Operating Guide

Maintenance
26 Owner’s Manual for 60 Hz Air-Cooled Generators
Service Schedule
NOTE: Contact an IASD or visit www.generac.com for additional information on replacement parts.
Maintenance Log
Battery Inspection and Charge Check
Dates Performed:
Oil, Oil Filter, Air Filter, and Spark Plug Replacement
Dates Performed:
Valve Adjustment
Dates Performed:
Service
Daily If Running Continuously
or Before Each Use
Every
Year
Schedule A
Every Two Years
or 200 Hours
Schedule B
Every Four Years
or 400 Hours
Inspect enclosure louvers for dirt and debris *
●
Inspect lines and connections for fuel or oil leaks
●
Inspect engine oil level
●
Check for water intrusion **
●
Perform fuel system leak test
●
Check battery condition, electrolyte level, and state
of charge
●● ●
Replace engine oil and oil filter †
●●
Replace engine air filter
●
Clean; inspect spark plug gap; replace if necessary
●
Inspect/adjust valve clearance ‡
●
Inspect/clean sediment trap Consult local codes and guidelines.
Contact the nearest IASD for assistance if necessary.
* Remove any shrubs or tall grasses which have grown within 3 ft (0.91 m) of intake and discharge louvers on enclosure sides. Clean any debris (dirt, grass
clippings, etc.) which may have accumulated inside the enclosure.
** Verify all sources of potential water intrusion such as water sprinklers, roof run-off, rain gutter downspouts, and sump pump discharges are directed away from
generator enclosure.
† Change engine oil and filter after the first 25 hours of operation. In cold weather conditions (ambient below 40 °F [4.4 °C]), or if unit is operated continuously in hot
weather conditions (ambient above 85 °F [29.4 °C]), change engine oil and filter every year or 100 hours of operation.
‡ Check/adjust valve clearance after the first 25 hours of operation.