Servicing The Cutting Blades - Toro 74933 Operator's Manual

13. If the deck is too low, tighten the single point
adjustment bolt by rotating it clockwise. If the deck is
too high, loosen the single point adjustment bolt by
rotating it counterclockwise (Figure 88).
Note: Loosen or tighten the single point adjustment
bolt enough to move the height-of-cut plate mounting
bolts at least 1/3 the length of the available travel
in their slots. This will regain some up and down
adjustment on each of the four deck links.
Figure 88
1. Single point adjustment bolt
14. Tighten the two bolts at the bottom of the height of cut
plate (Figure 87). Torque to 37-45 N-m (27-33 ft-lb).
Note: In most conditions, the back blade tip should
be adjusted 6.4 mm (1/4 inch) 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 8.3 cm (3 1/4 inches) (Figure
85).
16. Fine tune the screw adjuster by turning it to get 8.3
mm (3-1/4 inches) height (Figure 86).
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 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.
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
• Replace a worn or damaged blade.
g017036
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 89). If the edges
2. Inspect the blades, especially the curved area (Figure
1. Cutting Edge
2. Curved Area
57
DANGER
damage.
are not sharp or have nicks, remove and sharpen the
blades. Refer to Sharpening the Blades.
89). If you notice any damage, wear, or a slot forming
in this area (Figure 89), immediately install a new blade.
Figure 89
3. Wear/slot Forming
4. Crack