1 inch. Figure 3.11 shows a single slid flat defect measuring more than 2
1/2 inches; figure 3.12 shows two adjoining slid flat spots each exceeding
the 2-inch limit.
Figure 3.12.
Adjoining Slid Flat
Figure
3.11.
Single Slid Flat
Defects.
Wheel Defect.
d. Broken
rim.
Sometimes
inspectors
condemn
wheels
and
remove them from service when they
detect
chipped
places
on
the
outside edge of the rim; however, a
small amount of chipping does not
impair their serviceability.
The
wheel should not be condemned until
the rim is broken off a distance of
3 3/4 inches from the flange when
the break slopes inwardly.
Figure
3.13 illustrates the methods of
gaging broken rims; the two wheels
shown have reached the condemnable
limit.
e. Cracked plate.
Any wheel
with a cracked plate should be
removed from service. Such a crack
Figure 3.13.
Wheels With Broken
almost always originates in either
Rim Defects.
the hub or the rim. A 2-to
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