Correcting Cutting Unit Mismatch - Toro 30555 Operator's Manual

CORRECTING CUTTING UNIT MISMATCH

If one cutter blade cuts lower than the others, correct as follows:
1. Lower the cutting unit onto a level surface, engage the parking
brake, be sure the traction pedal is in neutral position, the PTO
lever in the OFF position, shut engine OFF, remove the key
from the switch and disconnect wires from spark plugs. Make
sure tire pressure is equal on all tires.
2. Raise the height-of-cut to the 4 in. position: refer to Adjusting
Height Of Cut.
3. Rotate blades so the tips line up with one another. Tips of the
adjacent blades must be within 3 mm If tips are not within 3
mm of each other, proceed to step 10 and add shims between
spindle housing and bottom of the cutting unit.
4. Check to make sure front height-of-cut pins are resting proper-
ly on frame cushions. If pins are not resting properly, place a
shim or shims under cushion to raise it for proper alignment.
5. Position all three blades in the "A" position (Fig. 15) and mea-
sure from level surface to the bottom of the tip end of each
blade (Fig. 16).
6. Note measurement attained at "A", rotate blades to the"B"
position (Fig. 14), measure distance of all blades to level sur-
face and note dimensions (Fig. 15).
7. Rotate blades to the "C" position, measure and note distance
measured (Fig. 14, 15).
8. Compare measurements at various positions. All dimensions
must be equal within 6 mm from any two adjacent blades. The
difference between dimensions of all three blades must not
exceed 9.5 mm. If difference exceeds specifications, go to
step 9.
9. Remove the capscrews, flatwashers and locknuts from outer
spindle in the area where shims must be added. To raise or
lower the blade, add a shim, Part No. 3256-24, between spindle
housing and bottom of the cutting unit. Continue checking
alignment of blades and adding shims until tips of blades are
within the required dimension.
10. Equalize side-to-side measurements as follows:
Figure 15
Figure 16
1. Measure from blade tip to level surface
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