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Maintenance Intervals and Specifications
SECTION 8 — MAINTENANCE INTERVALS AND SPECIFICATIONS
Lubrication and Maintenance Intervals
All new vehicles are factory-lubricated. Once the vehicle is
in operation, regular lubrication and maintenance intervals
(based on the type of service and road conditions) must be
established and performed. Load weight, vehicle speed, road
conditions, and weather conditions all contribute to lubrication
frequency. Performing thorough lubrication and maintenance
at the specified intervals will ensure an outstanding vehicle life
and will reduce overall operating expense.
The LUBRICATION AND MAINTENANCE INTERVAL CHART
contains an extensive list of components and systems. Listed
items and systems must be regularly inspected, serviced, and
/ or replaced to maximize vehicle availability and minimize
unexpected failures. Recommended synchronized intervals are
shown for each item. This chart can serve as a convenient
one-stop reference to research most maintenance needs.
Only lubricants of superior quality, such as Fleetrite ® lubricants,
should be used. The use of inferior products will reduce the
service life of the vehicle or result in failure of its components.
Navistar, Inc. recommends the use of Fleetrite
® lubricants for
optimum performance.
Maintenance Intervals
Maintenance intervals provided in this manual are for normal
highway and environmental service conditions.
These intervals may be expressed in miles (kilometers), hours
of operation, and / or months of operation. It is important to note
that in high duty cycle types of operation and / or where operating
conditions are extremely severe (such as in deep water, mud or
unusually dusty conditions), the vehicle may require lubrication
much more frequently than specified in this manual.
NOTE: The maintainer is advised refer to the Original
Equipment Component Manufacturer for the most up to
date specific service instructions, required capacities and
lubricating oils.
The maintainer may wish to synchronize engine related
items with other lubrication/maintenance intervals in
order to reduce downtime, even though the recommended
intervals in the Engine Operation and Maintenance Manual
may be longer.
The synchronized “A” and “B” service intervals are designed to
coordinate maintenance activities and to provide the appropriate
levels for servicing components. Following the service intervals
minimizes the number of times per year that the vehicle must
be brought into the shop. In addition to the “A” and “B” service
intervals, the “Special” Service Interval column is provided
for items that need infrequent servicing.
In most cases,
these service intervals represent the recommended maximum
intervals. For some components, however, the manufacturer’s
recommended maintenance intervals may have been shortened
to allow synchronization with other maintenance tasks.
Engine Operation and Maintenance Manual maximum
intervals (based on the actual operating conditions
specified in that manual) must never be exceeded
.
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