Operator's Manual

20
Mounting the Cutting Unit to
the Traction Unit
1. Position the machine on a level surface and shut the
engine off.
2. Move the cutting unit into position in front of the
traction unit.
3. Slide the male PTO shaft into the female PTO shaft
(Fig. 24).
4. Move the lift lever to the Float position. Push a lift arm
down until the holes in the lift arm line up with the
holes in the castor arm bracket and the height of cut rod
can be inserted into the lift arm pads (Fig. 25).
1
2
3
4
5
67
8
9
10
Figure 25
1. Lift arm
2. Castor arm bracket
3. Height of cut rod
4. Lift arm pads
5. Thrust washers
6. Clevis pin
7. Hair pin cotter
8. Height of cut collar
9. Clevis pin & hair pin
10. Capscrew & washer
5. Secure the lift arm to the castor arm with (2) thrust
washers, a clevis pin and a hair pin cotter. Position the
thrust washers between the lift arm and the castor arm
bracket (Fig. 25). Insert end of cotter pin into the slot in
the castor arm tab to retain cotter pin.
6. Repeat the procedure on the opposite lift arm.
7. Start the traction unit and raise the cutting unit.
8. Push down on the rear of the cutting unit and insert the
height of cut rods through the lift arm pads.
9. Install the height of cut collars onto the height of cut
rods and secure with the clevis pins and hair pin cotters
(Fig. 25). Head of clevis pin to be positioned toward the
front of the deck.
10. Install a 1/2 x 3/4” capscrew and a washer to top of
each height of cut rod (Fig. 25).
Adjusting the Cutting Unit
Pitch
Measuring the Cutting Unit Pitch
Cutting unit 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 1/4 in. (6 mm). That is the
back of the blade plane is 1/4 in. (6 mm) higher than the
front.
1. Position the machine on a level surface on the shop
floor.
2. Set the cutting unit to the desired height-of-cut.
3. Rotate 1 blade so that it points straight forward.
4. Using a short ruler, measure from the floor to the front
tip of the blade. Rotate the blade tip to the rear and
measure from the floor to the tip of the blade.
5. Subtract the front dimension from the rear dimension to
calculate the blade pitch.
6. Loosen the jam nuts on the bottom of the height-of-cut
rods (Fig. 26).
1
2
Figure 26
1. Height-of-cut rod 2. Jam nut
7. Rotate the height-of-cut rods to raise or lower the rear
of the cutting unit and attain the correct cutting unit
pitch.
8. Tighten the jam nuts.