Toro 30672 Operator's Manual page 41

Inspecting the Blades
Service Interval: Before each use or daily
1. Inspect the cutting edges
2. If the edges are not sharp or have nicks, remove
and sharpen the blade; refer to
Blades (page 42).
3. Inspect the blades, especially in the curved area.
4. If you notice any cracks, wear, or a slot forming
in this area, immediately install a new blade
(Figure 47).
Figure 48
1. Cutting edge
2. Curved area
Checking for Bent Blades
1. Disengage the PTO and engage the parking
brake.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3. Rotate the blades until the ends face forward
and backward (Figure
Figure 49
4. Measure from a level surface to the cutting
edge, position A, of the blades
Note:
Note this dimension.
(Figure 47).
Sharpening the
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3. Wear/slot forming
4. Crack
49).
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(Figure 50).
1
1. Measure from the cutting edge to a level surface.
5. Rotate the opposite ends of the blades forward.
6. Measure from a level surface to the cutting edge
of the blades at the same position as in step 3.
Note:
The difference between the dimensions
obtained in steps
(1/8 inch). If this dimension exceeds 3 mm (1/8
inch), the blade is bent and must be replaced.
Refer to Removing the Blades (page 42)
Installing the Blades (page
WARNING
A blade that is bent or damaged could
break apart and could critically injure
you or bystanders.
• Always replace a bent or damaged
blade with a new blade.
• Do not file or create sharp notches in
the edges or surfaces of the blade.
41
Figure 50
3 and 4 must not exceed 3 mm
42).
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and