Toro Z Master Commercial 3000 Series Operator's Manual page 61

Removing the Blades
Replace the blades if they hit a solid object or if a
blade is out of balance or 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 91
1. Sail area of blade
2. Blade
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both
ends of the blade
Note:
Maintain the original angle.
Note:
The blade retains balance if you remove
the same amount of material from both cutting
edges.
Figure 92
1. Sharpen at the original angle
(Figure 91).
3. Curved washer
4. Blade bolt
(Figure 92).
2. Check the balance of the blade by putting it on a
blade balancer
Note:
If the blade stays in a horizontal position,
the blade is balanced and you can use it.
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
94).
Important:
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
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3. Torque the blade bolt to 115 to 150 N∙m (85 to
110 ft-lb).
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1. Sail area of the blade
2. Blade
61
(Figure 93).
Figure 93
2. Balancer
(Figure
The curved part of the blade
(Figure 94).
Figure 94
3. Spring disk
4. Blade bolt
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91).
(Figure
(Figure 94).
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