Great Plains NTA 2000 Assembly Instructions - Manual (Page 2)

2 NTA 2000 148-612M 8/4/2005
Great Plains Mfg., Inc.
Assembly
chain (8). Coming in through the top install the bolt into
the hole in the chain slot plate (5). Position the chain
so the second link fits into the slot at the top of the
plate with the rest of the chain hanging down. Secure
bolt with 7/16" lock nut (12). Repeat step to install
chain on right hand plate.
5. Fasten the loose end of the left chain (8) to the left
center pull arm (1) using a 7/16" x 2 3/4" bolt (13) and
7/16" nut (14). Insert the bolt through the fifth link on
the chain. Repeat step for right hand chain.
Note: Use this link as a starting point only. You may have to
use another link to adjust for proper height when drill is in the
raised position. Refer to page 3 for proper adjustment.
6. Prop or hold up both center pull arms (1). Slide the
harrow center frame assembly (15) under the arms
until the center tube lines up with the mounting brack-
ets on the ends of the arms. (Be sure the front of the
assembly is facing the front of the drill.) Align the as-
sembly so it is centered evenly between both center
pull arms. Hold in place with 1/2" x 2 1/16" U-bolts (16)
and 1/2" lock nuts (17). Do not tighten at this time.
7. Prop or hold up the left hand wing pull arms (2). Slide
the harrow wing frame assembly (18) under the arms
until the center tube lines up with the mounting brack-
ets on the ends of the arms. (Be sure the front of the
assembly is facing the front of the drill.) Align the as-
sembly so it is centered evenly between both center
pull arms. Hold in place with 1/2" x 2 1/16" U-bolts (16)
and 1/2" lock nuts (17). Do not tighten at this time. Re-
peat steps to install right hand assembly.
Note: Before tightening U-bolts on the harrow frame assem-
blies refer to page 3 or 4 for proper adjustments.
Assembly Instructions
!
CAUTION!
Before working around the drill make sure it is properly hitched to the
tractor and that the tractor is turned off and the transmission is in the
park position. Make sure the drill is on level ground and the coulter
and opener wing frames are in their unfolded position. Make sure the
drill is lowered. For proper hitching and unfolding instructions refer to
the operators manual for this drill.
Note: These instructions explain how to install the harrow option
for package 148-611A. The instructions will be the same for
package 116-241A, except the U-bolt sizes, tines and tine tubes
will be different.
Refer to Figure 1
1. Install one of the center pull arms (1) to the left side of
the drill center pivot frame weldment with a 1/2" x 3
1/4" bolt (3) and 1/2" lock nut (4). Tighten bolt and re-
peat step to install the pull arm on the right side. (Do
not over tighten bolt, thus restricting arm movement).
2. Install two of the wing pull arms (2) to the left wing tool
bar using 1/2" x 3 1/4" bolts (3) and 1/2" lock nuts (4).
Tighten bolts and repeat step to install pull arms on
the right wing tool bar.
3. Attach one of the chain slot plates (5) to the square
tubing on the left hand side of the lower platform (see
insert drawing) using 1/2" x 3" U-bolts (6) and 1/2"
nuts (7). Slide plate as far back on the square tube as
possible and tighten U-bolts. Repeat step for right
hand plate.
4. Assemble one 7/16" flat washer (10) then one 1/2"
hardened flat washer (11) on one of the 7/16" x 1 1/2"
bolts (9). Insert bolt with washers into an end link in
Figure 1
Attaching Harrow to Drill
19903
19904