Toro TimeCutter ZD530, Руководство оператора

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the same amount of material is removed from
both cutting edges.
Figure 51
1. Sharpen at original angle
2. Check the balance of the blade by putting it on
a blade balancer (Figure 52). If the blade stays
in a horizontal position, the blade is balanced
and can be used. If the blade is not balanced,
file some metal off the end of the sail area only
(Figure 51). Repeat this procedure until the
blade is balanced.
Figure 52
1. Blade 2. Balancer
Installing the Blades
1. Install the blade onto the spindle shaft
(Figure 50).
Important:
The curved part of the blade
must be pointing upward toward the inside
of the mower to ensure proper cutting.
2. Install the blade stiffener, the curved washer
(cupped side toward the blade) and the blade
bolt (Figure 50).
3. Torque the blade bolt to 35-65 ft-lb
(47-88 N
⋅
m).
Leveling the Mower from
Side-to-Side
The mower blades must be level from side to side.
Check the side-to-side level any time you install
the mower or when you see an uneven cut on your
lawn.
1. Park the machine on a level surface and
disengage the blade control switch.
2. Move the motion control levers to the brake
position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving
the operating position.
3. Check the air pressure of all four tires. If
needed, adjust to the recommended inflation;
refer to Checking the Tire Pressure in
Drive System Maintenance, page 37.
4. Set the height-of-cut lever to position D
[3 inch (76 mm)].
5. Carefully rotate the blade(s) side to side
(Figure 53). Measure between the outside
cutting edges and the flat surface (Figure 53).
If both measurements are not within 3/16 inch
(5 mm), an adjustment is required; continue
with this procedure.
Figure 53
1. Blades side to side 3. Outside cutting edges
2. Cutting edge 4. Measure here
6. Remove the hairpin cotter and washer from
the leveling bracket (Figure 54).
7. To level the blade(s), reposition the leveling
bracket(s) in a different hole and install the
washer and hairpin cotter. (Figure 54 ). A front
hole lowers the blade height and a rear hole
raises its height. Adjust both sides as required.
39