Pivoting The Front Mower Deck Down; Adjusting The Mower-Deck Pitch - Toro Groundsmaster 4000 Operator's Manual

Pivoting the Front Mower
Deck Down
1. With the help of another person, hold the mower
deck upright, remove the hairpin cotter securing
the cable end, and remove the cable from the
pin.
2. Pivot (tilt) the mower deck downward.
3. Store the cable under the operator's platform.
4. Sit on the seat, start the engine, and lower the
mower deck until it is slightly off the floor.
5. Secure the height-of-cut chains to the rear of
the mower deck.
6. Pivot the transport latch upward into position
and secure it with the clevis pin and cotter pin.
Adjusting the Mower-Deck
Pitch
Measuring the Mower-Deck Pitch
Mower-deck 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 8 to 11 mm
(5/16 to 7/16 inch). That is the back of the blade plane
is 8 to 11 mm (5/16 to 7/16 inch) higher than the front.
1. Position the machine on a level surface on the
shop floor.
2. Set the mower deck to the desired height of cut.
3. Rotate a blade to point straight forward.
4. Using a short ruler, measure from the floor to
the front tip of the blade.
5. Rotate the blade tip to the rear and measure
from the floor to the tip of the blade.
6. Subtract the front dimension from the rear
dimension to calculate the blade pitch.
Adjusting the Front Mower-Deck
Pitch
1. Loosen the jam nuts at the top or bottom of the
height-of-cut chain U-bolt
2. Adjust the other set of nuts to raise or lower the
rear of the mower deck and attain the correct
mower-deck pitch.
3. Tighten the jam nuts.
(Figure 108).
1. Height-of-cut chain
Adjusting the Side Mower-Deck
Pitch
Service Interval: Every 800 hours
1. Remove the tensioning cap from the spindle
shaft and slide the spindle out of the caster arm
(Figure 109).
Note:
Position the shims, as required, to raise
or lower the caster wheel until the mower deck
has the correct pitch.
1. Tensioning cap
2. Spacers
3. Shims
2. Install the tensioning cap.
75
Figure 108
2. U-bolt
Figure 109
4. Axle-mounting holes
5. Caster wheel
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