Toro Groundsmaster 4300-D Operator's Manual page 13

2. Grasp the end of the blade using a rag or
thickly-padded glove.
3. Remove the blade bolt, anti-scalp cup, and
blade from the spindle shaft
Figure 16
1. Blade bolt
4. 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:
7
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
Blade
1. Raise the cutting deck to the transport position,
turn the key in the ignition switch to the O
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
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
refer to Servicing the Blade Plane (page
(Figure 16).
2. Anti-scalp cup
17).
(Figure 17), replace the blade;
DANGER
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.
• Always replace a worn or damaged
blade.
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1. Cutting edge
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
6. If dull or nicked, sharpen only the top cutting
edge while maintaining the original cutting angle
(Figure
FF
Note:
same amount of metal is removed from both
cutting edges.
1. Sharpen at this angle only
11).
7. To check the blade for being straight and
parallel, lay the blade on a level surface and
check its ends.
13
(Figure 17). Eventually a
Figure 17
3. Wear/slot/crack
(Figure 18).
18).
The blade will remain balanced if the
Figure 18
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