Toro GrandStand 74558 Operator's Manual page 52

1. Change the rear tire pressure. Do this to the
corresponding side that needs adjustment.
2. Locate the U-plates on the side of the engine deck
(Figure 78).
3. Loosen the U-plate on one side and adjust it up or
down to make the difference between measurements
B and C no more than a 1/4 inch (6 mm) (Figure 78).
4. Proceed to Checking the Mower Deck Front-to-Rear
Pitch.
1. U-plate
Checking the Mower Deck Front-to-Rear
Pitch
1. Adjust the tire pressure in the rear tires to
specifications.
2. Position one blade front-to-rear. Measure at A and
B locations from a level surface to the cutting edge
of the blade tips (Figure 79).
3. The mower blade should be a 1/4 inch (6 mm) lower
in front at A than in the rear at B. Rotate blades and
repeat for other blades. If it is not correct, proceed
to Changing the Deck Front-to-Rear Pitch.
Figure 78
2. Nuts and bolts
1. Measure blade at points A
and B
Changing the Mower Deck
Front-to-Rear Pitch
Changing the front-to-rear pitch is done by adjusting the
front height-of-cut posts.
1. Place 3 pieces of 2x4 wood under the mower deck
as shown in Figure 80. Stand the 2x4's on the 4 inch
part.
1. 2x4 piece of wood under mower deck
2. Loosen both the front and rear nuts on the
adjustment rods (Figure 81).
3. The weight of the mower deck must be resting on all
three of the 2x4's (Figure 81). The back lip of the
mower deck is built a 1/4 inch (6mm) lower than the
front lip of the mower deck.
4. Tighten both the front and rear nuts.
52
Figure 79
2. Measure from a level
surface
Figure 80