Toro Z Master 74028, Руководство оператора

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Sharpening the Blades
1. Use a file to sharpen the cutting edge at both
ends of the blade (
Figure 81 ).
Note:
Maintain the original angle.
Note:
The blade retains its balance if the same
amount of material is removed from both cutting
edges.
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Figure 81
1. Sharpen at original angle.
2. Check the balance of the blade by putting it on a
blade balancer (
Figure 82 ).
Note:
If the blade stays in a horizontal position,
the blade is balanced and can be used.
Note:
If the blade is not balanced, file some
metal off the end of the sail area only ( Figure 81 ).
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Figure 82
1. Blade 2. Balancer
3. Repeat this procedure until the blade is
balanced.
Installing the Blades
Side-Discharge Machines
1. Install the blade onto the spindle shaft ( Figure
78 ).
Important:
The curved part of the blade
must point upward toward the inside of the
mower to ensure proper cutting.
2. Install the curved washer and blade bolt ( Figure
78 ).
Note:
Install the curved-washer cone toward
the bolt head.
3. Torque the blade bolt to 115 to 150 N∙m (85 to
110 ft-lb).
Rear-Discharge Machines
Important:
The right blade on this mower deck is
counter-rotating and uses a left-threaded blade
bolt. Use Figure 80 for the correct placement of
the mower blades.
1. Install the left and center blades, curved
washers, and blade bolts to the spindle shafts
(
Figure 79 and Figure 80 ).
Important:
The curved part of the blade
must point upward toward the inside of the
mower to ensure proper cutting.
Note:
Install the curved-washer cone towards
the bolt head ( Figure 79 ).
2. Install the right blade, curved washer, and blade
bolt (left-threaded bolt) to the spindle shaft
(
Figure 79 and Figure 80 ).
3. Torque the blade bolt to 115 to 150 N∙m (85 to
110 ft-lb).
Leveling the Mower Deck
Note:
Ensure that the mower deck is level before
matching the height of cut (HOC).
1. Park the machine on a level surface, disengage
the blade-control switch, and engage the parking
brake.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3. Check tire pressure of the drive tires.
If needed, adjust to 124 kPa (18 psi).
4. Using the deck-lift switch, move the deck height
out of the transport position (or 5-1/2 inches
(140 mm) cutting height).
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Figure 83
1. Height-of-cut bracket 2. Height-of-cut pin
5. Insert the height-adjustment pin into the 76 mm
(3 inches) height-of-cut location.
6. Release the transport lock and allow the deck to
lower to the cutting height.
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