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Performing Scheduled Maintenance
It is important to perform maintenance as specified in the
Service Schedule
for proper generator set operation.
Engine oil and oil filter must be changed, and valve
clearance adjusted after the first 25 hours of operation.
Emissions-critical maintenance must be performed as
scheduled in order for the emissions warranty to be valid.
Emissions-critical maintenance consists of servicing the
air filter and spark plugs in accordance with the
Schedule.
Service Schedule
Service
Check enclosure louvers for dirt and debris *
Check lines and connections for fuel or oil leaks
Check engine oil level
Test emergency stop operation
Perform fuel system leak test
Check for water intrusion **
Check battery condition, electrolyte level, and state
of charge
Replace engine oil and oil filter †
Replace engine air filter
Clean; Check gap; Replace spark plugs
Inspect/adjust valve clearance ‡
Inspect/clean sediment trap
Contact the nearest IASD for assistance if necessary.
* Remove any shrubs or tall grasses which have grown within 0.91 m (3 ft) of the intake and discharge louvers on the sides of the enclosure. Clean any debris (dirt,
grass clippings, etc.) which have accumulated inside the enclosure.
** Verify all sources of potential water intrusion such as water sprinklers, roof run-off, rain gutter down spouts, and sump pump discharges are directed away from the
generator set enclosure.
† Change engine oil and filter after the first 25 hours of operation. In cold weather conditions (ambient below 4.4 °C / 40 °F), or if unit is operated continuously in hot
weather conditions (ambient above 29.4 °C / 85 °F), change engine oil and filter every year or 100 hours of operation.
‡ Check/adjust valve clearance after the first 25 hours of operation.
NOTE: Contact an IASD or visit
Owner's Manual for 50 Hz Air-Cooled Generator Sets
Service
Daily If Running Continuously
or Before Each Use
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www.generac.com
for additional information on replacement parts.
The controller will prompt for Schedule A or Schedule B
maintenance to be performed. Schedule A maintenance
consists of the oil, oil filter, and battery check. Schedule B
maintenance includes the oil, oil filter, battery check, air
cleaner, spark plug(s), and valve clearance.
Since most maintenance alerts will occur at the same
time (most have two year intervals), only one will appear
on the control panel display at a time. Once the first alert
is cleared, the next active alert will be displayed.
Schedule A
Every
Every Two Years
Year
or 200 Hours
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Consult local codes and guidelines.
Maintenance
Schedule B
Every Four Years
or 400 Hours
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