Removing The Blades - Toro 74784 Operator's Manual

1. Opposite blade edge (in position for measuring)
2. Level surface
3. Second measured distance between blade and surface (B)
A. If the difference between A and B is greater
than 3 mm (1/8 inch), replace the blade with
a new blade; refer to
(page 38) and
39).
Note:
If a bent blade is replaced with a
new blade, and the dimension obtained
continues to exceed 3 mm (1/8 inch), the
blade spindle could be bent. Contact an
Authorized Toro Dealer for service.
B. If the variance is within constraints, move to
the next blade.
6. Repeat this procedure on each blade.

Removing the Blades

The blades must be replaced if a solid object is hit, if
the blade is out of balance, or if the blade is bent. For
best 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 48
Removing the Blades
Installing the Blades (page
(Figure 49).
g014973
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 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.
38
Figure 49
3. Curved washer
4. Blade bolt
(Figure 50).
Figure 50
(Figure 51).
(Figure
Figure 51
2. Balancer
g027833
g000552
50).
g000553