some under moderately dusty conditions and others
under severely dusty or dirty conditions; each type of
OPERATOR'S DAILY REPORT
operation must be analyzed as the maintenance
schedule is established.
MAKE A DAILY REPORT OF ENGINE OPERATION TO
THE MAINTENANCE DEPARTMENT
Hours of operation, miles (kilometers), or calendar
period as shown on Page 2-2 are convenient units of
The engine must be maintained in top mechanical
measurement, and should be used to set up the
condition if the operator is to get optimum satisfaction
maintenance schedule interval basis. These periods, as
from its use.
stated, are based on average operating conditions.
Engine adjustments, etc., are the work of the
EXTENDING THE MAINTENANCE SCHEDULE
Maintenance Department. However, the Maintenance
Department needs daily running reports from the
Any change in the established maintenance
operator to make necessary adjustments in the time
schedule should be preceded by a complete reanalysis
allotted between runs and to make provisions for more
of the operation. A lubricating oil analysis should be the
extensive maintenance work as the reports indicate the
major factor used in establishing the original
maintenance schedule; it should be studied before
making any change in or extending the schedule
Comparison and intelligent interpretation of the daily
periods. In extremely dirty and under severe operating
report along with a practical follow-up action will
conditions, the scheduled maintenance period may even
eliminate practically all road failures and emergency
need reducing. Again the operation should be re-
analyzed and a lubricating oil analysis should be made.
Extending or reducing the schedule period should be
Report to the Maintenance Department any of the
done only after a complete study; basically, it should be
the same as used in establishing the original
maintenance schedule period.
Low lubricating oil pressure.
USING THE SUGGESTED SCHEDULE CHECK SHEET
Abnormal water or oil temperature.
The maintenance schedule check sheet is designed
Unusual engine noise.
as a guide until adequate experience is obtained to
establish a schedule to meet a specific operation.
Excessive use of coolant, fuel or lubricating oil.
A detailed list of component checks is provided
Any fuel, coolant or lubricating oil leaks.
through several check periods; also a suggested
schedule basis is given for hours of operation, calendar
of time or miles (kilometers) driven.
ENGINE MAINTENANCE SCHEDULE
A maintenance schedule should be established
using the check sheet as a guide; the result will be a
Preventive maintenance performed on schedule is
maintenance program to fit a specific operation.
the easiest, as well as the least expensive type of
maintenance. It permits the Maintenance Department to
The check sheet shown can be reproduced by any
do work on schedule, rather than at inconvenient hours.
printer so the forms may be available for use. The
person making each check can then indicate directly on
Accessories must have a place in the maintenance
the sheet that the operation has been completed. When
schedule the same as the basic engine, for an accessory
a complete column (under A, B, C, etc.) of checks is
failure may put the entire engine out of operation.
indicated, the engine will be ready for additional service
Consult accessory manufacturer for maintenance
until the next check is due.
STORAGE FOR ENGINES OUT OF SERVICE
A GOOD MAINTENANCE SCHEDULE DEPENDS ON
If an engine remains out of service for three or four
weeks (maximum six months) and
Actual operating environment of the engine must
govern the establishment of the maintenance schedule.
Some engines operate under rather clean conditions,