Toro Z Master Professional 5000 Series Operator's Manual page 65

Removing the Blades
Blades must be replaced if a solid object is hit, 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, the curved washer, and
the blade from the spindle shaft
Figure 98
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
Note:
Maintain the original angle.
Note:
The blade retains balance if the same
amount of material is removed from both cutting
edges.
Figure 99
1. Sharpen at the original angle
(Figure 98).
3. Curved washer
4. Blade bolt
(Figure 99).
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 can be used.
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
101).
Important:
must be pointing upward toward the inside
of the mower to ensure proper cutting.
2. Install the spring disk and blade bolt
101).
Note:
The spring-disk cone must be installed
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
65
(Figure 100).
Figure 100
2. Balancer
(Figure
The curved part of the blade
(Figure 101).
Figure 101
3. Spring disk
4. Blade bolt
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98).
(Figure
(Figure
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