Great Plains PH-20 Operator Manual - Manual (Page 24)

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Section 3 Adjustments
PH-15, PH-20, PFH-15 and PFH-20 Precision Fertilizer Hitch 148-365M 12/29/2011
Great Plains Mfg., Inc.
Leveling Adjustment
After setting lock plate to position that matches your field
conditions, adjust top link so drill runs level in the field. Re-
fer to Figure 3-8.
1. With drill box half-full of seed, lower drill and coulters
into field position in the field.
2. Observe drill and hitch from the side. The top of drill
box (1) should be parallel with the ground.
3. If necessary, adjust level link. Raise drill and hitch, un-
lock lock plate and unpin level link (2) from hitch. Loos-
en jam nut (3) and turn eye bolt to shorten or lengthen
link as necessary.
4. Repin link, lower drill and coulters and recheck top of
drill box. When drill box is parallel with ground, tighten
jam nuts.
Figure 3-8
Leveling Adjustment
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