Leveling The Mower Deck - Toro 74780 Operator's Manual

Installing the Blades
1. Install the blade onto the spindle shaft
Important: The curved part of the blade must be
pointing upward toward the inside of the mower to
ensure proper cutting.
2. Install the curved washer (cupped side toward the
blade) and the blade bolt
3. Torque the blade bolt to 47 to 88 N∙m (35 to 65 ft-lb).

Leveling the Mower Deck

Ensure that the mower deck is level any time you install the
mower deck or when you see an uneven cut on your lawn.
Check the mower deck for bent blades prior to leveling;
remove and replace any bent blades. Refer to the
for Bent Blades (page 36)
Level the mower deck side to side before adjusting the
front-to-rear slope.
Requirements:
•
The machine must be on a level surface.
•
All 4 tires must be properly inflated. Refer to
the Tire Pressure (page
Leveling from Side to Side
1. Park the machine on a level surface and disengage the
blade-control switch.
2. Engage the parking brake, stop the engine, remove the
key, and wait for all moving parts to stop before leaving
the operating position.
3. Set the height-of-cut lever to the middle position.
4. Carefully rotate the blade so that it is side to side
(Figure 48.
1
4
Figure 48
1. Blade side to side
2. Sail area of the blade
(Figure
(Figure 45).
Checking
before continuing.
Checking
34).
G014630
3
2
4
3. Outside cutting edges
4. Measure from the tip of the
blade to the flat surface
here
5. Measure between the outside cutting edges and the flat
surface
45).
Note: If both measurements are not within 5 mm
(3/16 inch), an adjustment is required; continue with
this procedure.
6. Move to the left side of the machine.
7. Loosen the side locking nut.
8. Raise or lower the left side of the mower deck by
rotating the rear nut
Note: Rotate the rear nut clockwise to raise the mower
deck; rotate the rear nut counter-clockwise to lower
the mower deck.
1. Hanger bracket
2. Side locking nut
9. Check the side-to-side adjustments again. Repeat this
procedure until the measurements are correct.
10. Continue leveling the deck by checking the front-to-rear
blade slope; refer to
Slope (page
38
(Figure 48.
(Figure 49).
Figure 49
3. Rear nut
Adjusting the Front-to-Rear Blade
39).