Great Plains AS20 Operator Manual - Manual (Page 12)

AS15 and AS20 Planting System 148-153M 4/14/05 10 Great Plains Mfg., Inc.
Section 2 Assembly Instructions & Set-Up
Your All Seeds Hitch comes equipped with a hitch safety
chain. The safety chain should be securely attached to
the All Seeds Hitch and the tractor drawbar whenever
towing or planting.
Remove the jack from the storage position on the front
hydraulic tongue as shown in Figure 2-3 and place in the
transport position on top of the coulter tool bar support
tube as shown in Figure 2-4.
Jack In Storage Position
Figure 2-3
12084
Jack In Transport Position
Figure 2-4
12310
Tractor Hydraulic Hookup
The tractor should be equipped with 4 remote outlets (2
pair). The 1/2" hoses from the front tongue cylinder con-
nect to one set of tractor remote outlets. The 1/2" hoses
from the transport lift cylinders connect to another set of
tractor remote outlets.
Bleeding The Hydraulic Systems
!
WARNING!
Escaping fluid under pressure can have sufficient force to pen-
etrate the skin. Check all hydraulic lines and hoses before ap-
plying 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
fluids in the tissue must be surgically removed within a few
hours or gangrene will result.
Front Hydraulic Tongue Cylinder
1. Raise and safely support hitch, transport frame and
front tongue in order to unpin the rod end of the
tongue cylinder. Block, wire or otherwise safely sup-
port the cylinder so when the rod end is fully extend-
ed it does not contact anything.
2. Cycle the cylinder completely in and out a minimum
of three times to purge the air from the cylinder and
hoses.
3. Fully extend the cylinder to repin the rod end.
4. Recheck the tractor reservoir and fill to its proper
level.
Hydraulic Lift System
NOTE: Check the hydraulic fluid in the tractor reser-
voir and fill to the proper level. Add fluid to the sys-
tem as needed. A low reservoir level may draw air
back into the system, causing jerky or uneven cylin-
der movement. Front tongue cylinder capacity is 0.5
gallons.
NOTE: The SAE O-ring and JIC 37
°
flare type hose
connections DO NOT require sealant for reconnect-
ing. They DO NOT require high torque for a good
seal. Whenusing sealant on pipe threads the friction
between the threads is reduced; therefore, be cer-
tain not to over tighten causing damage to the cylin-
der port or fitting.
NOTE: Check the hydraulic fluid in the tractor reser-
voir and fill to the proper level. Add fluid to the sys-
tem as needed. A low reservoir level may draw air
back into the system, causing jerky or uneven cylin-
der movements. Transport lift hydraulic capacity is
approximately 2 gallons.