Filter
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16
Fig. 6-9
Fig. 6-11
Fig. 6-12
Fig. 6-10
Maintenance (continued)
AIR FILTER MAINTENANCE
Cleaning the Air Filter
To avoid serious personal injury, always turn your
trimmer off and allow it to cool before you clean
or do any maintenance on it.
Clean and re-oil the air filter every 10 hours of opera-
tion. It is an important item to maintain. Not maintain-
ing the air filter will VOID the warranty.
1. Remove the carburetor/air filter cover by pushing
on the tab on top of the cover (Fig. 6-9).
2. Remove the air filter (Fig. 6-10).
3. Wash the filter in detergent and water. Rinse the
filter thoroughly and allow it to dry.
4. Apply enough clean SAE 30 motor oil to lightly coat
the filter (Fig. 6-11).
5. Squeeze the filter to spread and remove excess oil
(Fig. 6-11).
6. Reinstall the filter (Fig. 6-10) and air filter cover
(Fig. 6-9).
NOTE: If the unit is operated without the air filter,
you will VOID the warranty.
CARBURETOR ADJUSTMENT
The idle speed of the engine is adjustable by the screw
next to the air filter cover (Fig 6-12).
NOTE: Careless adjustments can seriously damage
your unit. An authorized service dealer should make
carburetor adjustments.
Check Fuel Mixture
Old and/or improperly mixed fuel is usually the reason
for the unit not running properly. Drain and refill the
tank with fresh, properly mixed fuel prior to making any
adjustments. See Section 5, Oil and Fuel.
Clean Air Filter
The condition of the air filter is important to the opera-
tion of the unit. A dirty air filter will restrict air flow and
change the air/fuel mixture. This is often mistaken for
an out of adjustment carburetor. Check the condition of
the air filter before adjusting the idle speed screw. See
Section 6, Maintenance.
Adjust Idle Speed Screw
The cutting attachment may be spinning during
idle speed adjustment. Wear protective clothing
and observe all safety instructions to prevent
serious personal injury.
Carburetor/ Air
Filter Cover
Air Filter
Tab
Idle Speed Screw