Removing The Blades - Toro 74568TE Operator's Manual

Checking for Bent Blades
1. Disengage the PTO, move the motion-control levers to
the neutral-locked position, and set the parking brake.
2. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
3. Rotate the blades until the ends face forward and
backward.
4. Measure from a level surface to the cutting edge,
position A, of the blades (Figure 78 ).
Figure 78
1. Measure here from blade
to hard surface
5. Rotate the opposite ends of the blades forward.
6. Measure from a level surface to the cutting edge of the
blades at the same position as in step 4 above.
Note: The difference between the dimensions
obtained in steps 4 and 5 must not exceed 3 mm
(1/8 inch).
Note: If this dimension exceeds 3 mm (1/8 inch), the
blade is bent and must be replaced.
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.
• Do not file or create sharp notches in the
edges or surfaces of the blade.
2. Position A

Removing the Blades

Blades must be replaced if a solid object is hit, if the
blade is out of balance, or if the blade 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 nonconformance with safety standards.
1. Hold the blade end using a rag or a thickly-padded
glove.
2. Remove the blade bolt, the curved washer, and the
blade from the spindle shaft (Figure 79).
1. Sail area of the blade
2. Blade
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends of
the blade (Figure 80).
Note: Maintain the original angle.
Note: The blade retains balance if the same amount
of material is removed from both cutting edges.
1. Sharpen at the original angle
2. Check the balance of the blade by putting it on a blade
balancer (Figure 81).
54
Figure 79
3. Curved washer
4. Blade bolt
Figure 80