Great Plains 2N-3020 Operator Manual - Manual (Page 35)

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Section 4 Troubleshooting
2/28/08 2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A
Great Plains Mfg., Inc.
Hydraulic marker
functioning improperly Check all hose fittings and connections for air and oil leaks.
Check that the chain on the folding marker is slack when the marker is both fully
folded and unfolded. Add chain slack as necessary. Refer to Marker Adjustments,
“Adjustments,” page 28.
Check tractor hydraulic oil level.
Check all bolts and fasteners.
Check if needle valve is plugged; open valve, cycle markers, and reset the needle
valve if necessary.
Check that switches on control console are set properly. Refer to Field Operation,
“Operating Instructions,” page 17.
Marker disk-blade does not mark Check if the marker folding linkage and chain have enough slack to allow the
marker disk to drop in low spots. Maximum down float should be limited by the
slots at the rod end of the marker cylinder–not by the chain. Add chain slack as
necessary. Refer to Marker Adjustments, “Adjustments,” page 28.
Reverse blade to pull dirt in or throw dirt out depending on soil conditions. Refer to
Disk Adjustment, “Adjustment,” page 29.
An optional smooth blade is available through your Great Plains dealer.
Problem Solution