Inspecting And Sharpening The Cutter Blade(S) - Toro 30605 Operator's Manual

6. Install the blade, anti-scalp cup, and blade bolt.
Important: The curved part of the blade must
point toward the inside of the cutting unit to
ensure proper cutting.
Note: After striking a foreign object, torque all the
spindle pulley nuts to 115 to 149 N-m (85 to 110 ft-lb).
1. Blade bolt
7. Torque the blade bolt to 115 to 149 N-m (85 to 110
ft-lb).
Inspecting and Sharpening the
Cutter Blade(s)
DANGER
A worn or damaged blade can break, and a piece
of the blade could be thrown at you or bystanders,
resulting in serious personal injury or death.
Trying to repair a damaged blade may result in
discontinued safety certification of the product.
• Inspect the blade periodically for wear or
damage.
• Never try to straighten a blade that is bent or
weld a broken or cracked blade.
• Replace a worn or damaged blade.
Two areas to check when servicing the cutter blade are the sail
and the cutting edge. Both cutting edges and the sail, which is
the turned up portion opposite the cutting edge, contribute
to a good quality of cut. The sail lifts the grass up straight,
thereby producing an even cut. However, the sail gradually
wears down during operation, and this condition is normal.
As the sail wears down, the quality of cut degrades, although
the cutting edges remain 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. Move the machine to a level surface.
2. Raise the cutting unit, engage the parking brake, put the
traction pedal in neutral, put the PTO lever in the O
position, stop the engine, and remove the ignition key.
Figure 78
2. Anti-scalp cup
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 mower. If wear
is noticed (Figure
1. Cutting edge
2. Curved area
4. Examine 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
balanced if the same amount of metal is removed from
both cutting edges.
FF
54
79).
79), replace the blade.
Figure 79
3. Wear/slot forming
4. Crack
(Figure 80). The blade remains