Toro 74143 Operator's Manual page 49

Figure 73
1. Whizlock nut
2. Adjuster screw
11. If the front deck links do not have enough adjustment
to achieve accurate cut height , the single point
adjustment can be utilized to gain more adjustment.
12. To adjust the single point system, loosen the two bolts
at the bottom of the height of cut plate. Refer to Figure
74.
Figure 74
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 (Figure 75).
Note: Loosen or tighten the single point adjustment
bolt enough to move the height-of-cut plate mounting
g017441
3. Jam nut
4. Yoke
g017442
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.
1. Single point adjustment bolt
14. Tighten the two bolts at the bottom of the height of cut
plate (Figure 74). Torque to 27-33 ft-lb (37-45 N-m).
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
72).
16. Fine tune the screw adjuster by turning it to get 3–1/4
inches (8.3 mm) height (Figure 73).
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.
1
49
g017036
Figure 75