheel Straightness
Check".
WARNING
When balancing wheel and tire assemblies, it
is strongly recommended to closely follow
instructions covering the operation of wheel
balancer.
CAUTION
A maximum of 16-oz (450 g) of balancing
weight is recommended. If more weight is
necessary, check and correct the cause.
11.4 TIRE ROTATION
Radial tires should be rotated only when
necessary. If the tires are wearing evenly, there
is no need to rotate. If irregular wear becomes
apparent or if the wear rate on the tires is
perceptively different (from axle to axle), then
tires should be rotated in such a manner as to
alleviate the condition.
NOTE
There is no restriction on criss-cross rotation.
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