Toro Groundsmaster 3320, Operator'S Manual

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g004653
Figure 25
1. Cutting edge 3. Wear/slot forming
2. Curved area 4. Crack
3. Examine the cutting edges of all of the blades
and sharpen the cutting edges if they are dull
or nicked (
Figure 26 ).
Note:
Sharpen only the top of the cutting
edge and maintain the original cutting angle
to ensure sharpness (
Figure 26 ). The blade
remains balanced if the same amount of metal
is removed from both cutting edges.
g000276
Figure 26
1. Sharpen at the original angle.
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
Removing and Installing the
Cutting-Unit Blade(s) (page 21) .
Checking and Correcting
Mismatch of Blades
If a cutting blade cuts lower than the others, correct
them as follows:
1. Lower the cutting unit onto a level surface,
engage the parking brake, put the traction pedal
in neutral and the PTO lever in the O
FF
position,
shut the engine off, and remove the ignition key.
2. Ensure that the tire pressure is equal in all the
tires.
3. Raise the height-of-cut to the 102 mm (4 inches)
position; refer to
Adjusting the Height of Cut
(page 12) .
4. Rotate the blades so that the tips line up with
one another.
Note:
The tips of the adjacent blades must be
within 3 mm (1/8 inch) of each other. If the tips
are not within 3 mm (1/8 inch) of each other,
proceed to step
10 and add shims between the
spindle housing and bottom of the cutting unit.
5. Ensure that the front height-of-cut pins are
resting properly on the frame cushions. If the
pins are not resting properly, place a shim or
shims under the cushion to raise it for proper
alignment.
6. Position all 3 blades in the A position ( Figure
27 ), and measure from the level surface to the
bottom of the tip end of each blade ( Figure 28 ),
and note the measurement.
g010556
Figure 27
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