Leveling The Mower Deck - Toro 74731 Operator's Manual

2. Check the balance of the blade by putting it on a blade
balancer (Figure 51). If the blade stays in a horizontal
position, the blade is balanced and can be used. If the
blade is not balanced, file some metal off the end of
the sail area only (Figure
until the blade is balanced.
1. Blade
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 47-88 N-m (35-65 ft-lb).

Leveling the Mower Deck

Check to ensure the mower deck is level any time you install
the mower or when you see an uneven cut on your lawn.
The mower deck must be checked for bent blades prior to
leveling; any bent blades must be removed and replaced. Refer
to the Checking for Bent Blades procedure before continuing.
The mower deck must be leveled side-to-side first then the
front to rear slope can be adjusted.
Requirements:
•
The machine must be on a level surface.
•
All four tire 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. Move the motion-control levers outward to the P
position, 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 middle position.
4. Carefully rotate the blades so that they are all side to
side (Figure 52).
50). Repeat this procedure
Figure 51
2. Balancer
(Figure
(Figure 49).
36).
2
3
4
1. Blades side to side
2. Sail area of blade
49).
5. Measure between the outside cutting edges and the
flat surface
within 3/16 inch (5 mm), 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.
Checking
ARK
1. Hanger bracket
2. Side locking nut
9. Check the side-to-side adjustments again. Repeat this
procedure until the measurements are correct.
40
G005278
1
Figure 52
3. Outside cutting edges
4. Measure from the tip of the
blade to the flat surface
here
(Figure 52). If both measurements are not
(Figure 53).
Figure 53
3. Rear locking nut
3
2
4