Servicing The Cutting Blades - Toro 74946 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
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 gain some up and down adjustment
on each of the 4 deck links.
14. Tighten the 2 bolts at the bottom of the height-of-cut
plate (Figure 93).
Note: In most conditions, the back blade tip should
be adjusted 6.4 mm (1/4 inch) higher than the front.
Figure 93
1. Single-point adjustment bolt
15. Torque the 2 bolts to 37 to 45 N∙m (27 to 33 ft-lb).
16. On both sides of the deck, measure from the level
surface to the back tip of the blade (position B) as
shown in Figure 89.
Note: The measurement should read 8.3 cm (3-1/4
inches)
17. Fine-tune the screw adjuster by turning it to get 8.3
mm (3-1/4 inches) height
Note: To increase the height, turn the adjustment nut
clockwise; to decrease, turn counterclockwise.
18. Measure until all 4 sides are the correct height.
19. Tighten all the nuts on the deck-lift-arm assemblies.
20. Lower the discharge chute.
(Figure 93).
g017036
(Figure 91).

Servicing the Cutting Blades

To ensure a superior quality of cut, keep the blades sharp. For
convenient sharpening and replacement, keep extra blades
on hand.
WARNING
A worn or damaged blade can break, and a piece
of the blade could be thrown at you or bystanders,
resulting in serious personal injury or death.
• Inspect the blades periodically for wear or
damage.
• Replace a worn or damaged blade.
Before Inspecting or Servicing the
Blades
1. Park the machine on a level surface, Disengage the
blade-control switch (PTO), and set the parking brake.
2. Turn the ignition key to off. Remove the key, and
disconnect the spark plug wires from the spark plugs.
Inspecting the Blades
Service Interval: Before each use or daily
1. Inspect the cutting edges
2. If the edges are not sharp or have nicks, remove and
sharpen the blade; refer to
65) and Sharpening the Blades (page
3. Inspect the blades, especially in the curved area.
4. If you notice any cracks, wear, or a slot forming in this
area, immediately install a new blade
1. Cutting edge
2. Curved area
64
(Figure 94).
Removing the Blades (page
65).
(Figure
Figure 94
3. Wear/slot forming
4. Crack
94).