Great Plains 20 Series DrillS Assembly Instructions User Manual
Assembly instructions, General information, Folding markers
1
Installation Instructions
Great Plains Mfg., Inc.
© Copyright 1999 Printed 4/9/04
Used with:
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Before You Start
Beginning on page 4 are detailed lists of parts included in the
marker packages. Use these lists to inventory parts received.
Assembly Instructions
Assembling Markers
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 6-by-6-inch frame tube.
Mount plate so edge (2) is 3 1/2 inches (8.89 cm) from end of
drill frame. On 20-foot drills, also install marker mount sup-
port (3) onto marker mount as shown. Secure mount with
3/4-by-6-by-7 3/4-inch u-bolts (4), lock washers (5) and nuts
(6).
3.
Remove port plugs on cylinder and carefully unfold first
marker section. Rotate hinge section (7) into a horizontal
position.
4.
Align holes of break-away section (8) with holes in hinge
section. Bolt sections together with stop block (9) on break-
away section facing up. Use 5/8-inch pivot bolt (10), lock nut
(11), 3/8-by-1 3/4-inch, grade 2 shear bolt (12) and lock nut
(13).
IMPORTANT: Be sure shear bolt is a grade 2 bolt. Failure
to use a grade 2 bolt can cause marker damage.
5.
Repeat steps for other marker.
6.
Adjust marker disks so they are square with ground when
markers are lowered in field position. Refer to Marker Ad-
justments, "Adjustments," in operator’s manual.
113-477M
12, 15 and 20 Series Drills
Folding Markers
1200, 1210 and 1220
1500, 1510 and 1520
2000, 2010 and 2020
General Information
These instructions explain how to install the markers. The mark-
ers 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.
These instructions apply to:
113-490A
15-FOOT DUAL FF NO-TILL MKR W/SEQ
113-491A
20-FOOT DUAL FF NO-TILL MKR W/SEQ
113-457A
20-FOOT DUAL NO-TILL HYD FF MKR-94
Manual Update
Refer to the drill operator’s manual for detailed information on
safely operating, adjusting, troubleshooting and maintaining the
markers. Refer to the parts manual for part identification.
• 12, 15 and 20 Series Drill Operator’s Manual . .118-389M-A
• 12, 15 and 20 Series Drill Parts Manual. . . . . . . . .118-389P
Figure 1
Marker Assembly
12238
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!
!!