IC Bus CE Series 2020, Operation And Maintenance Manual

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Maintenance
Drive Shaft
At the regular lubrication interval, check universal joints, slip
joint, slip joint boot, and carrier bearings for any evidence of wear
or looseness.
Suspension (Air and Steel Springs)
CAUTION
To prevent vehicle and / or engine component
damage, do not adjust air suspension height
to any setting other than the specified setting.
Altering the height setting will change the
driveline angle and may result in unwarrantable
component
damage, such as transmission
component damage.
Periodically verify driveline axle air suspension height and
height control valve performance. Refer to the
Lubrication and
Maintenance Intervals Chart in the Maintenance Intervals
and Specifications section .
Periodically:
• Check condition of spring leaves for evidence of fatigue,
bending or breakage.
• Check condition of suspension mounting brackets and
bushings.
• Check that torque rod mounting fasteners are tight.
NOTE: When retorque is required, ensure the part is in like
new condition. If it can’t be retorqued, then the part needs
to be replaced.
Suspension alignment must be maintained at all times.
Check the U-bolts as follows:
• After the bus has been operating under load for 1,000
miles (1,600 km), retorque the U-bolt nuts.
• Thereafter, retorque the U-bolt nuts every 36,000 miles
(58,000 km).
• Clean and lubricate the U-bolt, nut threads, and seats to
ensure a like new condition when retorquing.
Steering
General
WARNING
To prevent personal injury and / or death, or
damage to property, always follow recommended
procedures for steering system maintenance.
Failure to maintain the steering system in proper
condition can cause reduced steering ability.
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