Great Plains 4000TT Operator Manual - Manual (Page 25)

Great Plains Manufacturing, Inc. Operating Instructions 21
02/11/2014 586-201M
Wing Adjustment (3-Section Wings)
Refer to Figure 11
19. Once the machine is level fore to aft, the wings may be
leveled. Start by unfolding the wings.
20. Set the wings to match the depth of the center. This is
done by adjusting the wing lift turnbuckles in same
manner as the hitch turnbuckle (Shorten turnbuckle to
run shallower, lengthen the turnbuckle to run deeper.
Note: Wing pressure can be affected by the hydraulic down
down pressure feature. If wings are running too high,
increase hydraulic down pressure setting, too low, de-
crease down pressure setting. See “Bypass Valve
Adjustments” on page 25 for initial setup and opera-
tion.
Coulter Spring Adjustment
Refer to Figure 12
21. Coulter springs are preset at 10 inches, giving the
coulters an initial operating force of 400 pounds. This
setting is adequate for many no-till conditions. For
lighter no-till conditions where rocks or other obstruc-
tions are a problem, you can lengthen the springs to
protect the coulters from impact
Note: Setting the coulter spring length shorter than 9.75”
may contribute to premature failure of parts and voids
the warranty. If additional force is needed, add weights
to the implement
Detracker Height Adjustment (Optional)
Refer to Figure 13
Note: Adjust detracker coulter springs
like shown above,
See “Coulter Spring Adjustment” on page 21.
22. The initial height of the detracker coulter assemblies is
1 1/2” - 2” deeper than the machine gangs. To adjust
the height, loosen the set screws
on the clamp
shanks and slide the shank up or down to the
desired height, then re-tighten set screws.
Note: May need to adjust coulter height for different field
conditions.
23. Be sure all bolts are tightened to specs, See “Torque
Values Chart” on page 33.
Spring Length Force
10.25” (26.04cm) 300lbs (136kg)
10” (25.4cm) 400lbs (181kg)
9.75” (24.77cm) 525lbs (238kg)
Figure 11
Wing Adjustment
41805
4
4
Figure 12
Coulter Spring
41729
1
1
Figure 13
Detracker Adjustment
41627
3
2
2
1
1
2
3