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1. Disconnect the spark-plug wire from the spark plug;
refer to Preparing for Maintenance (page 15).
2. Tip the machine onto the side with the dipstick down.
3. Use a block of wood to hold the blade steady (Figure
45).
4. Remove the blade, saving all mounting hardware
(Figure 45).
5. Install the new blade and all mounting hardware
(Figure 45).
Important: Position the curved ends of the blade
to point toward the machine housing.
6. Use a torque wrench to tighten the blade bolt to 82
N-m (60 ft-lb).
Important: A bolt torqued to 82 N-m (60 ft-lb) is
very tight. While holding the blade with a block
of wood, put your weight behind the ratchet or
wrench and tighten the bolt securely. This bolt is
very difficult to overtighten.
Cleaning the Underside of the
Machine Housing
Service Interval: Before each use or daily
WARNING
The machine may dislodge material from under the
machine housing.
• Wear eye protection.
• Stay in the operating position (behind the
handle).
• Do not allow bystanders in the area.
Figure 45
1. With the engine running on a flat paved surface, spray a
stream of water in front of the right rear wheel (Figure
46).
Note: The water will splash into the path of the blade,
cleaning out the clippings.
2. When no more clippings come out, stop the water and
move the machine to a dry area.
3. Run the engine for a few minutes to dry the housing
to prevent it from rusting.
18
Figure 46
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