Toro 39488 Operator's Manual page 46

WARNING
A blade that is bent or damaged could break
apart and could seriously injure or kill you or
bystanders.
• Always replace bent or damaged blade with
a new blade.
• Never file or create sharp notches in the
edges or surfaces of blade.
Removing the Blades
Blades must be replaced if a solid object is hit, if the
blade is out of balance or is bent. To ensure optimum
performance and continued safety conformance of
the machine, use genuine Toro replacement blades.
Replacement blades made by other manufacturers may
result in non-conformance with safety standards.
1. Hold the blade end using a rag or thickly-padded
glove.
2. For 48 inch mower decks, remove the blade bolt,
curved washer, and blade from the spindle shaft
(Figure 64).
Figure 64
48 inch Mower Decks
1. Sail Area of Blade
2. Blade
3. For 36 inch mower decks, remove the blade bolt,
curved washer, blade stiffener, and blade from the
spindle shaft (Figure 65).
3. Curved washer
4. Blade Bolt
36 inch inch Mower Decks
1. Sail Area of Blade
2. Blade
3. Blade stiffener
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends
of the blade (Figure 66). Maintain the original angle.
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 (Figure 67). 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 64). Repeat this
procedure until the blade is balanced.
46
Figure 65
4. Curved washer
5. Blade Bolt
Figure 66