Toro 74501 Operator's Manual page 22

Checking for Bent Blades
1. Stop the engine, set the parking brake, remove the key,
and disconnect the spark plug wire(s) from the spark
plug(s).
2. Rotate the blades until the ends face forward and
backward (Fig. 19). Measure from a level surface to the
cutting edge of the blades (Fig. 20). Note this
dimension.
Figure 19
Figure 20
3. Rotate the opposite ends of the blades forward. Measure
from a level surface to the cutting edge of the blades at
the same position as in step 2 above. The difference
between the dimensions obtained in steps 2 and 3 must
not exceed 1/8 in. (3 mm). If this dimension exceeds
1/8 in. (3 mm), the blade is bent and must be replaced;
refer to Removing the Blades and Installing the Blades,
page 23.
A blade that is bent or damaged could break apart
and could seriously injure or kill you or
bystanders.
Always replace bent or damaged blade with a
new blade.
Never file or create sharp notches in the edges
or surfaces of blade.
Removing the Blades
The blades must be replaced if a solid object is hit, if the
blade is out of balance, or the blade 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
m–1078
result in non-conformance with safety standards.
Hold the blade end using a rag or thickly-padded glove.
Remove the blade bolt, curved washer, and blade from the
spindle shaft (Fig. 21).
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2
3
4
1. Sail area of blade
2. Blade
22
Warning
Figure 21
3. Curved washer
4. Blade bolt
1
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