Great Plains V-300F Operator Manual - Manual (Page 20)

V-300, V-300F
148-057M 6/29/2006
18
Connect hydraulic hoses from tongue cylinder to one
tractor remote valve. Connect hoses from transport-lift
cylinders to another tractor remote valve.
Bleeding Hydraulic Systems
For safe and smooth operation, the hydraulic systems
must be free of air. The hydraulic systems should be
bled during initial implement set-up. If they were not
bled, or if you replace a hydraulic component during the
life to the drill, bleed the hydraulics.
Bleeding Tongue Cylinder
1.
Check hydraulic fluid in tractor reservoir and fill to
proper level. Add fluid to system as needed.
Tongue cylinder capacity is 1.89 liters (one-half
gallon).
2. Raise and safely support hitch, transport frame
and front tongue.
3. Unpin rod end of tongue cylinder. Block, wire or
otherwise safely support cylinder so when rod end
is fully extended it does not contact anything.
4. Cycle cylinder completely in and out at least three
times to purge air from cylinder and hoses.
5. Fully extend cylinder and repin rod end.
6. Recheck tractor reservoir and fill to proper level.
Bleeding Transport Lift Cylinders
The transport-lift cylinders are rephasing cylinders and
require a special procedure for bleeding air from the cir-
cuit. Read and follow procedure carefully. Cylinders will
not function properly with air in the hydraulic circuit.
1. Check hydraulic fluid in tractor reservoir and fill to
proper level. Add fluid to system as needed. Trans-
port-lift-cylinder capacity is about 7.57 liters (2 gal-
lons).
2. Jack up and support hitch frame.
Figure 7
Hydraulic Hose Colour Ties
17641
Hydraulic Hook-up
!
WARNING
Escaping fluid under pressure can have sufficient force to pene-
trate the skin. Check all hydraulic lines and hoses before apply-
ing pressure. Fluid escaping from a very small hole can be
almost invisible. Use paper or cardboard, not body parts, to
check for suspected leaks. If injured, seek medical assistance
from a doctor that is familiar with this kind of injury. Foreign flu-
ids in the tissue must be surgically removed within a few hours
or gangrene will result.
Great Plains hydraulic hoses are colour coded to help you
hook-up hoses to your tractor outlets. Hoses that go to the
same remote valve are marked with the same colour.
Refer to Figure 7
To distinguish hoses on the same hydraulic circuit, refer to
plastic hose holder. Connect hose under extended cylinder
to outlet you choose for cylinder extension. Connect hose
under retracted symbol to outlet for cylinder retraction.
Colour Hydraulic Function
Red Transport Lift Cylinders
Blue Tongue Cylinder
22603
Figure 6
Jack in Transport Position
Refer to Figure 6
5. Rotate jack on side of hitch tongue and place in
transport position.