Toro 30403 Operator's Manual page 21

1. Raise the cutting unit to the highest position,
engage the parking brake, stop the engine, and
remove the ignition key. 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, anti-scalp
cup, and blade from the spindle shaft
27).
1. Blade bolt
3. Install the blade-sail facing toward the cutting
unit-with the anti-scalp cup and blade bolt.
Tighten the blade bolt to 115 to 149 N∙m (85 to
110 ft-lb).
Important:
The curved part of the blade
must point toward the inside of the cutting
unit to ensure proper cutting.
Inspecting and Sharpening the
Blade(s)
Service Interval: Before each use or daily
Every 50 hours
DANGER
A worn or damaged blade can break, and a
piece of the blade could be thrown toward you
or bystanders, resulting in serious personal
injury or death.
• Inspect the blade periodically for wear or
damage.
• Do not try to straighten a blade that is bent.
• Do not weld a broken or cracked blade.
• Replace a worn or damaged blade with a
new Toro blade to ensure continued safety
certification of the product.
Both cutting edges and the sail, which is the turned
up portion opposite the cutting edge, contribute to a
(Figure
Figure 27
2. Anti-scalp cup
good quality-of-cut. The sail is important because it
pulls grass up straight, thereby producing an even
cut. However, the sail will gradually wear down
during operation, and this condition is normal. As
the sail wears down, the quality-of-cut will degrade
somewhat, although the cutting edges are sharp.
The cutting edge of the blade must be sharp so that
the grass is cut rather than torn. A dull cutting edge
is evident when the tips of the grass appear brown
and shredded. Sharpen the cutting edges to correct
this condition.
1. Park the machine on a level surface. Raise the
cutting unit, engage the parking brake, put the
traction pedal in neutral, put the PTO lever in the
O position, shut off the engine, and remove
FF
the key.
2. Examine the cutting ends of the blade carefully,
especially where the flat and curved parts of
the blade meet
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 you
g010555
see wear
Removing and Installing the Blade(s) (page
1. Cutting edge
2. Curved area/sail
WARNING
If the blade is allowed to wear, a slot
will form between the sail and flat part
of the blade
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.
• Replace a worn or damaged blade with
a new Toro blade to ensure continued
safety certification of the product.
3. Examine the cutting edges of all blades.
Sharpen the cutting edges if they are dull or
21
(Figure 28). Since sand and
(Figure 28), replace the blade; refer to
Figure 28
3. Wear/slot forming
4. Crack
(Figure 28). Eventually, a
20).
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