Group 177
General
Program Structure
This maintenance program has been based on the
progress in vehicle technology and increases in oil qual-
ity to simplify the maintenance.
For simplified scheduling, the program has tied mainte-
nance to logical time or mileage limits that make it easy
to anticipate needed servicing. For the majority of on-
highway operators, the 24,000 km (15,000 miles) or 4
months schedule can be used with little change.
It is important that the scheduled intervals are followed
as limits. Maintenance can be done before either 24,000
km (15,000 miles) have been reached or before 4
months are up but must be made at or before either the
mileage or the time limit has been reached.
For further information concerning component specifica-
tions see service information in Group 1, “Oil and Filter
Change Intervals for Volvo Components, All Models”,
Publication Number 175–001, and any appropriate ven-
dor literature.
Advantages
A well-planned preventive maintenance program offers
the following advantages:
The lowest attainable maintenance cost.
Maximum vehicle uptime.
Better fuel economy.
Reduced road failures; greater dependability.
Increased customer confidence, better public rela-
tions.
Less possibility of accidents due to defective equip-
ment.
Fewer driver complaints.
Regardless of the planning and the details of the mainte-
nance program, the success of the program hinges on
the caliber of workmanship in performing the actual
inspection. A major cause of failure is a “pencil inspec-
tion;” that is, the mechanic checks off each operation as
being OK without making the actual inspection. A “pencil
inspection” defeats the purpose of the inspection, which
is to detect an impending failure.
Maintenance Form
A Service Manual is issued detailing the current inspec-
tion forms. Forms are created for different users but all
with the same references to this document. When the in-
spection point is carried out, check the box if the item is
OK. If further work, such as adjustment, repair, etc.,
needs to be performed, record this information and go
on with the next inspection point. Items noted as being
faulty or in need of adjustment need to be shown to the
customer and scheduled for repair.
There are many time — and/or mileage-based — ser-
vice items that are not listed on the form. Look at the
end of this document for a listing of additional compo-
nents that may need to be serviced, depending on the
mileage or time since last service.
Maintenance Records
It is important to use the inspection form together with
other reports to come up with the best maintenance pro-
gram for a specific application. Use driver’s reports,
complaints, parts usage, repetitive failures, previous re-
pair orders, road failures, etc. to build a maintenance
history.
Records should be collected over the lifetime of the vehi-
cle to form a permanent vehicle record file. The vehicle
file should be used to customize the operational mainte-
nance needs.
The “Driver Inspection Form” is also required by
Federal law. The use of this inspection report makes
the driver a part of the maintenance program and
places direct responsibility on the driver to report
problems that may come up during operation. When
properly used, there should be no excuse for a de-
fective vehicle being in service.
Basic Inspection
Note: The included Basic Service checklist is an
original copy. The document can be updated without
notice.
The Basic inspection is carried out at a maximum of
24,000 km (15,000 miles) or 4 months, whichever comes
first.
All inspection points are to be carried out as verification
of function or condition. Any defects are noted on the in-
spection form for later correction, if so ordered by the
vehicle owner.
Note: The standard repair time for performing the
Basic Service Preventive Maintenance is based on
inspection and Oil and Filter Change, without repair
or adjustment.
Annual Inspection
The Annual inspection is carried out yearly in addition to
a Basic inspection. This inspection is designed to open
up components for inspection or using test equipment to
record performance.
The ideal time to carry out the Annual inspection is right
before the hardest season, which means just before win-
ter in the cold weather climates and just before summer
in the hot weather climates.
For further information refer to “Annual Preventive Ser-
vice Manual”, Publication Number 177–501.
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