Toro SS 4200, Operator'S Manual

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Figure 53
81 cm (32-Inch) Decks
1. Sail area of the blade
4. Blade bolt
2. Blade 5. Blade stiffener
3. Curved washer
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Figure 54
107 cm (42-Inch) Decks
1. Sail area of the blade 3. Curved washer
2. Blade 4. Blade bolt
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both
ends of the blade (
Figure 55 ).
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 55
1. Sharpen at original angle.
2. Check the balance of the blade by putting it on a
blade balancer (
Figure 56 ).
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 55 ).
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Figure 56
1. Blade 2. Balancer
3. Repeat this procedure until the blade is
balanced.
Installing the Blades
1. Install the blade onto the spindle shaft ( Figure
54 ).
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 (32-inch decks only),
curved washer (cupped side toward the blade),
and blade bolt (
Figure 54 ).
3. Torque the blade bolt to 47 to 88 N∙m (35 to 65
ft-lb).
Leveling the Mower Deck
Check to ensure that the mower deck is level
whenever you install the mower or when you see an
uneven cut on your lawn.
Check the mower deck for bent blades prior to
leveling; remove and replace any bent blades; refer
to the
Checking for Bent Blades (page 43) before
continuing.
Level the mower deck side-to-side first, then adjust
the front to rear slope.
Requirements:
•
The machine must be on a level surface.
•
All tires must be properly inflated; refer to Checking
the Tire Pressure (page 40) .
Leveling from Side to Side
1. Park the machine on a level surface, disengage
the blade-control switch (PTO), and engage the
parking brake.
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