Separating the Cutting Unit
from the Traction Unit
1.
Position the machine on a level surface.
2.
Lower the cutting unit to the floor, move the lift
lever to the F
LOAT
position, engage the parking
brake, put the traction pedal in neutral, set the
PTO lever in the O
FF
position, shut the engine
off, and remove the ignition key.
3.
Remove the capscrews and locknuts securing
the ball joint mounts to the castor arms on the
cutting unit (
).
g010793
Figure 19
1.
Castor arm
2.
Ball joint mount
4.
Roll the cutting unit away from the traction unit,
separating the male and female sections of the
PTO shaft (
).
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 gearbox on the cutting
unit.
g010552
Figure 20
1.
PTO shaft
Servicing the Bushings in
the Castor Arms
The castor arms have bushings pressed into the top
and bottom portion of the tube which, after many
hours of operation, will wear. To check the bushings,
move the castor fork back and forth and from side to
side. If the castor shaft is loose inside the bushings,
the bushings are worn and must be replaced.
1.
Raise the cutting unit so that the wheels are off
the floor and block it so that it cannot 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 (
). Also, drive the other bushing
out of the tube.
g010828
Figure 21
1.
Front castor arm tube
2.
Bushings
5.
Clean the inside of the mounting tubes to
remove any dirt.
6.
Apply grease to the inside and outside of the
new bushings.
19
