Great Plains P18140C Operator Manual - Manual (Page 30)

8-10m Press Range
Operating Instructions
30
4.18 Checks
The working quality depends on the adjust-
ments and checks made prior to and during
work, as well as on regular servicing and
maintenance of the machine.
Before beginning work it is therefore impor-
tant to carry out any necessary servicing
and to lubricate the machine as required.
Checks prior to, and during
work:
• Is the machine correctly hitched up and the
coupling device locked?
• Have the hydraulic lines been connected
according to the colour coding?
• Is the machine in a level operating position
and the working depth set correctly?
Working Elements
• Are the discs and other cultivation tools in
a serviceable condition?
• Are the scrapers still operable, so that the
rolls do not jam?
4. Adjustment / Operation
4.17 Using Shims
Before using shims to alter machine settings
ensure the machine is stationary and the
tractor is turned off with the keys out. Ensure
that all operators are clear of the machine
and that no load is being held on any existing
shims in the cylinder.
To fit the shims hold them by the handle and,
using a firm action, clip them onto the rod
as shown in Fig. 4.12. They are removed by
using a finger to pull firmly on the handle.
Check the cylinders for damage
and debris before fitting shims.
Only attempt to add or remove
shims using the handle. Trying to
manipulate shims using the jaws
could result in injury.
When changing machine settings
ensure both sides of the machine
mirror each other. The left hand
cylinder should contain the same
amount of shims as the right, for
example. Failure to do this could
result in damage to the machine.
Fig. 4.12: Shims
 Switch off the tractor. Swing the jack
into the work position.
 Switch the tractor back on and operate
the hydraulic jack to raise the drawbar
from the jaw of the tractor and remove
the pin.
 If the machine is being left folded on
the jack ensure the catcher arm tap
(YELLOW) is left closed. Depressurise
all hydraulic lines and remove pipes
and cables from tractor.
 Slowly draw the tractor forward.