Toro 31970, Руководство оператора, Страница: 22 / 28

3. Grasp the end of the blade using a rag or
thickly-padded glove.
4. Remove the blade bolt, anti-scalp cup, and
blade from the spindle shaft (
Figure 25 ).
g004741
Figure 25
1. Blade bolt 2. Anti-scalp cup
5. Install the blade, anti-scalp cup, and blade bolt
and tighten the blade bolt to 115 to 149 N∙m (85
to 110 ft-lb).
Important:
The curved part of the blade
must be pointing toward the inside of the
cutting unit to ensure proper cutting.
Note:
After striking a foreign object, torque all
spindle-pulley nuts to 115 to 149 N∙m (85 to 110
ft-lb).
Inspecting and Sharpening the
Cutting Unit Blade(s)
Both cutting edges and the sail, which is the turned-up
portion opposite of the cutting edge, contribute to a
good quality of cut.
Maintain sharp blades throughout the cutting season.
Sharp blades create a clean cut without tearing or
shredding the grass blades.
Check the blades for any wear or damage. The sail
lifts the grass up straight, thereby producing an even
cut and gradually wears down during operation.
1. Park the machine on a level surface, raise the
cutting unit to the T
RANSPORT
position, engage
the parking brake, shut off the engine, and
remove the key.
2. Raise the cutting unit to the S
ERVICE
position;
refer to your traction unit Operator’s Manual .
3. Examine the cutting ends of the blade carefully,
especially where the flat and curved parts of the
blade meet (
Figure 26 ).
Note:
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 mower. If you notice wear
(
Figure 26 ), replace the blade.
g004653
Figure 26
1. Cutting edge 3. Wear/slot forming
2. Curved area 4. Crack
4. Examine the cutting edges of all of the blades
and sharpen the cutting edges if they are dull
or nicked (
Figure 27 ).
Note:
Sharpen only the top of the cutting
edge and maintain the original cutting angle
to ensure sharpness (
Figure 27 ). The blade
remains balanced if the same amount of metal
is removed from both cutting edges.
g000276
Figure 27
1. Sharpen at the original angle.
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