WHEELS, RIMS AND TIRES
There is an etching or pitting on contact surfaces of cup,
cone or rollers (Figure 30).
Figure 30.
There is any spalling or flaking on either the bearing cup
and/or cone surfaces (Figure 31).
Figure 31.
LUBRICATION
Wheel bearings will either be grease or oil lubricated.
Refer to the LUBRICATION Section for type of lubricant
to use.
Always use a wheel dolly to place wheel(s) on spindle or
axle tube. Care must be taken so that the seal is not
damaged, especially when positioned over the end of the
spindle or axle (Figure 32).
Figure 32.
GREASE LUBRICATED
1.
Pressure lubricate inner and outer bearing
assemblies, so that grease is forced between the
cone and cage until grease is expelled between
the cage and rollers (Figure 33).
Figure 33.
2.
Apply grease to wheel or hub cavity so that it is
even with inside diameter of bearing cups.
3.
Assemble bearings and seal and adjust bearings
as directed elsewhere in this section.
4.
When bearing maintenance is performed on rear
drive axle bearings, the procedures in oil
lubricated bearings can be used. It is important
that the rear axle lube level be inspected since
that lube also aids in lubricating the bearings.
CTS-4148A
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