Removing The Blades - Toro 74787 Operator's Manual

1
2
1. Opposite blade edge (in position for measuring)
2. Level surface
3. Second measured distance between blade and surface (B)
WARNING
A blade that is bent or damaged could break
apart and could seriously injure or kill you or
bystanders.
• Always replace a bent or damaged blade
with a new blade.
• Never file or create sharp notches in the
edges or surfaces of the blade.
A. If the difference is greater than 3 mm (1/8 inch),
replace the blade with a new blade; refer to
Removing the Blades (page 40)
Blades (page 41).
Note: If you replace a bent 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

Replaces a blade if it hits a solid object, if it is out of balance,
or if it 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 non-conformance with safety
standards.
1. Hold the blade end using a rag or thickly-padded glove.
2. Remove the blade bolt, the curved washer, and the
blade from the spindle shaft
G014973
3
Figure 47
and Installing the
(Figure 48).
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 (Figure
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 (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
3. Repeat this procedure until the blade is balanced.
40
Figure 48
3. Curved washer
4. Blade bolt
49).
Figure 49
50).
(Figure 49).
Figure 50
2. Balancer