Removing The Blades - Toro 74142TE Operator's Manual

Removing the Blades

Replace a blade if it hits an object, if the blade is out of balance,
or if the blade is bent. To ensure optimum performance and
continued safety conformance of the machine, use genuine
Toro replacement blades. Replacement blades made by other
manufacturers may result in nonconformance with safety
standards.
1. Hold the blade end using a rag or a thickly padded
glove.
2. Remove the blade bolt, curved washer, and blade from
the spindle shaft (Figure
Figure 83
1. Sail area of the blade
2. Blade
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends of
the blade (Figure 84).
Note: Maintain the original angle.
Note: The blade retains balance if you remove the
same amount of material from both cutting edges.
Figure 84
1. Sharpen at the original angle
2. Check the balance of the blade by putting it on a blade
balancer (Figure 85).
83).
3. Curved washer
4. Blade bolt
Note: If the blade stays in a horizontal position, the
blade is balanced and ready to use.
1. Blade
3. If the blade is not balanced, file some metal off the end
of the sail area only
4. Repeat this procedure until the blade is balanced.
Installing the Blades
1. Install the blade onto the spindle shaft
Important: The curved part of the blade must
point upward toward the inside of the mower to
ensure proper cutting.
2. Install the spring disk and blade bolt
Note: Install the spring-disk cone toward the bolt
head.
3. Torque the blade bolt to 115 to 150 N∙m (85 to
110 ft-lb).
1. Sail area of the blade
2. Blade
57
Figure 85
2. Balancer
(Figure 83).
(Figure
(Figure
Figure 86
3. Spring disk
4. Blade bolt
86).
86).