IC Bus Gasoline CE Series, Руководство по эксплуатации и обслуживанию

Страница: 177 / 241

Maintenance Instructions
• 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 at the
end of this 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 at the end
of this 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
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
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.
Rear Axle – Inspection and Lubrication
Make sure the axle mounting U-bolt nuts, and attaching or
mounting bolts and nuts are securely tightened.
Loose or
misaligned rear axles will affect vehicle alignment, front tire
wear, and handling. Refer to
Axle U-bolt Nut Torque Chart at
the end of this section for torque specifications.
163