Great Plains 3PD20 User Manual
Great Plains Mfg., Inc.
Installation Instructions
Three-Point Drill
Flat-Fold Markers
Used with:
3PD27 and 3PD30
•
3PD15 and 3PD20 (Old-Style Drill)
•
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 install the flat-fold markers.
These instructions apply to:
113-211A 15-Foot Left-Hand Marker
113-212A 15-Foot Dual Markers
113-208A 20-Foot Left-Hand Marker
113-209A 20-Foot Dual Markers
113-199A 27-Foot Dual Markers
113-195A 30-Foot Dual Markers
Manual Update
Refer to the drill operator’ s manual for detailed information on
safely operating, adjusting, troubleshooting and maintaining the
flat-fold markers. Refer to the parts manual for part identification.
• 3PD27 and 3PD30 Operator’s Manual. . . . . . . . 118-365M-A
• 3PD27 and 3PD30 Parts Manual. . . . . . . . . . . . . . 118-365P
• 3PD15 and 3PD20 Operator’s Manual. . . . . . . . . . 118-262D
• 3PD15 and 3PD20 Parts Manual. . . . . . . . . . . . . . 118-365P
5. On 20-foot drills, mount support arm (14) at dimension
shown using clamp plates (10),1/2-inch u-bolts (11), hex
nuts (12) and lock washers (13).
6. Mount support-arm saddle (18) to support arm with 1/2-inch
u-bolts (17), lock washers (15) and hex n uts (16). T o prev ent
wear when folded, center saddle under the square tube of
second section.
7. Adjust support arm and saddle so second section is parallel
with seed-box lid when marker is folded.
Marker Assembly
15- or 20-Foot Markers
1. Lower drill into field position. From end of each drill box, allow 9 feet of clearance on a 15-f oot drill or 11 f eet of clearance on a 20-foot drill for marker assembly.
2. Mount first marker section (1) on lower 3 1/2-inch frame
tube. Mount marker as close to end of frame as
possible. Mount with 5/8-inch u-bolts (7), hex
nuts (9) and lock washers (8).
3. Remove port plugs from cylinder so you can
extend fold cylinder . Unf old first section and
lift hinge.
4. Align holes in second section (2) with
holes in lift hinge. Bolt sections together
with 5/8-inch bolt (5), lock nut (6), 3/8-inch
shear bolt (4) and lock nut (3). Assemble
sections so stop block on second section
faces up.
11010
8. If necessary, repeat steps
After assembling markers, proceed
to Hydraulic Setup,
to mount other marker.
page 3.
© Copyright 1998 Printed 4/9/04
113-380M
1
Assembly
27- or 30-Foot Markers
1. Lower drill into field position. From end of each drill box, allow 14 feet of clearance on a 27-f oot drill or 16 feet of
clearance on a 30-foot drill for marker as
sembly.
2. Mount first marker section (1) on lower
3 1/2-inch frame tube. Mount with 5/8inch u-bolts (8), lock washers (9) and hex
nuts (10).
3. Remove port plugs from hydraulic cylinder so you can extend f old cylinder. Unfold first section and lift lug.
4. With stop block positioned on top of
second section (2), align holes in
second section with holes in first
section. Bolt sections together with
5/8-inch bolt (6), lock nut (7), 3/8-by-2inch shear bolt (5) and lock nut (4).
5. Place third section (3) over end of
second section and insert hinge pin
(19) through pivot. Secure hinge pin
with 1/4-inch bolt (17) and lock nut (16).
6. Bolt chain-bar weldment (13) to first section with 3/8-by-3 1/4-inch bolt (11) and
lock nut (7). Bolt chain-bar weldment so it
pivots freely.
7. Bolt chain bar (18) to third section with
3/8-by-1 1/2-inch bolt (21) and lock nut (7).
Bolt chain bar so it pivots freely.
8. Connect marker chain (15) to chain bar and chain-bar weldment with 5/16-inch utility clevis (14).
9. With marker disk adjusted for seeding width and disk touching the ground, adjust chain length to remove chain slack.
Make chain-length adjustments at the utility clevis on the
chain-bar weldment.
10. Install 3/8-by-2 1/2-inch stop bolt (12) and lock
nuts (7) so stop bolt extends as little as possible .
Fold marker and adjust stop bolt to tighten chain.
NOTE: Stop bolt must hold tension on marker chain only when the marker is folded.
Stop-bolt should not affect chain tension
when marker is unfolded.
11. Mount support arm (27) to drill frame at
dimension shown. Secure arm to
drill frame with clamp plates (22),
1/2-by-3 1/2-by-6 1/2-inch u-bolts
(23), lock washers (25) and hex
nuts (24). Set support-arm height at
about 24 1/8 inches above drill frame.
12. Mount support-arm saddle (34) to support arm with 1/2-by-2-by-3-inch u-bolts
(30), lock washers (28) and hex n uts
(29). To prevent w ear when folded, cen
ter saddle under marker chain and
square tube of second section.
13. Adjust height of support arm so second section is parallel
with seed-box lid when marker is folded.
14. Fold marker into transport position. With marker chain in slot
of the support-arm saddle, take up chain slack by threading
3/8-inch stop bolt out against the chain-bar weldment. Lock
stop bolt in place with hex nuts.
15. Repeat steps to mount other
marker. After assemb ling
markers, proceed to Hy
draulic Setup, page 3.
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Great Plains Mfg., Inc.
Three-Point Drill Flat-Fold Markers 113-380M 4/9/04
2
11008
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