Toro 30839, Operator'S Manual, Page: 55 / 60

Inspecting the Blade Plane
1. Remove the hydraulic motor from the cutting
deck and remove the cutting deck from the
tractor.
Note:
Use a hoist (or a minimum of 2 people)
and place the cutting deck on a flat table.
2. Mark an end of the blade with a paint pen or
marker.
Note:
Use this end of the blade to check all
heights.
3. Position the cutting edge of the marked end
of the blade at the 12 o’clock position (straight
ahead in the direction of mowing) and measure
the height from the table to the cutting edge of
the blade (
Figure 70 ).
g011353
Figure 70
4. Rotate the marked end of the blade to the 3
o’clock and 9 o’clock positions and measure the
heights (
Figure 70 ).
5. Compare the 12 o’clock position measured
height to the height-of-cut setting.
Note:
It should be within 0.7 mm (0.03 inch).
The 3 o’clock and 9 o’clock heights should be
3.8 ± 2.2 mm (0.15 ± 0.09 inch) higher than the
12 o’clock setting and within 2.2 mm (0.09 inch)
of each other.
If any of these measurements are not within
specification, proceed to
Adjusting the Blade Plane
(page 55) .
Adjusting the Blade Plane
Start with the front adjustment (change 1 bracket at a
time).
1. Remove the height-of-cut bracket (front, left, or
right) from the deck frame (
Figure 71 ).
g031647
Figure 71
1. Height-of-cut bracket 2. Shims
2. Adjust the 1.5 mm (0.06 inch) shims and/or 0.7
mm (0.03 inch) shim between the deck frame
and bracket to achieve the desired height of cut
(
Figure 71 ).
3. Install the height-of-cut bracket to the deck
frame with the remaining shims assembled
below the height-of-cut bracket (
Figure 71 ).
4. Secure the socket-head bolt and spacer and
flange nut.
Note:
The socket-head bolt and spacer are
held together with Loctite to prevent the spacer
from falling inside the deck frame.
5. Verify the 12 o’clock position setting and adjust
if needed.
6. Determine if you need to adjust only 1 or both
(right and left side) height-of-cut brackets.
Note:
If the 3 o’clock or 9 o’clock side is 3.8 ±
2.2 mm (0.15 ± 0.09 inch) higher than the new
front height, then you do not need to adjust for
that side. Adjust the other side to within ± 2.2
mm (0.09 inch) of the correct side.
7. Adjust the right and/or left height-of-cut brackets
by repeating steps
1 through 3 .
8. Secure the carriage bolts and flange nuts.
9. Verify the 12, 3, and 9 o’clock heights.
Servicing the Blade
Removing the Blade
Replace the blade if it hits a solid object, the blade
is out of balance, or if the blade is bent. Always use
genuine Toro replacement blades to ensure safety
and optimum performance. Never use replacement
55