Generac — Servicing the Engine Air Cleaner
Maintenance
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
Before you start
- The new replacement paper filter must be a flame retardant type.
Parts for this job
- 73123 Air filter — Generac 9592 Amazon eBay $25.00
- 73123 Air filter — Generac Q-55G Amazon eBay $25.00
Part numbers from the service-parts lists for Generac 9592, Generac Q-55G. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Turn KNOB counterclockwise to loosen.
- Remove cover, foam pre-cleaner and paper filter.
- Remove foam pre-cleaner from cover.
- Wash foam pre-cleaner in liquid detergent and water.
- Wrap foam pre-cleaner in a cloth and squeeze dry.
- Saturate foam pre-cleaner in engine oil; squeeze out excess oil.
- Install foam pre-cleaner into cover, followed by paper filter; tabs must lock into slots.
- Insert bottom locking tab of cover into slot; install cover, foam pre-cleaner and paper filter.
Specs & values
- Clean and re-oil foam pre-cleaner every three months or every 25 hours, whichever occurs first
- Replace paper filter once each year or every 100 operating hours, whichever comes first
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.