Toro 74675 Operator's Manual page 42

1
Figure 57
1. Blade (side previously measured)
2. Measurement (position used previously)
3. Opposing side of blade being moved into measurement
position
5. Measure from the tip of the blade to the flat surface
(Figure 58).
Note: The variance should be no more than 3 mm
(1/8 inch).
1
2
Figure 58
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 Removing the Blades (page 42)
Installing the Blades (page
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.
3
2
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3
43).
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.
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2. Remove the blade bolt, curved washer, and blade from
the spindle shaft
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1. Sail area of the blade
2. Blade
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends of
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the blade (Figure
Note: Maintain the original angle.
Note: The blade retains its balance if the same amount
of material is removed from both cutting edges.
and
1. Sharpen at original angle.
2. Check the balance of the blade by putting it on a blade
balancer (Figure
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
42
(Figure 59).
Figure 59
3. Curved washer
4. Blade bolt
60).
Figure 60
61).
(Figure 60).
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