11
Maintenance
Note: Determine the left and right sides of the machine from the normal operating position.
Recommended Maintenance Schedule
Maintenance Service
Interval
Maintenance Procedure
Initially • Check for loose fasteners and tighten them if necessary.
Annually
• Check the scraper and replace it if necessary. Refer to Replacing the Scraper on
page 11.
• Inspect the rotor blades and replace it if necessary. Refer to Replacing the Rotor
Blades on page 12.
• Inspect the drive belt and replace if necessary. Refer to Replacing the Drive Belt
on page 13.
• Drain the fuel and run the engine until the fuel tank and the carburetor are dry.
Refer to Emptying the Fuel Tank on page 14.
• Check for loose fasteners and tighten them if necessary.
100 Hours • Replace the spark plug. Refer to Replacing the Spark Plug on page 14.
Important Refer to your engine operator’s manual for additional maintenance procedures.
Caution
If you leave the wire on the spark plug, someone could start the engine accidentally and seriously
injure you or other bystanders.
Disconnect the wire from the spark plug before you do any maintenance. Set the wire aside so
that it does not accidentally contact the spark plug.
Replacing the Scraper
Before each season, inspect the scraper for wear. If the
thickness from the top of the wear indicator groove to the
bottom of the scraper is less than 1/16 inch (1.6 mm) or
there is no longer a wear indicator groove, replace the
scraper (Fig. 7).
1
2
923
3
Figure 7
1. Scraper
2. Wear indicator groove
3. Screw (3)
1. Stop the engine and wait for all moving parts to stop.
2. Remove the key from the switch.
3. Disconnect the wire from the spark plug. Refer to steps
3 through 5 of Replacing the Spark Plug on page 14.
4. Remove the three screws that hold the old scraper in
place (Fig. 7).
5. Remove the old scraper.
6. Secure the new scraper to the housing with the three
screws.
7. Connect the wire to the spark plug.
8. Install the control panel.
9. Insert the key in the switch.
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