Airbox troubleshooting – Great Plains YP2425F-2470 Operator Manual User Manual
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YP2425 & YP2425F
Great Plains Manufacturing, Inc.
401-406M
2014-07-14
Airbox Troubleshooting
HydraulicHitch
Won’t Stay
Raised
Bypass valve is open at hitch
Close valve.
SpeedReading
Doesn’t Match
Tractor
Monitor speed reading will only match
tractor with planter lowered.
If speeds don’t agree during planting (with planter
lowered), re-calibrate radar speed sensor with planter
lowered.
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.
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
airbox.
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
delivery 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.
Incorrect airbox air slot to seed
chamber.
Contact Great Plains Service dept. for
assistance.
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
treatment.
Treatment mixed unevenly and
plugging outlets.
Clean out seed. Re-mix seed and
treatment.
Problem
Cause
Solution