Servicing The Cutting Blades - Toro 74952 Operator's Manual

too high, loosen the single point adjustment bolt by
rotating it counterclockwise
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 4 deck links.
Figure 89
1. Single point adjustment bolt
14. Tighten the 2 bolts at the bottom of the height-of-cut
plate (Figure 88). Torque them to 37 to 45 N-m (27
to 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); refer
to Figure 86.
16. Fine-tune the adjuster screw by turning it to get 8.3
mm (3-1/4 inches) height
To increase the height, turn the adjustment nut
clockwise; to decrease the height, turn the nut
counterclockwise.
17. Measure until all 4 sides are the correct height. Tighten
all the jam nuts on the deck-lift arm assemblies.
18. Lower the discharge chute.
(Figure 89).
g017036
(Figure 87).

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
90). If you notice any damage, wear, or a slot forming
in this area (Figure
1. Cutting edge
2. Curved area
57
(Figure 90). If the edges
90), immediately install a new blade.
Figure 90
3. Wear/slot forming
4. Crack
(Figure