Great Plains 2020P User Manual
Great Plains Mfg., Inc.
Installation Instructions
3-Point Precision Seeding System
Marker Option
Used with:
• 1510P and 1520P
• 2010P and 2020P
General Information
When you see this symbol, the subsequent instructions and
warnings are serious - follow without exception. Your life and
!
!
the lives of others depend on it!
These instructions explain how to install the Marker Option on the 15 and 20 foot 3-point Precision
Seeding Systems.
The markers fold and unfold hydraulically for field
operation. The marker disks leave a line for the
drill operator to follow on the next field pass. Markers are mounted on the drill frame and require two
hydraulic remote valves on the tractor. A sequence valve is available so markers can be
operated on one hydraulic circuit.
These instructions apply to:
113-691A 15P Single LH Marker Package
113-692A 15P Dual Marker Package
113-693A 20P Single LH Marker Package
113-694A 20P Dual Marker Package
Assembly Instructions
Marker Assembly
Refer to Figure 1
.
Manual Update
Refer to the 3-Point Precision Seeding System
operator’s manual for detailed information on
safely operating, adjusting, troubleshooting and
maintaining the Marker Option. Refer to the parts
manual for part identification.
118-732M 1510P and 1520P Operator’s
Manual
118-732P 1510P and 1520P Parts Manual
118-740M 2010P and 2020P Operator’s
Manual
118-740P 2010P and 2020P Parts Manual
Before You Start
Page 7 is a detailed listing of parts included in the
Marker Option package. Use this list to inventory
parts received.
15 foot A = 7 3/8 inches
20 foot A - 6 1/2 inches
1. Lower drill into field position. Allow 9 feet on
each end of a 15-foot drill and 11 feet on each
end of a 20-foot drill for marker assembly.
2. Mount first marker section (1) on drill 7 x 5
inch frame tube (2). Mount marker at the end of
the drill using dimension "A" as a starting point.
Some row spacings will require the mount to
be adjusted in or out from this starting point.
3. Secure marker section with 5/8 inch u-bolts
(3), lock washers, washers and nuts (4). and
1/2 inch u-bolts (5), lock washers and nuts (6).
NOTE: On the 20-foot drill with 15 inch row spacing, the last opener is bolted to the marker mount
using 5/8 x 6 1/2 inch straight bolts (7).
© Copyright 2000 Printed
1/3/2000
Figure 1
First Marker Section Assembly
113-688M
18413
Marker Option
2
Great Plains Mfg., Inc.
Refer to
Figure 2
4. Remove port plugs on cylinder and carefully
unfold first marker section. Rotate hinge section (7) into a horizontal position.
5. Align holes of break-away section (8) with
holes in hinge section. Bolt sections together
using a 5/8-inch pivot bolt (9), lock nut (10), 3/
8-by-1 3/4-inch, grade 2 shear bolt (11) and
lock nut (12).
IMPORTANT: Be sure shear bolt is a grade 2
bolt. Failure to use a grade 2 bolt can cause
marker damage.
Marker Breakaway Assembly
6. Repeat steps for other marker.
7. To adjust markers, refer to Marker Adjust-
ments in the operator’s manual.
Figure 2
18414
113-688M 3/3/2006
Great Plains Mfg., Inc.
Carrier Assembly for 20P drill
To assemble carrier onto drill frame, refer to Figure 3
.
1. Assemble transport-carrier mount (1) on drill
frame. Center mount 49 inches from outside
end of drill frame. Use 1/2 x 6 1/32 x 7-inch
u-bolts (2), flat washers, lock washers and
hex nuts (3). Slide mount forward so its leading edge is about 2 1/4 inches ahead of front
edge of drill frame tube.
2. Bolt transport carrier (4) to transport-carrier
mount so top surface of saddle (5) is about
29 1/4 inches above top of drill frame tube.
Secure transport carrier with 1/2 x 2 x 3-inch
u-bolts (6), lock washers and hex nuts (7).
3. After installing and bleeding hydraulics, trans-
port carrier may require further adjustment.
When folded, the second marker section
should rest in the transport-carrier saddle.
Installation Instructions
3
3/3/2006
Figure 3
18415
Carrier Assembly
113-688M
Marker Option
4
Installing Marker Hydraulics
Without Sequence Valve
Refer to Figure 4.
1. Install elbow fittings (1) in cylinder ports.
2. At rod end of each cylinder, install an adaptor
Great Plains Mfg., Inc.
(2) into elbow fitting. Install a needle valve (3)
in adaptor.
3. Connect hydraulic hoses to fittings and route
hydraulic hoses to tractor outlets. Route hydraulic hoses through transport-carrier mount
at cutout. Use black cable ties to secure hydraulic hoses to drill frame.
4. Using orange cable ties, secure a plastic hose
label
, see Figure 5, to each pair of hydraulic
hoses near tractor outlets.
5. Proceed with "Bleeding Marker Hydraulics"
on page 6.
Needle Valve Assembly
Plastic hose
label
Figure 4
Cable tie
17642
Figure 5
Hose label and cable tie
113-688M 3/3/2006
17641
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