Great Plains 2N-3020 User Manual
Great Plains Mfg., Inc.
Assembly Instructions
24- and 30-Foot, No-Till
Flat Fold Marker Option
Used with:
2N-2410 and 2N-3010 Drills
•
2N-2420 and 2N-3020 Drills
•
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!
General Information
These instructions explain how to assemble, install and setup the
optional hydraulic markers for your two-section, folding no-till
drill. The units are operated hydraulically and hav e a cast hub, tapered roller bearings and a bolt-on notched blade to cut though
heavy residue, leaving a line to f ollo w on the next field pass.
Markers are sold as single or dual units. Dual markers are
equipped with a sequence valve f or easy oper ation.
These instructions apply to:
113-498A 24-Foot No-Till Left-Hand Flat-Fold Marker
113-499A 24-Foot No-Till Dual Flat-Fold Markers
113-500A 30-Foot No-Till Left-Hand Flat-Fold Marker
113-501A 30-Foot No-Till Dual Flat-Fold Markers
Manual Update
Refer to the drill operator’ s manual for detailed information on
safely operating, adjusting, troubleshooting and maintaining the
markers. Refer to the drill parts manual for part identification.
• 2N-2410 and 2N-3010 Operator’s Manual . . . . . . . . . . . . . . . . . . . . 196-126M
• 2N-2420 and 2N-3020 Operator’s Manual . . . . . . . . . . . . . . . . . . . . 196-164M
• 2N-2410 and 2N-3010 Parts Manual . . . . . . . . . . . . . . . . . . . . . . . . 196-126P
• 2N-2420 and 2N-3020 Parts Manual . . . . . . . . . . . . . . . . . . . . . . . . 196-164P
Definitions
Right and left as used in this manual are determined by facing
the direction the machine will travel while in use unless otherwise
stated.
IMPORTANT: A crucial point of information related to the
preceding topic. For safe and correct operation, read and
follow the directions provided before continuing.
NOTE: Useful information related to the
preceding topic.
Before You Start
Pages 8 through 11 are detailed listings of parts included in the
marker kit. Use these lists to inventory parts received.
Assembly and Setup Instructions
Marker Assembly
Refer to Figure 1.
1. Park the drill in an area large enough for folding and unfolding the assembled markers. A single marker will increase
the width of the drill by 15 feet.
1. Unfold and lower the drill. P ark and shut off the tractor.
2. The marker sections are pre-assembled and banded together for shipment. Unpack the shipment and group the assemblies according to right-hand or left-hand.
!
Do not lift the assemblies unassisted. Lifting the assemblies without
mechanical aid could cause severe injury. Use a forklift or hoist to
move the assemblies during installation, or disassemble the assemblies
into smaller pieces before installation.
You could be severely injur ed by a failing assembly. Obey all safety instructions from lifting-equipment manufacturer. Do not walk or place
any body part under the raised sections. Be sure lifting equipment has
enough capacity.
NOTE: These instructions explain how to assemble the marker
if the sections are completely disassembled. If you do not have
adequate lifting equipment, disassemble the sections before
proceeding. If you do have a forklift or hoist large enough to lift
the pre-assembled sections, you can skip many of the following
steps.
3. Install the left-hand marker mount (1) on the left wing (2) of
CAUTION!
!
WARNING!
the drill. Install the mount as close to the outside of the drill
as possible. F asten the mount to the 6-by-8-inch frame tube
using two u-bolts (3), lock washers (4) and nuts (5). Install
the first section of the marker (6) on the mount (1) by pushing the pivot shaft (7) through the pivot holes on the mount
and the first section. Use the bolt (8) and lock nut (9) to secure the shaft.
Mount the left-hand breakaway hinge (10) onto the first section (6) by pushing the pivot shaft (11) through the pivot
holes in each
part. Use the
bolt (8) and lock
nut (9) to secure
the shaft.
© Copyright 1997 Printed 2/19/01
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Figure 1
Marker Assembly
113-502M
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Assembly Instructions
Great Plains Mfg., Inc.
Refer to Figure 2.
4. Pin the base end of the hydraulic cylinder (12) to the marker
mount (1) using the pin and clip (13 and 14). Remove the
plastic plugs from the cylinder ports. Pull the rod end of the
cylinder out to its maximum length. Pin the rod end of the
cylinder to the breakaway hinge using the cylinder pin, flat
washers and cotter pins provided.
