3.6. Lubrication and Maintenance Operations
Replace the safety element (3) from the lter shell and check •
it.
Replace the safety element always following three replace-•
ments of the main element.
When safety element is damaged, please
replace it with the new one of identical
type as per identication!
Replace instantly a damaged vacuum
valve!
Clean lter’s inner space in such a way to avoid dust penetra-•
tion into the inner feed piping to the engine.
Take o the air lter vacuum valve, clean it and reinstall.•
NEVER use compressed air to clean the
inner space.