Great Plains NTA1300 Operator Manual - Manual (Page 23)

21 5/26/2006 NTA 1000 and NTA 1300 148-528M
Great Plains Mfg., Inc. Adjustments
Coulter Depth
Adjust coulters to run 13 to 25 mm (1/2 to 1 inches) below
the drill openers. Coulter depth can be adjusted hydrauli-
cally 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 21
2. Set tongue cylinder so coulters are at desired depth.
Note 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 22
3. With coulters and drill lowered to desired seeding
depth, check that hitch frame runs parallel with
ground.
Refer to Figure 23
4. If the hitch frame is not level, remove or replace spac-
ers from transport-lift-cylinder rods until hitch is level.
Figure 3-1
Remove or Install Spacers
Figure 21
Cylinder Gauge
Figure 22
Levelling Implement
Figure 23
Spacers
17218
17854
19434