On a per-use basis:
· Clean the exterior surfaces
· Check the throttle lock and throttle trigger
· Clean the filter or replace it, if necessary
· Check all nuts and screws are properly tightened
· Make sure all housings are free of cracks
· Make sure the collection bag is intact and that the zipper works
On a weekly basis:
· Check the condition of the starter device, the starter cord and tensioning spring
· Check that none of the anti-vibration mountings are damaged
· Check the condition of the air intake at the starter device and remove debris if clogged
· Clean the outside of the spark plug. Replace if necessary
· Clean the fan blades and flywheel
· Clean or replace the muffler’s spark arrest screen, except on mufflers with a catalytic converter
· Clean the carburetor space
· Clean the air filter
On a monthly basis:
· Flush the fuel tank with clean gasoline, which should be done in an environmentally correct manner
· Clean the outside of the carburetor and the space around it
· Clean the fan blades on the flywheel and the space around it
· Check the fuel filter and the fuel line and replace if necessary
· Check all the cables and connections
· Change the spark plug
· Check the muffler’s spark arrest screen if it has a catalytic converter – Husqvarna