Great Plains 4000TM Operator Manual - Manual (Page 23)

Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 19
10/30/2012 Table of Contents Index 586-288M
Pre-Leveling of Machine
Note: Pre-leveling of machine should be done on a good level surface.
Front to Rear Leveling
Refer to Figure 11
10. Lower machine so front coulter gangs are 1-2” off of
ground. Loosen jam nut with turnbuckle wrench
(stored on rear pegs of hitch). Adjust the turnbuckle
at the front of machine to level it front to back. (Shorten
to bring front down, extend to bring front up).
11. When the front coulter gangs are the same distance off
ground as rear coulter gangs retighten jam nut .
Level Bar Spring Adjustment
Refer to Figure 12
12. To adjust the level bar spring assembly to the preset
position of 26 5/8”, loosen 1 1/2 jam nut with turn-
buckle wrench (stored on rear pegs of hitch).
13. Adjust the 1 1/2 nut until the 26 5/8” dimension is
reached between backside of spring guide and front
side of level bar spring rod plate .
14. Re-tighten the 1 1/2 jam nut to secure.
Wing Adjustment
Refer to Figure 13
15. Once the machine is level fore to aft, the wings may be
leveled. Start by unfolding the wings. Lower the lift cylin-
ders down until coulter gangs are 1-2” off of ground,
both center and wings.
16. Set the wings to match the depth of the center. Start by
loosening jam nut with turnbuckle wrench (stored on
rear pegs of hitch). Turn the turnbuckle to adjust.
(Shorten turnbuckle to run shallower, lengthen to run
deeper), see Refer to Figure 14 or Refer to Figure 15, for
pre-setting the turnbuckles.
Figure 11
Hitch Turnbuckle Adjustment
42260
3
1
2
1 2
3
1
Figure 12
Level Bar Spring
42412
2
3
4
5
1
1
2
3
4
5
2
Figure 13
Wing Adjustment
42247
1
2
1
2