Great Plains 1005NT Operator Manual - Manual (Page 15)

13
Section 3 Adjustments
4/12/05 705 and 1005 End-Wheel No-Till Drill 150-213M
Great Plains Mfg., Inc.
Spring Length
Coulter springs are preset at 10 inches, giving coulters an
initial operating force of 400 pounds. This setting is ade-
quate for many difficult no-till conditions.
Figure 3-2
Coulter Spring Length
For lighter no-till conditions where rocks or other obstruc-
tions are a problem, you can lengthen coulter springs to
protect coulters from impact. Refer to the chart below for
spring length and corresponding coulter down force.
NOTE: Resetting coulter-spring length shorter than 9 3/4
inches may contribute to premature failure of parts and
warranty will be voided. If additional force is needed, add
weights to drill.
Opener Depth
Press Wheel Adjustment
Set opener seeding depth by adjusting press-wheel
height. To adjust, first raise drill slightly, then lift and slide T-
handles on top of openers as shown in Figure 3-3. Adjust
all press wheels to same height.
•
For shallower seeding, slide T-handles toward drill.
•
For deeper seeding, slide T-handles away from drill.
Figure 3-3
Press Wheel Depth Adjustment
Opener Mounting
You may need to lower openers that run in tire tracks. To
lower individual openers, connect opener spring bar (1) in
a higher hole (2). Move spring bar to a lower hole (3) to
raise opener.
Figure 3-4
Spring Bar Adjustment
1005 Pounds per Coulter
7 inch 7.5 inch 8 inch 10 inch
Empty Drill 266 275 285 326
Drill with Weight
Brackets
287 297 309 356
Drill with 800
pounds added
337 351 366 429
Drill with 1000
pounds added
350 364 380 447
13990
15659
17450
1
2
3
Spring Length Initial Vertical Coulter Force
10 1/2 Inches 175 pounds
10 1/4 Inches 300 pounds
10 Inches 400 pounds
9 3/4 Inches 525 pounds