Servicing The Cutting Blades - Toro 74902TE Operator's Manual

measurement should read 8.3 cm (3-1/4 inches)
93).
16. Fine-tune the adjustment nut on the front deck lift
assembly by turning it
To increase the height, turn the adjustment nut
clockwise; to decrease, turn counterclockwise.
17. Measure until all four sides are the correct height.
Tighten all the jam nuts on the deck lift arm assemblies.
18. Lower discharge chute.

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.
DANGER
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 (PTO), and set the parking brake. Turn
the ignition key to Off. Remove the key.
Inspecting the Blades
Service Interval: Before each use or daily
1. Inspect the cutting 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
97). If you notice any damage, wear, or a slot forming
in this area (Figure
(Figure 94).
(Figure 97). If the edges
97), immediately install a new blade.
(Figure
1. Cutting edge
2. Curved area
Checking for Bent Blades
1. Disengage the blade-control switch (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
the cutting edge, position A, of the blades
Note this dimension.
1. Measure here from blade
to hard surface
4. Rotate the opposite ends of the blades forward.
5. Measure from a level surface to the cutting edge of
the blades at the same position as in step
The difference between the dimensions obtained in
(Figure
steps
dimension exceeds 3 mm (1/8 inch), the blade is bent
and must be replaced; refer to Removing the Blades
and Installing the Blades.
60
Figure 97
3. Wear/slot forming
4. Crack
(Figure 98). Measure from a level surface to
Figure 98
2. Position A
3 and 4 must not exceed 3 mm (1/8 inch). If this
(Figure 98).
3 above.