Removing The Blades - Toro TimeCutter 74780 Operator's Manual

1
Figure 46
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 47).
Note: The variance should be no more than 3 mm
(1/8 inch).
1
2
Figure 47
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 37)
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
38).

Removing the Blades

Replace the blades if they hit a solid object, or if the blade is
out of balance or bent.
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
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1. Sail area of the blade
2. Blade
3. Curved washer
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends of
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.
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1. Sharpen at original angle.
2. Check the balance of the blade by putting it on a blade
and
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
1. Blade
37
(Figure 48).
Figure 48
4. Blade bolt
5. Blade stiffener
49).
Figure 49
50).
(Figure 49).
Figure 50
2. Balancer
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