Great Plains 1625AHL Operator Manual User Manual
Page 103
Great Plains Manufacturing, Inc.
Troubleshooting
99
2014-04-21
411-020M
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.
Planter not set to run level from front to
rear.
Check tongue height page 20
Backed up with planter in the ground.
Clean out and check for damage.
Failed disc bearings.
Replace disc bearings.
Disc blades worn.
Replace disc blades.
Scraper worn or damaged. Side depth
wheels not set correctly.
Adjust side depth wheels page.
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 77.
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 Adjustments” on page 86.
Insufficient row unit down-force
See “Row Unit Down Pressure” on page 71.
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.
Press wheels not aligned with openers.
Air lines
plugging
between air
box and rows
Fan too slow.
Speed up fan.
Improper hose routing, sags or kinks
With planter unfolded, hoses should for a gentle “S”
shape through the holders, with no deep sags.
Planter will not
lower
Check that pressure and return hoses are
fully engaged in remote outlets.
Planter frame
raises or
lowers slowly
Lower tractor hydraulic pressure. Tractor operating
pressure must be a minimum of 10 340 kPa (1500 psi).
Operate tractor with flow control lever in the unrestricted
position. Refer to your tractor operator’s manual.
Erratic or
uneven lift
Check for air in hydraulic system. Bleed system of air if
necessary.
Planter will not
raise
Tractor hydraulic system bypassing oil. Readjust
tractor’s hydraulic lever linkage. Refer to your tractor
operator’s manual.
General Troubleshooting
Problem
Cause
Solution