Maintenance (continued)

10-Hour maintenance

(more frequently in dusty conditions)

1.Remove the air filter cover by loosen- ing the cover screw(s) and lifting.

2.Remove and inspect the pre-filter. If the pre-filter is torn or otherwise damaged, replace it with a new one.

3.Clean the pre-filter with soap and water. Let dry before reinstalling.

4.Inspect the air filter element. If the element is damaged or distorted, replace it with a new one.

5.Tap filter gently on a hard surface to dislodge debris from element or use compressed air from the inside to blow debris out and away from the air filter element.

6.Install the air filter element, pre-fil- ter and cover in the reverse order of removal.

10/15-Hour maintenance

Remove and clean or replace the spark plug.

■■Clean the spark plug. Adjust electrode gap according to the values listed in the ”Specifications” section. If the spark plug must be replaced, use only the type recommended in ”Specifica- tions” or equivalent resistor type spark plug of the correct heat range.

CAUTION!

Before removing the spark plug, clean the area around the plug to prevent dirt and debris from getting into the engine’s internal parts.

Gearcase lubrication

■■Lubricate the cutter assembly gearcase by pumping one or two strokes of lithium-base grease into the grease fitting (A) using a lever- type grease gun.

CAUTION!

Over lubricating can cause the gearcase to operate sluggishly and can cause grease to leak out.

Loosen

fasteners

Prefilter

Filter element

Components of air

Remove the cover offilter the air filter

IMPORTANT!CAUTION!

Direct the air stream at the inside face

of the filter only!Never operate the unit if the air cleaner assembly is damaged or

missing!

Clean the spark plug and check the gap at the electrode.

0.6 mm

Remove and inspect spark plug

A

Lubricate cutter assembly and gearcase

Gearcase

 

grease fitting

16