Great Plains NTA2000D Operator Manual - Manual (Page 36)

34 NTA 2000D 148-632M 9/13/2006
Great Plains Mfg., Inc.
Figure 43
Seed Lock
Figure 44
Variator
Figure 45
High Low Lever
19762
19762
High
Low
Seed-Lok Lock Up
Refer to Figure 43
Optional Seed-Lok firming wheels provide additional
seed-to-soil contact. The wheels are spring loaded and do
not require adjusting. In some wet and sticky conditions
the wheels may accumulate soil.
1. To lock up Seed Lok wheels, hook bottom of hanger
(1) under Seed Lok arm (2) as shown.
Meter
Variator
Drive to the feed mechanism is by two landwheels through
an infinitely adjustable variator which selects the speed of
the feed rollers to increase or decrease the seeding rate.
Feed Roller speed is adjusted by:
a. Operating the lever on the Variator against the
scale which gives stepless increased from 0
(slow) to 90 (fast).
b. By selecting the output speed of the Variator to
High (for high rates of larger seeds) or Low (for
low rates of small seeds) using a selector lever
behind the variator.
Refer to Figure 44
1. To adjust speed, release the locking knob, move the
lever to zero then up to the required position and re-
tighten locking knob.
Refer to Figure 45
2. Use lever to adjust between High and Low output. To
go to the High output pull the lever back, (away from)
the drill hopper. To go to the Low output push the lever
forward, (toward) the drill hopper.
It may be necessary to turn the output shaft in the direction
of the arrow with the calibration crank in order for the Hi-Lo
gears to move and completely engage in the new position.
Always use the calibration crank to turn the output shaft
and make sure the high and low are completely meshed
after making an adjustment.
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