5. Install the chain bar (18) on the first section (6) with the bolt
(19) and lock nut (20). The chain bar should pivot freely
around the bolt (19).
6. Install the full-threaded adjustment bolt (21) in the hole directly above the pivot bolt (19). To install, first thread one
lock nut (22) up the entire length of the adjustment bolt.
Next, push the bolt with nut through the hole. Complete the
assembly by threading a second lock nut (22) up the entire
remaining length of the adjustment bolt.
After marker assembly, use the adjustment bolt to control
folding slack. F or no w, turn the adjustment bolt so its head
extends as little as possible to pre vent damage the first time
the marker is folded.
7. Thread a utility clevis (23) through one end of the chain (24).
Pin this clevis to the chain bar (18) using the pin and cotter
pin (25 and 26) provided. Do not fully bend the cotter pin at
this time. Thread a second utility clevis (23) through the last
link at the opposite end of the chain (24). Pin this clevis to
the rounded end of the chain bar (27) using the pin and cotter pin (25 and 26) provided.
Figure 2
Marker Assembly
24- and 30-Foot, No-Till Flat Fold Marker Option 113-502M 4/9/04
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Great Plains Mfg., Inc.
Assembly Instructions
Refer to Figure 1.
8. Attach the second section (28) to the breakaway hinge (10)
with the pivot pin (29). Secure the pivot pin (29) with the bolt
and lock nut (8 and 9). Complete this joint by passing the
grade 5 breakawa y bolt (30) through the holes in the hinge
and second section. Install the lock washer (31) and nut (32)
on the breakaway bolt.
IMPORTANT: The breakaway bolt (30) is a 7/16 x
2 1/4-inch, grade 5 (G.P. # 802-234C). It is identified as a
grade 5 by having three marks on the head. If it breaks, replace it with an equivalent grade 5 bolt to prevent marker
damage.
third section (33) by using the bolt (34) flat washers (35) and
lock nut (36). Do not over tighten this pivot, which would
cause the ears to bend in. The chain bar must pivot freely
around the bolt.
11102
11101
Figure 1
Attaching Second Section
Refer to Figure 1.
9. Attach the third section (33) to the second section (28) by using the pivot pin (29). Secure the pivot pin with the bolt (8) and
lock nut (9).
Fasten the loose end of chain bar (27) to the ears on the
Figure 1
Attaching Third Section
Refer to Figure 1.
10. Slide the fourth-section tube (37) inside the third section
(33). The holes in the fourth section must be to the outside of
the drill and on the top and bottom side as shown. Thread
the jam nuts (38) on the square-headed set screws (39).
Thread the set screws into the nuts welded to the outer end
of the third section (33). Tighten the set screws and jam nuts.
11. Slide the blade and spindle (40) over the f ourth-section tube
(37). Secure the spindle to the tube with bolts (41), flat
washers (42), lock washers (43) and nuts (44). Tighten the
two nuts.
4/9/04
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24- and 30-Foot, No-Till Flat Fold Marker Option 113-502M
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Assembly Instructions
Great Plains Mfg., Inc.
11103
Attaching Fourth Section
Refer to Figure 1.
12. Mount the transport carrier (45) to the box frame on the inside of the gauge-wheel mount. Use the mounting bracket
(52) and secure it with the four 1/2 x 9 1/2-inch bolts (53), the
plate (54), lock washers (55) and nuts (56).
NOTE: On 30-foot drills, y ou may need to reposition the optional
weight brackets to mak e room for the transport carrier.
13. Fasten the carrier to the mount using the two u-bolts
(47).Tighten the u-bolts with the lock washers (48) and nuts
(49) so that the top of the carrier is about 29 3/8 inches
above the top of the frame tube. You may need to re-adjust
carrier height after assembly. Refer to Transport Carrier,
"Setup Adjustments," page 7.
14. Mount the transport saddle (50) on the top of the carrier arm
(45) using the u-bolts (51), lock washers (48) and nuts (49).
On 24-foot drills, position the offset in the saddle to the outside of the drill as shown.
15. To complete assembly for dual markers, repeat steps three
through nine.
Figure 1
Figure 1
11701
Transport Carrier Mounting
16. After all parts are in place, tighten all bolts and u-bolts. Refer
to the torque chart in your drill operator’s manual. Torque ubolts to grade 5 values.
24- and 30-Foot, No-Till Flat Fold Marker Option 113-502M 4/9/04
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