Great Plains AS20 Operator Manual - Manual (Page 31)

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29 4/14/05 Great Plains Mfg., Inc.
Section 6 Troubleshooting
AS15 and AS20 Planting System 148-153M
Section 6
Troubleshooting
All Seeds Hitch Troubleshooting
Problem Possible Cause Solution
Coulters not going deep enough Tongue cylinder is extended to much Retract front tongue cylinder.
To much weight is being use by openers Set drill openers to lightest spring setting.
Not enough weight Add suitcase weights to transport frame
weight brackets (DO NOT add more than
2000#)
Coulters are not set to a high enough initial
spring compression Increase initial compression on individual
coulter springs.
Not enough weight Add coulter tool bar weight brackets & suit-
case weights to ends of coulter tool bars.
(DO NOT add more than 2400#) on coulter
tool bars.
To high of setting on coulters Lower individual coulter spring bars on tool bar.
Drill not tracking behind coulters. Coulters out of alignment with openers Check that coulters and drill openers are
same distance from center.
Pivot locks are not in drilling position Check that pivot locks are in the up position
while drilling. Make sure they were not
manually locked down.
Leaf spring is out of alignment Check for proper adjustment of leaf spring.
Uneven seed spacing or uneven
stand. Drive gauge wheel are not making enough
contact with ground Make sure drill and planter are equipped
with down floating drive gauge wheels
Binding in gauge wheel link Check that gauge wheel link is free to float
in slotted hole
Openers plugging in no-till condi-
tions. Drilling parallel to standing residue Plant at a slight angle to the rows.
Drill is planting too deep. Level link is letting drill tip back to much Adjust top level link so that drill will not tip
back in planting position
To deep of setting on press wheels Move press wheel adjustment on openers
to shallower depth.
To much drill weight for conditions Add cylinder stops to lift cylinders so that
transport tires are on the ground.
Planter planting too deep Level link is pushing planter back too far. Adjust top level link so planter frame is
level.
Too deep of side depth gauge wheel set-
ting. Move side depth wheel adjustment too
shallower setting
Too much weight for conditions.
Planter gauge wheels sinking too deep. Add cylinder stops to lift cylinders so that
transport tires are on the ground.
Transport lift cylinders
loosing lift height Rod end of clevis pin and bushing wear Inspect and replace rod end cylinder clevis
pin and bushings.