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Figure 114
Left and Center Spindle Shown
1. Sail area of the blade
2. Blade
Figure 115
Blade location
1. Front of mower deck
2. Right-threaded blade bolts 5. Left-threaded blade bolt
3. Regular blades
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3. Curved washer
4. Blade bolt
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4. Counter-rotating blade
Sharpening the Blades
1.
Use a file to sharpen the cutting edge at both
ends of the blade
Note:
Maintain the original angle.
Note:
The blade retains its balance if the same
amount of material is removed from both cutting
edges.
1. Sharpen at original angle.
2.
Check the balance of the blade by putting it on
a blade balancer
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
116).
1. Blade
3.
Repeat this procedure until the blade is
balanced.
Installing the Blades
Side-Discharge Machines
1.
Install the blade onto the spindle shaft
113).
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
113).
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).
71
(Figure
116).
Figure 116
(Figure
117).
(Figure
Figure 117
2. Balancer
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(Figure
(Figure
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