Airbox troubleshooting – Great Plains YP3025 Operator Manual User Manual
Page 92
88
YP3010HDP/3020P/3025
Great Plains Manufacturing, Inc.
401-703M
2013-09-09
Airbox Troubleshooting
Problem
Cause
Fix
Single row doesn’t fill or keep up
with other rows.
Y tube is bent/angled off feed
pipe.
Loosen and rotate pipe so the bend is
straight down and Y-tube is not pointing
to front or rear of air pipe.
Excess fan speed.
Reduce fan speed.
Both rows on one meter outlet
low or not keeping up with other
rows.
Note: This is more likely to occur
on end outlets.
Blockage in air slot in top of air-
box.
Clear by using a long slim tool and taking
hose off hose outlet or clean-out door.
Note: May be necessary to take top off
airbox to clear debris from slot, or
use side access doors.
Bad hose routing between deliv-
ery hose and airbox on wing.
Correct hose routing.
Multiple rows fail for lack of seed. Fan speed too high/too low.
Check/adjust fan speed, butterfly valve.
Out of seed.
Add seed.
Single or multiple hoses plugging
just ahead of airbox.
Fan speed too high/too low.
Check/adjust fan speed, butterfly valve.
Possible air leak.
Check for air leak downstream between
box and top of meter.
All rows fail.
Lack of seed.
Add seed.
Fan speed too high.
Adjust fan speed or butterfly valve.
Extremely high populations may require
slightly reduced field speed.
1, 2, 3, or more outlets fail.
Note: Outlets can be side-by-side
or random. Plugging may
also move from one outlet
to another.
Foreign matter in seed chamber
in bottom of airbox.
Clean out seed chamber.
Little or no seed to many rows,
with heavily treated seed.
Seed treatment sticky.
Note: Do not use liquid seed treatments.
Add talc to seed to dry out seed treat-
ment.
Treatment mixed unevenly and
plugging outlets.
Clean out seed. Re-mix seed and treat-
ment.