Cleaning The Blade Brake Clutch Shield - Toro ProLine Recycler 22045 Operator's Manual

Danger
A worn or damaged blade can break, and a piece
of the blade could be thrown into the operator's
or bystander's area, resulting in serious personal
injury or death.
Inspect the blade periodically for wear or
damage.
Replace a worn or damaged blade.
Removing the Blade
Grasp the end of the blade using a rag or a thickly padded
glove. Remove the blade nuts, the anti-scalp cup, the
accelerator, and the blade (Fig. 25).
Sharpening the Blade
File the top side of the blade to maintain its original
cutting angle (Fig. 27A) and inner cutting edge radius
(Fig. 27B). The blade will remain balanced if you remove
the same amount of material from both cutting edges.
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Figure 27
1. Sharpen at this angle only
Balancing the Blade
1. Check the balance of the blade by placing the center
hole of the blade over a nail or screwdriver shank
clamped horizontally in a vise (Fig. 28).
Figure 28
Note: You can also check the balance using a
commercially manufactured blade balancer.
2. If either end of the blade rotates downward, file that
end (not the cutting edge or the end near the cutting
edge). The blade is properly balanced when neither
end drops.
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2. Maintain the original
radius here
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Installing the Blade
1. Install a sharp, balanced Toro blade, the accelerator,
the anti-scalp cup, and the blade nuts. The sail of the
blade must point toward the top of the lawn mower
housing for proper installation. Torque the blade nuts
to 15 to 27 ft-lb (20 to 37 N m).
Warning
Operating the lawn mower without the
accelerator in place can cause the blade to flex,
bend, or break, resulting in serious injury or
death to the operator or bystanders.
Do not operate the lawn mower without the
accelerator.
2. Return the lawn mower to its upright position.
3. Connect the wire to the spark plug.
Cleaning the Blade Brake
Clutch Shield
Clean the BBC (blade brake clutch) shield at the end of
each mowing season to ensure the best performance and to
prevent parts from degrading. Clean the BBC shield when
you sharpen the blade because you need to remove the
blade in order to remove the BBC shield.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Fig. 22).
3. Drain the gasoline from the fuel tank; refer to
Emptying the Fuel Tank on page 26.
4. Tip the lawn mower on its right side.
Warning
Tipping the lawn mower may cause the fuel to
leak from the carburetor or the fuel tank.
Gasoline is extremely flammable, highly explosive,
and, under certain conditions, can cause personal
injury or property damage.
Avoid fuel spills by running the engine dry or by
removing the gasoline with a hand pump; never
siphon.
5. Remove two blade nuts, the anti-scalp cup, the
accelerator, and the blade (Fig. 25).
6. Loosen the tabs that secure the BBC shield to the deck
by loosening the nuts or the bolts on the tabs (Fig. 29).
Rotate the tabs 180 to move them out of the way.
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