Toro TITAN 74891, Operator'S Manual

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Figure 59
1. Sail Area of 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 60 ).
Note:
Maintain the original angle.
Note:
The blade retains its balance if the same amount
of material is removed from both cutting edges.
Figure 60
1. Sharpen at original angle.
2. Check the balance of the blade by putting it on a blade
balancer (
Figure 61 ).
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 60 ).
Figure 61
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 59 ).
Important:
The curved part of the blade must be
pointing upward toward the inside of the mower to
ensure proper cutting.
2. Install the spring disk and blade bolt with the spring
disk cone installed toward the bolt head (
Figure 59 ).
3. Torque the blade bolt to 135 to 150 N•m (100 to
110 ft-lb).
Leveling the Mower Deck
Ensure that the mower deck is level any time you install the
mower deck 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
Checking for
Bent Blades (page 40) before continuing.
Level the mower deck side-to-side before adjusting the
front-to-rear slope.
Requirements:
•
The machine must be on a level surface.
•
All 4 tires must be properly inflated; refer to Checking
the Tire Pressure (page 37) .
Checking the Side-to-Side Level
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 outward to the
N
EUTRAL
-L
OCK
position, shut off the engine, remove
the key, set the parking brake, and wait for all moving
parts to stop before leaving the operating position.
3. Carefully rotate the blades side to side.
4. Measure between the outside cutting edges and the flat
surface (
Figure 62 ).
Note:
If both measurements are not within 5 mm
(3/16 inch), an adjustment is required; refer to Leveling
the Mower Deck (page 43) .
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