Servicing The Cutting Blades - Toro 78922 Operator's Manual

Note: In most conditions, the back blade tip should
be adjusted 1/4 inch (6.4 mm) higher than the front.
15. On both sides of the deck, measure from the level
surface to the back tip of the blade (Postion B). The
measurement should read 3 1/4 inches (8.3 cm)
(Figure 88).
16. Fine-tune the adjustment nut on the front deck lift
assembly by turning it (Figure 89).
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 (Figure 92). If the 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 92). If you notice any damage, wear, or a slot
forming in this area (Figure 92), immediately install a
new blade.
1. Cutting Edge
2. Curved Area
59
Figure 92
3. Wear/slot Forming
4. Crack