Toro 30716, Руководство оператора

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21
Removing the Cutter Blade
The blade must be replaced if a solid object is hit, the blade
is out-of-balance, or if the blade is bent. Always use
genuine Toro replacement blades to be sure of safety and
optimum performance. Never use replacement blades made
by other manufacturers because they could be dangerous.
1. Raise the cutting unit to the highest position, shut the
engine off, and engage the parking brake. Block the
cutting unit to prevent it from accidentally falling.
2. Grasp the end of the blade using a rag or thickly padded
glove. Remove the blade bolt, lock washer, anti-scalp
cup, and blade from the spindle shaft (Fig. 26).
1
2
3
Figure 26
1. Blade bolt
2. Lock washer
3. Anti-scalp cup
3. Install the blade—sail facing toward the cutting
unit—with the anti-scalp cup, lock washer, and blade
bolt. Tighten the blade bolt to 85–110 ft.-lb.
(115–149 N
⋅
m).
Do not try to straighten a blade that is bent, and
never weld a broken or cracked blade. Always use
a new blade to ensure continued safety
certification of the product.
Warning
Inspecting and Sharpening the
Blade
1. Raise the cutting unit to the highest position, shut the
engine off, and engage the parking brake. Block the
cutting unit to prevent it from accidentally falling.
2. Examine the cutting ends of the blade carefully,
especially where the flat and curved parts of the blade
meet (Fig. 27-A). Since 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
machine. If wear is noticed (Fig. 27-B), replace the
blade; refer to Removing the Cutter Blade, page 21.
Figure 27
Danger
If the blade is allowed to wear, a slot will form
between the sail and flat part of the blade
(Fig. 27-C). Eventually a piece of the blade may
break off and be thrown from under the housing,
possibly resulting in serious injury to you or
bystanders.
Do not allow the blade to wear.
3. Inspect the cutting edges of all of the blades. Sharpen
the cutting edges if they are dull or nicked. Sharpen
only the top of the cutting edge and maintain the
original cutting angle to make sure of sharpness
(Fig. 28). The blade will remain balanced if the same
amount of metal is removed from both cutting edges.