Replacing The Grass Deflector - Toro 30555 Operator's Manual

8. Compare the measurements at various positions. All
dimensions must be equal within 1/4 in. (6 mm) from
any 2 adjacent blades. The difference between the
dimensions of all 3 blades must not exceed 3/8 in.
(10 mm). If the difference exceeds specifications,
proceed to step 9.
9. Remove the capscrews, flat washers, and locknuts from
the outer spindle in the area where the shims must be
added. To raise or lower the blade, add a shim, Part No.
3256-24, between the spindle housing and bottom of the
cutting unit. Continue checking the alignment of the
blades and adding shims until the tips of the blades are
within the required dimension.
10. Equalize the side-to-side measurements as follows:
A. Cutting units usually operated at 1 to 2 in. (25 to
51 mm) height-of-cut should have the low side of
the cutting unit raised. Remove the lynch pin
securing the castor wheel on the low end (Fig. 31)
and remove the castor assembly.
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1
Figure 31
1. Thrust washers
(as required)
B. Transfer one thrust washer from the top side of the
castor shaft to the lower side, install the castor
assembly, and compare the blade height of all
blades; refer to steps 3 through 7. Continue adding
thrust washers if the height still does not meet the
requirements.
C. If the cutting unit is operated at the 2 to 4 in.
(51 mm to 102 mm) height-of-cut, lower the high
side of the cutting unit. Remove the lynch pin of the
castor at the high end of the unit and remove the
castor assembly (Fig. 31).
2. Lynch pin
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D. Transfer one thrust washer from the lower side of
the castor shaft to the top side, install the assembly,
and compare the blade height of all of the blades;
refer to steps 3 through 7. Repeat the procedure if
the height still does not meet the requirements.
E. If the height is within the specified dimension,
install the lynch pin, set the height-of-cut to the
proper height, and resume operation.

Replacing the Grass Deflector

1. Position the machine on a level surface, raise the cutting
unit, engage the parking brake, put the traction pedal in
neutral, the PTO lever in the Off position, shut the
engine off, and remove the ignition key. Block the
cutting unit to prevent it from accidentally falling.
2. Remove the 2 capscrews, locknuts, and springs securing
the deflector mounts to the pivot brackets (Fig. 32).
3. To remove the pivot brackets, remove the carriage bolts
and nuts (Fig. 32).
4. Install the pivot brackets on top of the discharge
opening with the carriage bolts and nuts. The head of
the carriage bolts must be on the inside of the cutting
unit.
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1
Figure 32
1. Capscrew
2. Locknuts
5. Position the deflector mounts on the pivot brackets and
secure the parts together with the capscrews, locknuts,
and springs. Both locknuts must face each other.
Tighten the locknuts until they are flush against the
deflector pivots.
6. Lift the deflector and allow it to drop to check the
spring tension. The deflector must be held firmly in the
full downward position by the spring tension. Correct it
if necessary.
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4
3
3. Pivot brackets
4. Spring