Adjusting Deck Pitch - Toro 30373 Operator's Manual

2. Slide the shafts out of the lower bracket holes, align
the rollers with the top holes, and install the shafts.
3. Install the cotter pins to secure the assemblies.
Figure 12
1. Internal rollers
Adjusting the Front Gage Wheel
Note: If cutting unit is to be used in the 1 in. height-of-cut
setting, cutting unit gage wheels must be positioned in the
highest position.
1. Remove the bolt and nut securing the gage wheel to
the cutting unit brackets.
Figure 13
1. Gage wheel
2. Align roller, tube and spacer with top holes in brackets
and secure with bolt and nut.
Adjusting the Rear Gage Wheel
Note: If cutting unit is to be used in the 1 in. height-of-cut
setting, cutting unit gage wheels must be positioned in the
highest position.
1. Adjust gage wheels by loosening locking hub,
positioning gage wheel support at desired height and
re-tightening locking hub. Make sure gage wheel
support pins are positioned in holes in deck.
2. Roller shaft
10
Figure 14
1. Gage wheel
2. Gage wheel support

Adjusting Deck Pitch

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 .25 inches. That is the back
of the blade plane is .25 inches higher than the front.
1. Position machine on a level surface on shop floor.
2. Set deck to the desired height-of-cut.
3. Rotate (1) blade so it points straight forward.
4. Using a short ruler, measure from floor to front tip of
blade. Then, measure from floor to rear tip of blade.
5. Subtract the front dimension from rear dimension to
calculate your pitch.
6. To adjust pitch, start tractor and raise deck to highest
possible position and turn off engine.
7. Loosen jam nuts on top or bottom of height-of-cut
chain U-bolt (Fig. 15).
Figure 15
1. Height-of-cut chain
2. U-bolt
8. Adjust other set of nuts to raise or lower rear of deck
and attain correct deck pitch.
9. Tighten jam nuts.
10. Lower deck.
Note: If desired deck pitch cannot be attained, relocate
rear height of cut pins (Fig. 15) to a lower or higher
setting.
3. Locking hub
3. Rear height of cut pin