Generac — Return the Unit to Service After Storage
Maintenance · Generator
From a Generac owner's manual covering: 9592, GN-570, Q-55G, Q-70G. Check it applies to your exact model before use.
Applies to: Generac 9592, Generac Q-55G, Generac GN-480 engine, Generac GN-570 engine
Procedure
- Check tag on engine for oil viscosity and classification; verify correct oil is used.
- Fill all battery cells to the proper level with distilled water.
- Do not use tap water in the battery.
- Recharge battery to 100% state of charge, or replace if defective.
- Turn off all electrical loads and add gasoline if necessary, then start the engine.
- Let the engine warm up.
- Apply electrical loads to at least 50% of the unit's rated wattage capacity.
- When the engine is thoroughly warmed up, shut it down.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Apply loads to at least 50% of rated wattage capacity
Full service-parts list: Generac 9592 →, Generac Q-55G →
Source: Generac owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.