See “ row-unit discs not turning freely ” in this – Great Plains YP4425A Operator Manual User Manual
Page 95
Great Plains Manufacturing, Inc.
Troubleshooting
91
2012-02-23
401-805M
Row-unit
discs not
turning
freely
Row-unit plugged with dirt.
Clean row-unit.
Planting conditions too wet.
Wait until drier weather.
Incorrect side depth wheel
adjustment
See “Side Gauge Wheel Adjustment” on page 73.
Seed-Lok
®
is plugging row-unit.
Lock up Seed-Lok
®
Failed disc bearings.
Replace disc bearings.
Bent or twisted row-unit frame.
Replace row-unit frame.
Partially plugged row-unit seed tube. Lift up planter, expose bottom of seed tube and clean out.
Press
wheels not
compacting
the soil as
desired.
Incorrect spring handle setting
See “Press Wheel Adjustment” on page 80.
Insufficient row unit down-force
See “Row Unit Down Pressure” on page 67.
Use of incorrectly shaped tire for
your conditions.
Wedge shaped wheels work best on narrow spacings and in
wet conditions. Round edge wheels work best in wider row
spacings and drier conditions.
Not level front to rear.
Check tongue height.
Wheel stagger needs adjustment for
conditions
See “Press Wheel Adjustment” on page 80.
Too wet or cloddy
Wait until drier weather or rework ground.
Seed
blowing out
of bulk box
door area
Fan too fast.
Slow down fan.
Seal from airbox to hopper damaged
or not adjusted.
Inspect and adjust seal. Seal should be intact, and compress
to about
1
⁄
2
inch (13 mm) under seed container.
Air lines
plugging
between air
box and Y
splitters
Fan too slow.
Speed up fan.
Air leaks between air box manifold
and splitters
Check for leaks and correct as needed.
Improper hose routing, sags or kinks With planter unfolded, hoses should for a gentle “S” shape
through the holders, with no deep sags.
Air lines
plugging
between
Y-tube and
meter
Sag or kink in air hose.
Check air tube placement in tube mount weldment. If correct,
shorten any hose that has stretched due to age.
Meter is shut off but Y-tube is open.
Shut off Y-tube.
Air tube assembly not positioned on
correct tab.
Move assembly to properly position Y-tubes over row meters.
Sag in air hose due to incorrect
frame height
Raise or lower the tongue so center portion of frame is level
with gauge wheel area.
General Troubleshooting
Problem
Cause
Solution