Mounting The Cutting Unit To The Traction Unit - Toro 30722 Groundsmaster 300 Operator's Manual

Danger
If the engine is started and the PTO shaft is
allowed to rotate, serious injury could result.
Do not start the engine and engage the PTO lever
when the PTO shaft is not connected to the gear
box on the cutting unit.
4. Disconnect the spring from the lift cylinder cotter pin.
Remove the cotter pins and clevis pins securing the lift
chains to the lift arm.
Warning
The right-hand push arm is spring-loaded to about
100 lb. (445 N) and the left-hand push arm is
spring-loaded to about 150 lb. (667 N). Sudden
release of the push arm could result in injury.
Another person is needed to push the arm down.
5. Have another person push down on the right push arm
while you remove the capscrews, flat washers, lock
washers, and nuts securing the ball joint mount to the
castor arm on the cutting unit (Fig. 26). Now the other
person can carefully allow the push arm to move
upward, which will gradually release the 100 lb.
(445 N) of spring load.
6. Have another person push down on the left push arm
while you remove the capscrews, flat washers, lock
washers, and nuts securing the ball joint mount to the
mount bracket on the cutting unit (Fig. 27). Now the
other person can carefully allow the push arm to move
upward, which will gradually release the 150 lb.
(667 N) of spring load.
Figure 27
1. Left-hand push arm
2. Capscrew and flat washer
3. Flange locknut
4. Ball joint mount
5. Castor arm
6. Ball joint
7. Jam nut
18
7. Roll the cutting unit away from the traction unit.
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.
Warning
The right-hand push arm is spring-loaded to about
100 lb. (445 N) and the left-hand push arm is
spring-loaded to about 150 lb. (667 N). Sudden
release of the push arm could result in injury.
Another person is needed to push the arm down.
3. Slide a large flat washer (1/2 in.) onto both capscrews
(7/16 x 3 in.).
4. Have another person carefully push down on the
right-hand push arm until the holes in the ball joint
mount line up with the holes in the castor arm. Secure
the ball joint mount to the castor arm with 2 capscrews
with large flat washers, a flat washer (7/16 in.), 2 lock
washers, and nuts (7/16 in.). The heads of the capscrews
and large flat washers must be on the outside of the
castor arm.
5. Slide the flat washers (7/16 in.) onto the 2 capscrews
(7/16 x 3 in.).
6. Have another person carefully push down on the
left-hand push arm until the holes in the ball joint
mount are in line with the holes in the mount bracket on
the cutting unit. Immediately slide a 4 x 4 in. (102 x
102 mm) block of wood between the top of the push
arm and the underside of the chassis
Warning
Make sure that the wooden block does not
accidentally slip out.
7. Secure the ball joint mount to the mount bracket with 2
capscrews, flat washers, and flange locknuts (7/16 in.).
The head of the capscrews and flat washers must
contact the ball joint mount.
8. Connect the PTO shaft to the gear box with a roll pin
and 2 capscrews and nuts, install the shield, and connect
the lift chains to the lift arm; refer to Connecting the
PTO Shaft and Installing the Lift Chains, page 13.