Maintenance
20 Owner’s Manual for Stationary Industrial Generators
4.1.2— Maintenance Schedule
The following pages contain the maintenance schedule describing the checks/tasks which need to be accomplished at
each designated maintenance interval. Some maintenance level tasks are combined. For example, if the 6 month tasks
are due, both the monthly and the 6 month task should be completed at the same time. Similarly, when the annual
tasks are due, the monthly and semi-annual tasks should also be completed. There is space on the sheets for record-
ing the date and signature of the person completing the task, as well as recording the engine hours and other pertinent
information. At the bottom of each sheet, space is also provided to record any fluids added, parts replaced or corrective
action taken. All of this recorded information provides a detailed maintenance history of the unit. This maintenance his-
tory may be required for warranty validation purposes, and is a good idea to maintain throughout the lifetime of the unit.
It is recommended by the manufacturer that service procedures beyond the normal monthly checks be performed by
an Authorized Service Dealer.
4.1.3— Notes and Maintenance Item Explanations
NOTE: Certain applications may require more frequent maintenance checks and more frequent operation
under load.
NOTE: This schedule does not reflect all of the possible requirements of an individual engine manufacturer
service schedule, particularly if the unit is used in other than a standby power application.
NOTE: For more information about service schedules and support for your application, please consult your
local Authorized Service Dealer.
Maintenance Item Description
Oil and Oil Filter Change oil and filter shortly after start up or commissioning of the unit. The recommendation
is that this be done after the first 50 hours of operation or after the first three months of
service. Perform oil and filter changes every 200 hours (or yearly) thereafter. If an oil analysis
program is used (annually), the acceptable oil change interval can be extended to 500 hours
or every 2 years, based on the results of the analysis.
Gearbox Oil (If Equipped) Change gearbox oil every 2 years or 600 hours of operation. Check gearbox oil level monthly
or every 100 hours of operation.
Coolant Quality Check coolant annually for proper thermal protection levels. Drain, flush, and refill the cooling
system with fresh coolant every 2 years regardless of operating hours.
Flexible Hoses Change coolant, fuel (gaseous supply hoses from regulator to mixer), oil, charge air cooling,
and block heater hoses, flexible joints, etc.) every 2 years regardless of operating hours.
Accessory drive belts Replace accessory drive belts every 2 years regardless of operating hours. If necessary,
check and replace automatic tensioner (if used).
Magnetic Pickup(s) mounted on
flywheel housing
Remove, clean, inspect, and reset magnetic pickups to the correct operational output voltage
every 2 years.
Crank and/or Cam Pickup for
ignition system
Visually inspect (outside) for cleanliness and tightness.
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