Mower Maintenance; Servicing The Cutting Blades - Toro 74760 Operator's Manual

Mower Maintenance

Servicing the Cutting
Blades
Maintain sharp blades throughout the cutting season
because sharp blades cut cleanly without tearing or
shredding the grass blades. Tearing and shredding
turns grass brown at the edges, which slows growth
and increases the chance of disease.
Check the cutter blades daily for sharpness, and
for any wear or damage. File down any nicks and
sharpen the blades as necessary. If a blade is
damaged or worn, replace it immediately with a
genuine Toro replacement blade. For convenient
sharpening and replacement, you may want to keep
extra blades on hand.
WARNING
A worn or damaged blade can break, and a
piece of the blade could be thrown into the
operator's or bystander's area, resulting in
serious personal injury or death.
• Inspect the blade periodically for wear or
damage.
• Replace a worn or damaged blade.
Before Inspecting or Servicing the
Blades
Park the machine on a level surface, disengage the
blade-control switch, and move the motion-control
levers outward to the P
and remove the key.
Inspecting the Blades
Service Interval: Before each use or daily—Check
the cutting blades.
1. Inspect the cutting edges
edges are not sharp or have nicks, remove and
sharpen the blades; refer to Sharpening the
Blades.
2. Inspect the blades, especially the curved area
(Figure 45). If you notice any damage, wear, or
a slot forming in this area (item 3 in
immediately install a new blade.
position. Stop the engine
ARK
(Figure 45). If the
Figure
1. Cutting edge
2. Curved area
Checking for Bent Blades
Note:
The machine must be on a level surface for
the following procedure.
1. Raise the mower deck to the highest
height-of-cut position; also considered the
'transport' position.
2. While wearing thickly padded gloves or other
adequate hand protection slowly rotate blade to
be measured into a position that allows effective
measurement of the distance between the
cutting edge and the level surface the machine
is on.
1. Deck
2. Spindle housing
45),
42
Figure 45
3. Wear/slot forming
4. Damage
Figure 46
3. Blade
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