Great Plains ADC2220 Operator Manual - Manual (Page 28)

24 ADC2220 Table of Contents Index Great Plains Manufacturing, Inc.
167-073M Table of Contents Index 2012-10-17
Meter Doors
Refer to Figure 19
Each meter box has two distinct access doors on the
bottom:
• Front: Clean-Out
(for emptying hopper)
• Rear: Calibration
(for meter sampling and meter clean-out)
The doors are closed during transport, loading and
planting. 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.
Check for leaks with cart fan running. Periodically inspect
the lever clamps for proper tension, and inspect the
elastomer seals for integrity and resiliency.
Meter Door Opening
1. Pull out on a clamp handle just until it is loose.
2. Pull out on the other clamp handle. The door
normally 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
handle 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.
Material Loss Risk:
Do not open the (forward) clean-out door unless 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. Re-closing the clean-out
door, and obtaining an air-tight seal, is usually not possible
until the hopper is completely empty.
Figure 19
Meter Doors Closed
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