Hour Maintenance - Shindaiwa AH254 Owner's/Operator's Manual

Maintenance (continued)

10-Hour maintenance

(more frequently in dusty condi-
tions)
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 "Specifi-
cations" 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.
14
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
Lubricate cutter assembly and gearcase
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)
A
Gearcase
grease fitting
Prefilter
spark plug gap--all models