Operator's Manual

13
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 the control cable both initially and after the first hour of operation; adjust it
if necessary. Refer to Adjusting the Control Cable on page 13.
• Check for loose fasteners and tighten them if necessary.
Annually
• Check the control cable and adjust it if necessary. Refer to Adjusting the Control
Cable on page 13.
• Check the scraper and replace it if necessary. Refer to Replacing the Scraper on
page 14.
• Inspect the rotor blades and replace it if necessary. Refer to Replacing the Rotor
Blades on page 14.
• Inspect the drive belt and replace if necessary. Refer to Replacing the Drive Belt
on page 15.
• Drain the fuel and run the engine until the fuel tank and the carburetor are dry.
Refer to Emptying the Fuel Tank on page 17.
• Check for loose fasteners and tighten them if necessary.
100 Hours • Replace the spark plug. Refer to Replacing the Spark Plug on page 16.
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.
Adjusting the Control Cable
Check the control cable for proper adjustment initially,
after the first operating hour, and then annually thereafter.
1. Stop the engine and wait for all moving parts to stop.
2. Remove the key from the switch.
3. Move the control bar back toward the handle to remove
the slack in the cable (Fig. 4).
4. Ensure that a 1/16 to 1/8 in. (2 to 3 mm) gap exists
between the control bar and the handle (Refer to the
inset in Fig. 4). To adjust the cable, go to step 5.
Note: The control cable must have slack when you
disengage the control bar.
5. Unhook the spring end from the top hole in the control
bar bracket (Fig. 4).
6. Slide the spring cover off the spring and the cable
adjuster.
7. Unhook the Z-fitting from the cable adjuster and
position the Z-fitting in the appropriate hole on the
adjuster to obtain a proper gap of 1/16 to 1/8 in. (2 to
3 mm) between the control bar bracket and the handle
(Fig. 5).
8. Install the spring cover over the cable adjuster and the
spring.
9. Hook the spring into the top hole of the control bar
bracket (Fig. 4).
10. Check the adjustment (refer to steps 3 and 4 above).
11. Install the key in the switch.