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30 Owner’s Manual for Stationary Diesel Generators
5.3 — Service Maintenance Intervals
NOTE: Use only Genuine Generac parts to ensure warranty coverage.
All generator service must be performed by a qualified service person only.
It is important to perform all maintenance at the interval specified in the Service Maintenance Schedule. This
ensures safe and proper operation, as well as compliance with applicable emissions standards. Critical emissions
maintenance must be performed for the Emissions Warranty to remain valid. Service and repairs may be performed by
any qualified service technician or repair shop.
Observe the maintenance tasks and intervals shown in the table below.
NOTE: If the unit reaches a Schedule A or Schedule B maintenance interval with 900 to 999 total hours, have
an authorized service provider perform the Schedule C maintenance tasks as well (and reset the A-B-C/Year
maintenance schedule counter).
Service
30 Hours
Engine Break In
Daily If Running
Continuously
Schedule A
Every
Year or
125 Hours
Schedule B
Every
2 Years or
250 Hours
Schedule C
Every
1000 Hours
Check Fuel Level and Fill
Drain Fuel Filter
Check Fuel Lines and Hoses
Check Coolant Level
Check Coolant Hoses
Check Radiator for Clogging
Check Lubricating Oil Level
Check Battery Condition/Fluid Level
Check/Adjust V-Belt Tension
Replace Air Filter Element
Drain Breather Canister and Replace Filter
Lubricate Governor Rod Linkage
Replace Lubricating Oil and Oil Filter
Replace Fuel Filter Element
Drain/Flush Coolant System
Inspect Fuel Tank
Check/Adjust Fuel Injection Valve
Pressure
Adjust Intake/Exhaust Valve Clearance
Check/Adjust Fuel Injection Pump Timing
Tighten Critical Fasteners
*