PREVENTIVE MAINTENANCE SCHEDULE PART 8: MAINTENANCE AND SERVICE
– 150 – Y53-6007 (R10/06)
through the bearings when initially filling a hub. Maintain
the differential oil level by adding oil until its surface is
even with the bottom of the filler hole (see
page 144).
Oil-lubricated Nondriven Hubs
Use CD50 synthetic transmission fluid SAE 50W or equiv-
alent. A minimum of 9 oz. (270 ml) of lubricant is required
for proper lubrication of an LMS™ hub; 10 - 13 oz. (295 -
400 ml) is required for a non-LMS hub, depending on
wheel design. Allow time for the fluid to seep through the
bearings when initially filling a hub. When properly filled,
the fluid level will lie between the fluid level line and 1/4”
above the line. (Note: Remember to replace vent plug
when done.)
Grease-Lubricated Hubs
Repack the hub bearing with clean wheel bearing grease
after disassembling, cleaning, and inspecting.
Universal Joint Lubrication
Refer to the Spicer Universal Joints and Driveshafts ser-
vice manual and lubrication specifications.
Steering Gear Lubrication
CAUTION: When adding fluid, be sure to use
fluid of the same type. While many fluids have
the same description and intended purpose,
they should not be mixed due to incompatible
additives. If incompatible (insoluble) fluids
are mixed in a power steering system, air bub
-
bles can be produced at the interface of the
two fluids. This can cause cavitation, which
reduces the lubrication between moving parts
in the gear. This could result in worn compo
-
nents. The mixture of two different fluids,
although harmless to individual internal com
-
ponents, may initiate a chemical reaction that
produces a new compound that will attack
seals and other internal components. Do not
mix different fluids.
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