Great Plains NTA1300 Operator Manual - Manual (Page 17)

15 5/26/2006 NTA 1000 and NTA 1300 148-528M
Great Plains Mfg., Inc. Operating Instructions
Figure 8
Pivot Lock Tube
Figure 9
Pivot Lock Tubes Unsecured–Normal Field Position
Figure 10
Pivot Lock Tubes Secured–Transport Position
10555
Opener Operation
Never back up with openers in ground. If you do, check all
openers to be sure none are clogged or damaged.
For information on seeding depth and opener adjust-
ments, refer to Seeding Depth, “Adjustments,” page 20.
For more information on troubleshooting opener prob-
lems, see “Troubleshooting,” page 27.
Pivot Lock Tubes
Refer to Figure 8
The pivot-lock tubes are behind the stabilizer cylinders on
each side of implement.
Refer to Figure 9
During normal field operation, operate hitch with pivot-lock
tubes unsecured so hitch can pivot and drill openers can
properly track coulters.
Refer to Figure 10
When drilling on steep slopes or while transporting,
secure pivot-lock tubes. To lock tubes, turn tubes so they
are horizontal with hitch frame.
You can adjust spring tension on pivot-lock tubes. Refer to
Pivot Lock Tube Adjustment, “Adjustments,” page 26.
Marker Operation
Optional markers are on their own hydraulic circut. They
operate through a sequence valve which alternates lower
and lift cycles between the right hand and left hand
marker.
Fan Operation
Refer to Figure 11
The selector valve diverts the fan circuit to the fold cylin-
ders. This pertains to the NTA 1300 only.
Transport Lift Cylinders
The transport-lift cylinders are rephasing hydraulic cylin-
ders. After a period of normal use, the cylinders may get
out of sequence. If this happens, the hitch will lift unevenly
or one set of tires will not retract from the soil.
To rephase cylinders, raise drill completely and hold
hydraulic lever on for a few seconds to allow cylinders time
to rephase.
Figure 11
Turn Selector Valve
11880
Fan
Folding
17129
19606