Toro 30403, Руководство оператора

Страница: 19 / 28

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 (
Figure 22 ).
4. Move the lift lever to the F
LOAT
position. Push
a lift arm down until the holes in the lift arm line
up with the holes in the castor arm bracket and
you can insert the height-of-cut rod into the lift
arm pads (
Figure 23 ).
g012229
Figure 23
1. Lift arm 7. Hairpin cotter
2. Castor arm bracket 8. Height-of-cut collar
3. Height-of-cut rod 9. Clevis pin
4. Lift arm pads 10. Hairpin cotter
5. Thrust washers 11. Bolt
6. Clevis pin
5. Secure the lift arm to the castor arm with 2
thrust washers, a clevis pin and a hairpin cotter.
Position the thrust washers between the lift arm
and the castor arm bracket ( Figure 23 ). 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 hairpin cotters (
Figure 23 ).
Position the head of the clevis pin toward the
front of the deck.
10. Install a bolt (1/2 x 3/4 inch) and a washer to the
top of each height-of-cut rod (
Figure 23 ).
Servicing the Bushings in
the Castor Arms
The castor arms have bushings pressed into the
top and bottom of the tube, and after many hours
of operation, the bushings will wear. To check the
bushings, move the castor fork back and forth and
from side to side. If the castor spindle is loose inside
the bushings, the bushings are worn and must be
replaced.
1. Raise the cutting unit so that the wheels are
off of the floor. Block the cutting unit so that it
cannot accidentally fall.
2. Remove the tensioning cap, spacer(s), and
thrust washer from the top of the castor spindle.
3. Pull the castor spindle out of the mounting tube.
Allow the thrust washer and spacer(s) to remain
on the bottom of the spindle.
4. Insert a pin punch into the top or bottom of the
mounting tube and drive the bushing out of the
tube (
Figure 24 ). Also, drive the other bushing
out of the tube. Clean the inside of the tubes
to remove dirt.
g004737
Figure 24
1. Castor arm tube 2. Bushings
19