Toro GrandStand 74574, Operator'S Manual

Page: 56 / 68

Correcting the Mower
Quality-of-Cut
If one deck blade cuts lower than the other, correct it as
follows:
Note:
Tire air pressure is critical in these procedures; make
sure the rear tires have the correct pressure.
1. Disengage the PTO and set the parking brake.
2. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
3. Disconnect the spark plug wire(s) from the spark
plug(s).
4. Adjust the tire pressure in the rear tires to 83 to 97 kPa
(12 to 14 psi).
5. Check that the blades and spindle shafts are not bent;
refer to
Checking for Bent Blades (page 54) .
6. Set the height-of-cut to the 7.6 cm (3 inches) position;
refer to
Adjusting the Height-of-Cut (page 25) .
Checking the Mower Deck Side-to-Side
Height
1. Adjust the rear-tire pressure.
2. Ensure that the blades are not bent; refer to Checking
for Bent Blades (page 54) .
3. Position the blades side-to-side.
4. Measure at the B and C locations from a level surface
to the cutting edge of blade tips ( Figure 85 ).
Figure 85
1. Measure from a level
surface 2. Measure the blade at
points
B and C
5. The difference between measurements B and C should
be no more than 6 mm (1/4 inch).
Note:
If it is not correct, refer to Changing the Mower
Deck Side-to-Side Height (page 56) .
Changing the Mower Deck Side-to-Side
Height
Changing the side-to-side height is done by adjusting the
rear-tire pressure and U-plates on the side of the engine deck.
1. Change the rear-tire pressure.
Note:
Do this to the corresponding side that needs
adjustment.
2. Locate the U-plates on the side of the engine deck
(
Figure 86 ).
3. Loosen the U-plate on 1 side, and adjust it up or down
to make the difference between measurements
B and C
no more than a 6 mm (1/4 inch) as shown in Figure 86 .
4. Proceed to Checking the Mower Deck Front-to-Rear
Pitch (page 56) .
g026974
Figure 86
1. U-plate 2. Nuts and bolts
Checking the Mower Deck Front-to-Rear
Pitch
1. Adjust the tire pressure in the rear tires to the correct
specifications.
2. Position 1 blade front-to-rear. Measure at A and B
locations from a level surface to the cutting edge of
the blade tips (
Figure 87 ).
Note:
The mower blade should be 6 mm (1/4 inch)
lower in front at A than in the rear at B .
3. Rotate the blades and repeat for other blades.
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