Maintenance
•
Kingpin and kingpin bushing lubrication requires that
the vehicle weight is off tires prior to installing grease to
maximize grease distribution.
•
Kingpin thrust bushing lubrication requires that the vehicle
weight is resting on the tires.
•
Power grease guns may be used.
However, a
hand-pumped grease gun should be used for optimal
grease distribution within each component joint.
Refer to the
Lubrication and Maintenance Intervals Chart
and the
Lubricant and Sealer Specifications Chart
in
the
Maintenance Intervals and Specifications
section for
additional information.
•
Inspect, lubricate, and adjust the wheel bearings at
regular intervals. Refer to
Lubrication and Maintenance
Interval Chart
at the end of this section for recommended
service intervals. Also refer to
Lubricant and Sealer
Specifications
and
Torque Specifications
in the
Maintenance Intervals and Specifications
section.
Front Axle – Normal Maintenance
During operation the air and oil inside the hub / wheel cavity
expands. It is normal for a mist of oil to be present on the outside
of the hubcap around the vent slit or hole. Over time, if not wiped
off, this film may collect dust and appear unsightly. If the entire
face and end of the hubcap become wet with oil, investigate
the cause. Refer to the appropriate
Service Manual
for repair
procedure.
Routinely clean the hubcap to ensure that the lube level can
be easily observed through the clear window as intended.
In situations where the window is clean on the outside but
discolored on the inside, check the lube level by removing the
rubber fill / vent plug and insert a finger into the hole.
The specified lube level for clear window type hubcaps is from
the minimum line to 5/16 in (8 mm) above the minimum line.
If the lube level suddenly drops dramatically below the minimum
level, see the appropriate
Service Manual
for diagnostic
procedure.
Front Axle – Alignment
Maintaining front axle alignment is very important to achieve
maximum tire life and vehicle control. Inspecting steer axle tires
in the first 3,000 to 10,000 service miles will generally show if
tires are wearing normally.
•
Rapid outside shoulder wear on both tires indicates too
much toe-in.
•
Rapid inside shoulder wear on both tires indicates too
much toe-out.
•
Excessive wear on the inside or outside of one steer tire
but not the other can indicate a toe-in or toe-out condition
coupled with a misaligned front or rear axle.
•
Pulling to the right or left can indicate misalignment of the
front or rear axle, unequal tire pressures, or a defective /
mismatched tire.
Refer to the
Tires subsection
for additional related information.
193
Summary of Contents for CE Series 2020
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Page 62: ...Instrumentation Declination Zone Map 48 ...
Page 70: ...Instrumentation 56 ...
Page 88: ...Driver Controls 74 ...
Page 138: ...Climate Controls 124 ...
Page 188: ...Roadside Emergencies Body Fuse Circuit Breaker Panel 174 ...
Page 196: ...Roadside Emergencies 182 ...
