Toro 74997 Operator's Manual page 62

12. If the front deck links do not have enough adjustment
to achieve accurate cut height, loosen the 2 bolts at
the bottom of the height-of-cut plate to adjust the
single-point system
Figure 94
1. Bolts at the bottom of the height-of-cut plate
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 regains some up-and-down adjustment
on each of the 4 deck links.
Figure 95
1. Single-point adjustment bolt
(Figure 94).
(Figure 95).
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14. Tighten the 2 bolts at the bottom of the height-of-cut
plate
Note: For most conditions, adjust the back blade tip 4
mm (1/4 inch) higher than the front.
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
Note: The measurement should read 8.3 cm (3-1/4
inches)
17. Fine-tune the adjuster screw 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 the height, turn it
counterclockwise.
18. Measure until all 4 sides are the correct height.
1
19. Tighten all the nuts on the deck-lift-arm assemblies.
20. Lower the discharge chute.
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62
(Figure 94).
Figure 92.
(Figure 93).