Toro 30672 Operator's Manual page 39

WARNING
A blade that is bent or damaged could
break apart and could critically injure
you or bystanders.
• Always replace a bent or damaged
blade with a new blade.
• Do not file or create sharp notches in
the edges or surfaces of the blade.
Removing the Blades
Replace the blades if you hit a solid object or if the
blades are 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 bolt with a wrench.
2. Remove the nut, blade bolt, curved washer,
blade, spacers, and thin washer from the spindle
(Figure 47).
Figure 47
1. Blade
2. Blade bolt
3. Curved washer
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4. Spacer
5. Thin washer
6. Nut
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 its balance if the same
amount of material is removed from both cutting
edges.
1. Sharpen at original angle.
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.
Note:
If the blade is not balanced, file some
metal off the end of the sail area only
1. Blade
3. Repeat this procedure until the blade is
balanced.
Installing the Blades
1. Install the curved washer and then the blade
onto the bolt. Select the proper number of
spacer(s) for the height of cut, and slide the bolt
into the spindle
Important:
The curved part of the blade
must point upward toward the inside of the
mower to ensure proper cutting.
2. Install the remaining spacer(s) and secure them
with a thin washer and a nut
3. Torque the blade bolt to 101 to 108 N∙m (75 to
80 ft-lb).
39
(Figure 48).
Figure 48
(Figure 49).
(Figure
Figure 49
2. Balancer
(Figure 47).
(Figure 47).
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48).
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