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Important: The curved part of the blade must
be pointing upward toward the inside of the
mower to ensure proper cutting.
2. Install the anti-scalp plate and blade bolt (Figure 75).
1. Spindle
2. Sail Area of Blade
3. Torque the blade bolt to 85-110 ft-lb (115-150 N⋅m).
Correcting Mower Deck
Mismatch
If the cut is uneven across the mower swath, correct
it as follows:
1. Position the machine on a level surface on the shop
floor.
2. Set the cutting unit to the desired height of cut,
move the throttle lever to the Slow position, stop
the engine, set the parking brake, and remove the
ignition key.
3. Check and adjust front and rear tractor tire pressure;
refer to Checking Tire Pressure.
4. Check for bent blades.
5. Remove the covers from the top of the cutting units.
6. Rotate the blade on each spindle until the ends face
forward and backward.
Figure 75
3. Anti-scalp plate
4. Blade Bolt
7. Measure from the floor to the front tip of the cutting
edge.
8. Adjust the jam nuts securing the deck yokes/chains
to the mower deck until the mower deck is level.
1. Chain
2. Yoke
Adjusting the Mower Deck
Pitch
Cutting unit pitch is the difference in height-of-cut from
the front of the blade plane to the back of the blade
plane. Toro recommends a blade pitch of approximately
5/16 inch (8 mm). That is the back of the blade plane is
5/16 inch (8 mm) higher than the front.
1. Position the machine on a level surface on the shop
floor.
2. Set the cutting unit to the desired height-of-cut,
move the throttle lever to the Slow position, stop
the engine, set the parking brake, and remove the
ignition key.
3. Rotate the center blade so that it points straight
forward.
4. Using a short ruler, measure from the floor to the
front tip of the blade.
5. Rotate the same blade tip to the rear and measure
from the floor to the tip of the blade at the rear of
the deck.
6. Subtract the front dimension from the rear
dimension to calculate the blade pitch.
7. Adjust the jam nuts securing the rear deck
yokes/chains to raise the rear of the deck so that the
blade pitch is set to 5/16 inch (8 mm) (Figure 77).
58
Figure 76
3. Jam nut
4. Mower deck
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