3. Use a block of wood to hold the blade steady.
4. Remove the blade by turning the blade bolt
counterclockwise.
Note: Save all the mounting hardware.
5. Install the new blade using the mounting hardware that
you removed in step 4.
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 under the Machine
Service Interval: After each use
Cleaning under the Machine without a
Washout Port (Model 20835 only)
WARNING
The machine may dislodge material from under the
machine.
• Wear eye protection.
• Stay in the operating position (behind the
handle) when the engine is running.
• Do not allow bystanders in the area.
1. With the engine running on a flat paved surface, spray a
stream of water in front of the right rear wheel
26).
Figure 26
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. Start the engine and run it for a few minutes to dry the
underside of the machine.
Cleaning under the Machine with a
Washout Port (Model 20836 only)
WARNING
The machine may dislodge material from under the
machine.
• Wear eye protection.
• Stay in the operating position (behind the
handle) when the engine is running.
• Do not allow bystanders in the area.
1. Lower the machine to its lowest cutting-height setting;
refer to
2. Move the machine onto a flat paved surface.
3. Attach a garden hose that is connected to a water
supply to the washout port
4. Turn the water on.
(Figure
5. Start the engine and run it until no more clippings
come out from under the machine.
6. Stop the engine.
7. Shut off the water and disconnect the garden hose
from the machine.
8. Start the engine and run it for a few minutes to dry the
underside of the machine.
16
Adjusting the Cutting Height (page
(Figure
Figure 27
9).
27).