Great Plains 2525A Operator Manual - Manual (Page 61)

Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 57
2013-06-04 Table of Contents Index 118-999M
Seed Pool Troubleshooting
29832
Figure 63
Rear Cross-Section of Air-Pro
®
Meter in Normal and Row-Failed Conditions
29832
Normal: Filled Delivery Blockage Bridging: Inlet Screen Bridging: Inlet Shutter
Inlet is filled to seed box.
Seed move slowly down as
singulated by meter. No seed arriving from box.
Air back-flow
is occurring.
Causes may include:
• seed run-out
• blockage in seed box
• plugged sliding seed tube
• seed tube plug installed in
seed box
• foreign matter in seed
• excessive or sticky seed
treatment
Oversize matter in seed has
caused a bridge at the top of
the inlet.
Air back-flow is occurring,
which can reduce meter
pressure at other rows.
A bridge at the shutter is
blocking flow. Causes may
include:
• oversize seed
• shutter setting too low
• oversize matter in seed
Actions: Actions: Actions: Actions:
No action required.
Continue Planting.
1. Correct cause of block-
age.
2. Resume planting.
1. Close shutter.
2. Tap on screen cone and
inspect.
3. Remove lock ring. Lift
sliding seed tube off
inlet if step 2 doesn’t
clear,
4. Check seed pool for for-
eign matter.
5. Resume planting.
1. If shutter was at sug-
gested opening,
increase one notch.
2. Check seed pool for for-
eign matter.
3. Resume planting.
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