Great Plains YP3025 Operator Manual User Manual
Page 91
Great Plains Manufacturing, Inc.
Troubleshooting
87
2013-09-09
401-703M
Press wheel
or row-units
plugging
Planting conditions too wet.
Wait until drier weather.
Too much pressure on row-units.
Reduce down pressure on row-units.
Coulters set too deep, bring up excess
dirt and moisture.
Check coulter adjustment.
Backed up with planter in the ground.
Clean out and check for damage.
Failed disk bearings.
Replace disk bearings.
Disk blades worn.
Replace disk blades.
Scraper worn or damaged.
Replace scraper.
Air lines
plugging
between air
box and Y
splitters
Improper air hose routing.
With planter unfolded, hoses should form a gentle hori-
zontal “S” shape through the holders with no big sags.
Air leaks between manifold and splitters
Check for leaks and correct as needed.
Fan air flow too low.
Speed up fan. If already at 3800 rpm, increase airflow by
reducing butterfly valve angle, before increasing rpm.
Seed
blowing out
of Pro-Box
door area
Fan air flow too high.
Slow down fan. If already at or below 3000 rpm, set fan at
3800 rpm and use fan butterfly valve to reduce airflow.
Seal on top of airbox damaged or out of
adjustment.
Seal should be compressed approximately
1
⁄
2
in when
hopper or box is installed.
Hydraulic
marker
functioning
improperly
Marker circuit set to Aux
Set Marker/Aux valve on wing to Marker. See page 36.
Air in lines or valves
Re-phase Marker cylinders, then see “Marker Cylinder
Bleeding” on page 91.
Leaks in hose fittings or connections.
Check all hose fittings and connections for air or oil leaks.
Low tractor hydraulic oil level.
Check tractor hydraulic oil level.
Loose or missing bolts or fasteners.
Check all bolts and fasteners.
Needle valve plugged.
Open needle valve, cycle markers slowly and reset nee-
dle valve. See page 165.
Needle valve(s) in sequence valve
plugged.
Open needle valves, cycle markers slowly and reset nee-
dle valves. See page 165.
Wing Fold Switch ON
Turn Wing Fold switch OFF
Marker disk
does not
mark
Marker disc needs adjustment
Increase disc angle. If still no mark, reverse marker disk
to pull or throw dirt.
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 low-
ered), re-calibrate radar speed sensor with planter low-
ered.
Problem
Cause
Solution