Great Plains NTA2000D Operator Manual - Manual (Page 29)

27 9/13/2006 NTA 2000D 148-632M
Great Plains Mfg., Inc.
17218
Coulter Depth
Adjust coulters to run 1/2” to 1” (13 to 25 mm) below the
drill openers. Coulter depth can be adjusted hydraulically
for all coulters or manually for individual coulters.
Hydraulic Control
Make the following adjustment when drilling in level
ground with the seed box half full.
1. Retract tongue cylinder to transfer the tractor weight to
the coulter toolbar.
Refer to Figure 23
2. Lower the drill and set tongue cylinder so coulters are
at desired depth. Note the setting on cylinder gauge
so you can return to the same depth.
NOTE: Use cylinder gauge only as a reference. Gauge
does not measure actual coulter depth.
Refer to Figure 24
3. Adjust the cylinder spacers on the transport cylinders
so the opener bodies are level with the ground when
the coulters and openers are at the desired depth.
Refer to Figure 25
4. The bottom of the 3 x 3 opener frame tube should be
16 1/2” to 18 1/4” off the ground with the opener at the
desired depth and the opener bodies level with the
ground.
Figure 23
Cylinder Gauge
Levelling Implement 19885
Figure 24
Spacers
19750
Figure 25
Opener Depth
12961