Toro Groundsmaster 4500-D Operator's Manual page 72

Figure 91
1. Cutting edge
2. Curved area
3. Examine the cutting edges of all of the blades
and sharpen the cutting edges if they are dull
or nicked (Figure
Note:
Sharpen only the top of the cutting edge
and maintain the original cutting angle to ensure
sharpness (Figure
balanced if you remove the same amount of
metal from both cutting edges.
Figure 92
1. Sharpen at the original angle.
3. Wear/slot forming
4. Crack
92).
92). The blade remains
Note:
Remove the blades and sharpen them
on a grinder. After sharpening the cutting edges,
install the blade with the anti-scalp cup and
blade bolt; refer to
Cutting-Unit Blade(s) (page
4. Ensure that the blade is straight and parallel; lay
the blade on a level surface and check its ends.
The ends of the blade must be slightly lower
than the center, and the cutting edge must be
lower than the heel of the blade.
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72
Removing and Installing the
71).