Great Plains 20’ CPH Operator Manual - Manual (Page 5)

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3 3/31/04 Great Plains Mfg., Inc.
Section 3 Basic Operation
1994 20’ CPH Coulter Tool Bar Brace Assembly 149-721M
Read and understand the owner’s manual for your Cen-
ter Pivot Hitch. A basic understanding of how the hitch
works will aid in the assembly and setup of your Tool Bar
Brace assemblies.
The following information is general in nature and was
written to aid the operator in preparation of the tractor
and hitch for use, and to provide general operating pro-
cedures. The operator’s experience, familiarity with the
machine and the following information should combine
for efficient hitch operation and good working habits.
Having all the parts and equipment readily at hand will
speed up your assembly task and make the job as safe
as possible.
Pre-Assembly Checklist
Check Reference
All major components Section 2
Page 5
Fasteners that were shipped with the
package.
NOTE: Some of the hardware from the
factory may have been installed in the
location where it will be used. Section 2
Page 5
If you are unsure where a fastener is
used, use the parts section of this man-
ual to identify it. Be sure the part gets
used in the correct location. Parts Manual
Assembling The Coulter Tool Bar
Brace Assembly
For the following assembly instructions, refer to the
illustration on page
4 section 4.
1. Set the Center Pivot Hitch down with the coulters
just touching the ground, in a clear level area.
2. Assemble the right & left hand tool bar brace (#1) to
the tool bar support end cap on the Center Pivot
Hitch with the 3/4" x 2" long bolts (#2), 3/4" lock
washers (#3), and the 3/4" hex nuts (#4). DO NOT
tighten bolts yet.
3. Assemble the tool bar support weldment (#5) to the
end of the tool bar support brace (#1) with the 1 1/4"
x 2 1/2" long bolt (#10) and lock washer (#9). DO
NOT tighten bolts yet. The tool bar support weld-
ment (#5) is designed to be turned two different di-
rections to keep from interfering with coulter clamps
on the various coulter row spacings. Turn the tool
bar support weldment as needed to assemble it to
the support brace and miss the coulter clamps. On
some row spacings, the access to the 1 1/4" x 2 1/2"
long bolt may be limited because of coulter loca-
tions. In these situations, preassemble the tool bar
support weldment (#5) to the tool bar brace (#1).
4. Fasten the tool bar support weldments (#5) to the
coulter tool bars with the 5/8" x 4 1/32" x 7" u-bolts
(#6), 5/8" lock washer (#7), and the 5/8" hex nut
(#8). DO NOT tighten bolts yet.
5. Tighten the 1 1/4" x 2 1/2" long bolts first. Second,
tighten the 3/4" x 2" long bolts at the top of the tool
bar brace. Tighten the nuts on the 5/8" x 4 1/32" x 7"
long u-bolts last.
Post-Assembly Checklist
Check
“Safety Rules” in this Manual & in the CPH & drill Manuals.
Drill & Hitch; initially and periodically for loose bolts, pins,
and chains.
All working parts are moving freely, bolts are tight and cotter
pins are spread.
CAUTION! Be familiar with the term NEGATIVE TONGUE
WEIGHT. Be aware of the special precautions you should
take when working with an implement that can develop Neg-
ative Tongue Weight.
Section 3
Basic Operation
!
CAUTION!
This Center Pivot Hitch should NEVER be pulled faster than
20 miles per hour!
The Coulter Tool Bar Brace Assembly is only needed for
extremely hard soil conditions where some upward flex
may occur on the ends of a 20’ Coulter Tool Bar. This as-
sembly is not needed and will not fit on a Center Pivot
Hitch with coulter tool bar weight brackets assembled on
the ends of the coulter tool bars.On 20’ units an operator
can install Coulter Tool Bar Weight Bracket or Coulter
Tool Bar Brace Kit, but not both.