Toro 30447 Operator's Manual page 26

Figure 24
1. Skid
Adjusting the Cutting Unit Rollers
The cutting unit rollers should be mounted in the lower
position when operating in height of cuts greater than
2-1/2 inches (64 mm) and in the higher position when
operating in height of cuts lower than 2-1/2 inches (64
mm).
1. Remove the bolt and nut securing the gage wheel to
the cutting unit brackets (Figure 25).
Figure 25
1. Gage wheel
2. Align the roller and spacer with the top holes in the
brackets and secure them with the bolt and nut.
Adjusting the Blade
To ensure proper operation of the cutting unit, there
must be 0.38-0.62 inch (10-16 mm) clearance between
the tips of the wing and center cutting unit blades
(Figure 26).
1. Raise cutting unit so blades are visible and block
center deck section so it cannot fall accidentally.
Wing decks must be horizontal to center cutting
unit.
2. Rotate a center and adjoining wing blade so there
blade tips are aligned. Measure distance between
blade tips, distance should be approximately
0.38-0.62 inch (10-16 mm) (Figure 26).
3. To adjust distance, locate adjuster bolt on rear pivot
link of cutting unit (Figure 27). Loosen jam nut on
adjuster bolt. Loosen or tighten adjuster bolts until
0.38-0.62 inch (10-16 mm) clearance is attained,
then tighten jam nut.
4. Repeat procedure on opposite side of cutting deck.
1. Adjuster bolt
Correcting Mismatch Between Cutting
Units
Due to differences in grass conditions and the
counterbalance setting of the traction unit, it is advised
that a sample area of grass be cut and appearance
checked before formal cutting is started.
1. Set all cutting units to the desired height of cut;
refer to Adjusting the Height of Cut.
2. Check and adjust front and rear tractor tire pressure
to 25-30 psi (172-207 kPa).
3. Check and adjust all castor tire pressures to 50 psi
(345 kPa).
4. Check charge and counterbalance pressures
with engine at high idle using test ports defined
in Hydraulic Systems Test Ports. Adjust
counterbalance setting to be 230 psi (1585 kPa)
higher than charge pressure reading.
5. Check for bent blades; refer to Checking for a Bent
Blade.
26
Figure 26
Figure 27
2. Jam nut