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25
MAINTENANCE
MAINTENANCE SCHEDULE
Perform these required maintenance procedures at the frequency stated in the table. These procedures
should also be a part of any seasonal tune-up.
NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these
procedures, take the unit to an authorized service dealer. Refer to the Service / Warranty
Supplement for more information.
NOTE: Maintenance, replacement, or repair of the emission control devices and system may be
performed by an authorized service dealer. Refer to the Service / Warranty Supplement for more
information.
NOTE: Please read the California/EPA statement that came with the unit for a complete listing of
terms and coverage for the emissions control devices, such as the spark arrestor, muer,
carburetor, etc.
WARNING: To avoid serious personal injury, always stop the engine and allow it to cool
before cleaning or maintaining the unit. Never perform cleaning or maintenance while the
unit is running. Disconnect the spark plug wire to prevent the unit from starting accidentally.
WARNING: Wear protective clothing and observe all safety instructions to prevent
serious personal injury.
FREQUENCY MAINTENANCE REQUIRED
Every 10 hours • Clean and re-oil the air lter. Refer to Maintaining the Air Filter.
Every 25 hours • Check the spark plug condition and gap. Refer to Maintaining the
Spark Plug.
REPLACING THE TRIMMING LINE
Refer to the Line Replacement Addendum for complete instructions.
MAINTAINING THE AIR FILTER
Failure to maintain the air lter can result in poor performance or can cause permanent damage to the
engine. Engine failure due to improper air lter maintenance is not covered by the product warranty.
Cleaning the Air Filter
1. Open the air lter cover: Hook your ngers behind the cover tab. To unlock the air lter cover, pull it
to the left and away from the engine. This may require a rm pull. Swing the air lter cover to the
right (Fig. 18).
2. Remove the air lter from inside the air lter cover (Fig. 18).
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