Great Plains 4336 DH Operator Manual - Manual (Page 22)

18 3323-4336DH Table of Contents Index Great Plains Manufacturing, Inc.
556-100M Table of Contents Index 05/22/2012
Refer to Figure 13
Note: Once the disk is level from side to side, it must be lev-
eled from front to rear. With the self leveling hitch, once
the disk is set for the tractor it will be level at any depth.
27. Again lower the disk to 1-2” above the ground. Adjust
the turnbuckle by loosening the jam nut with turn-
buckle wrench provided on machine. Adjust turnbuckle
by turning the turnbuckle assembly
with turnbuckle
wrench until front blades are about 1/2” closer to the
ground than the rear blades.
28. Re-tighten the jam nut on turnbuckle.
Refer to Figure 14
Note: Once the disk is level from side to side, it must be lev-
eled from front to rear. With the self leveling hitch, once
the disk is set for the tractor it will be level at any depth.
29. Again lower the disk to 1-2” above the ground. Adjust
the hitch cylinder so that the front blades are 1/2”
closer to the ground than the rear blades.
30. The lock valve will lock this length in.
Scraper Adjustment
Refer to Figure 15
31. For rigid scraper adjustment, loosen 1/2” lock nut ,
allow spring to move scraper against blade, retighten
1/2” lock nut .
Note: Running scraper in rigid position away from the disc
blade could result in premature scraper wear and plug-
ging.
32. For self-adjusting operation of spring scrapers, loosen 1/
2” lock nut several turns. This will allow the spring ten-
sion to hold scraper against disc blade.
Figure 13
Hitch Turnbuckle Leveling
42124
3
2
1
1 2
3
Figure 14
Hitch Cylinder Leveling
42114
4
5
4
5
Figure 15
Spring Scraper Adjustment
42116
1
2
3
2
3
2
2