Toro Groundsmaster 4300-D, Руководство оператора

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Inspecting and Sharpening
the Blade
1. Raise the cutting deck to the transport position,
turn the key in the ignition switch to the O
FF
position, and engage the parking brake.
2. Block the cutting deck to prevent it from falling
accidentally.
3. Examine the cutting ends of the blade carefully,
especially where the flat and curved parts of the
blade meet (
Figure 103 ).
Note:
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.
4. If wear is noticed ( Figure 103 ), replace the blade;
refer to Servicing the Blade Plane (page 71) .
DANGER
If the blade is allowed to wear, a slot
will form between the sail and flat part
of the blade (
Figure 103 ). Eventually a
piece of the blade may break off and be
thrown from under the housing, possibly
resulting in serious injury to yourself or
bystanders.
• Inspect the blade periodically for wear
or damage.
• Always replace a worn or damaged
blade.
g006924
Figure 103
1. Cutting edge 3. Wear/slot/crack
2. Sail
5. Inspect the cutting edges of all 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
that it is sharp (
Figure 104 ).
6. If dull or nicked, sharpen only the top cutting
edge while maintaining the original cutting angle
(
Figure 104 ).
Note:
The blade will remain balanced if the
same amount of metal is removed from both
cutting edges.
g006926
Figure 104
1. Sharpen at this angle only
7. To check the blade for being straight and
parallel, lay the blade on a level surface and
check its ends.
Note:
Position the ends of the blade slightly
lower than the center, and the cutting edge lower
than the heel of the blade. This blade produces
a good quality of cut and requires minimal power
from the engine. By contrast a blade that is
higher at the ends than the center, or if cutting
edge is higher than the heel, the blade is bent or
warped and must be replaced.
g276373
Figure 105
1. Cutting edge 2. Heel
8. Install the blade, sail facing toward cutting deck,
with the anti-scalp cup and blade bolt. Torque
the blade bolt to 115 to 149 N∙m (85 to 110 ft-lb).
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