Toro 74955, Operator'S Manual

Page: 59 / 68

Removing the Blades
Blades must be replaced if a solid object is hit, if the blade is
out of balance or 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 non-conformance with
safety standards.
1. Hold the blade end using a rag or thickly-padded glove.
2. Remove the blade bolt, curved washer, and blade from
the spindle shaft (
Figure 92 ).
Figure 92
1. Sail area of blade 3. Curved washer
2. Blade 4. Blade bolt
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends of
the blade (
Figure 93 ).
Note:
Maintain the original angle.
Note:
The blade retains balance if the same amount
of material is removed from both cutting edges.
Figure 93
1. Sharpen at the original angle
2. Check the balance of the blade by putting it on a blade
balancer (
Figure 94 ).
Note:
If the blade stays in a horizontal position, the
blade is balanced and can be used.
Figure 94
1. Blade 2. Balancer
3. If the blade is not balanced, file some metal off the end
of the sail area only (
Figure 97 ).
4. Repeat this procedure until the blade is balanced.
Installing the Blades
1. Install the blade onto the spindle shaft ( Figure 95 ).
Important:
The curved part of the blade must be
pointing upward toward the inside of the mower to
ensure proper cutting.
2. Install the spring disk and blade bolt ( Figure 95 ).
Note:
The spring-disk cone must be installed toward
the bolt head ( Figure 95 ).
3. Torque the blade bolt to 115 to 150 N-m (85 to
110 ft-lb).
Figure 95
1. Sail area of the blade 3. Spring disk
2. Blade 4. Blade bolt
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