Great Plains NTA3007HD Operator Manual - Manual (Page 51)

Operating Instructions 47
04/04/2011 166-207M
Meter Doors
Refer to Figure 52 and Figure 53
Each meter box has two distinct access doors on the bot-
tom:
• Under DRIVING Gear: Clean-Out
(for emptying hopper)
• Under DRIVEN Gear: Calibration
(for meter sampling and meter clean-out)
The doors are closed during transport, loading and plant-
ing. They may be open slightly in storage if the hopper
was not completely dry at clean-out.
The doors need to close and seal tightly during planting.
Periodically inspect the lever clamps
for proper ten-
sion, and inspect the elastomer seals for integrity and
resiliency.
Meter Door Opening
Do not open the clean-out door (the door under the upper
DRIVING gear) until preparations have been made to capture
any material to be re-used. Any material present will flow
immediately, possibly in large volume, as soon as the door is
open.
1. Pull out on a clamp handle just until it is loose.
2. Pull out on the other clamp handle. The door nor-
mally will swing down on its own. If not, pull it open
by hand.
Meter Door Closing
Make sure the clamp handles are out or down (not up),
or it will not be possible to close the door.
1. Use a clean rag to wipe any residual material from
the face of the elastomer seals on the door, and from
the bottom face of the meter box.
2. Swing the door up into closed position.
3. While holding the door closed, swing one clamp han-
dle up, past vertical.
4. Swing the other clamp handle up past vertical.
5. Inspect the door closure for possible air leaks.
Replace any deformed elastomer seal or damaged
latch clamp.
Null4:
Figure 52
Meter Doors Closed
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1 2
3 3
3
3
1
2
3
Null4:
Figure 53
Meter Doors Open
26341
1 2
3
3