Toro ProLine 22166, Руководство оператора

Страница: 17 / 24

17
13. Install the air cleaner elements and ensure that they are
properly positioned.
14. Securely install the cover with the 2 wing bolts.
Maintaining the Blade
Always mow with a sharp blade. A sharp blade cuts
cleanly and without tearing or shredding the grass blades.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Fig. 7).
3. Drain the gasoline from the fuel tank.
4. Tip the lawn mower onto its left side (air cleaner up)
(Fig. 18).
757
1
2
3
Figure 18
1. Blade
2. Bolt and lock washer
3. Accelerator
Inspecting the Blade
Carefully examine the blade for sharpness and wear,
especially where the flat and the curved parts meet
(Fig. 19A). Because sand and abrasive material can wear
away the metal that connects the flat and curved parts of
the blade, check the blade before using the lawn mower. If
you notice a slot or wear (Figs. 19B and 19C), replace the
blade; refer to Removing the Blade on page 17.
270
1
1
1
2
3
4
A
B
C
Figure 19
1. Sail
2. Flat part of blade
3. Wear
4. Slot formed
Note: For the best performance, install a new blade before
the cutting season begins. During the year, file down any
small nicks to maintain the cutting edge.
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
1. Grasp the end of the blade using a rag or a thickly
padded glove.
2. Remove the blade bolt, the lockwasher, the
accelerator, and the blade (Fig. 18).
Sharpening the Blade
File the top side of the blade to maintain its original
cutting angle (Fig. 20A) and inner cutting edge radius
(Fig. 20B). The blade will remain balanced if you remove
the same amount of material from both cutting edges.
153
1
m4783
2
A B
Figure 20
1. Sharpen at this angle only 2. Maintain the original
radius here
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. 21).
1007
Figure 21
Note: You can also check the balance using a
commercially manufactured blade balancer.