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15
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 MTD authorized service dealer.
NOTE:
Maintenance, replacement, or repair of the emission control
devices and system may be performed by an MTD authorized
service dealer.
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, muffler, carburetor, etc.
MAINTENANCE
FREQUENCY
MAINTENANCE REQUIRED
Every 10 hours
(every 5 hours
in vacuum
mode)
•
Clean and re-oil the air filter. Refer to
Maintaining the Air Filter
.
Every 25 hours
•
Check the spark plug condition and gap.
Refer to
Maintaining the Spark Plug
.
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.
MAINTAINING THE AIR FILTER
Failure to maintain the air filter can result in poor performance or
can cause permanent damage to the engine. Engine failure due to
improper air filter maintenance is not covered by the product warranty.
Cleaning the Air Filter
1. Open the air filter cover: press in the lock tab and swing the air
filter cover to the left (Fig. 18).
2. Remove the air filter (Fig. 18).
3. Wash the air filter in detergent and water. Rinse the air filter
thoroughly and allow it to dry.
4. Lightly coat the air filter with clean SAE 30 oil.
5. Squeeze the air filter to spread and remove excess oil.
6. Reinstall the air filter (Fig. 18).
NOTE:
Operating the unit without the air filter and air filter cover will
VOID the warranty.
7. Close the air filter cover: insert the tabs on the air filter cover into
the slots on the backplate. Swing the air filter cover to the right
and press it closed until the lock tab snaps into place (Fig. 18).
Fig. 18
Air Filter
Air Filter Cover
Lock Tab
Backplate
Tabs
Slots