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Maintenance (continued)
wARnInG!
Always wear gloves when
working around the cutter assembly.
■
Lubricate the blades before use and
after refueling. Check the cutters for
damage or incorrect adjustment.
■
Clean any debris or dirt from the cut-
ting attachment.
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.
■
Check for loose or missing screws or
components. Make sure the cutter
attachment is securely fastened.
■
Check the entire unit for leaking fuel
or grease.
Loosen
fasteners
Remove the cover of
the air filter
IMPORTAnT!
Direct the air stream at the inside face
of the filter only!
Remove and inspect spark plug
■
Make sure nuts, bolts, and screws
(except carburetor idle speed adjust-
ing screws) are tight.
Filter element
Components of air
filter
CAUTIOn!
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
(0.024 in.)
Prefilter
17
spark plug gap-
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