Troubleshooting – Great Plains ADC2350BE Operator Manual User Manual
Page 75
2012-08-01
167-085M
Great Plains Manufacturing, Inc.
Troubleshooting
71
Troubleshooting
This chart primarily covers problems arising from air cart
issues, although it does include a few drill items.
Also consult the Troubleshooting chart for the drill
implement.
Problem
Cause
Solution
Planting too little
Air leaks
Check hopper lids, meter seals, manifold caps and
seed hose connections. Adjust latch and/or
replace seals as needed.
Fan speed too low
See “Recommended Fan Speeds” on page 68.
Fan won’t run fast enough.
Tractor must be able to supply 18 gallons/minute
at 200 psi.
Check that hydraulic fan check valve is not
installed backward.
Hydraulic fan running in reverse
Check hydraulic circuit flow direction.
Height switch operating too low - clutch
is disengaging with openers in ground
See “Implement Lift Switch Adjustment” on
page 69.
Incorrect meter setting
Re-check against Seed Rate Charts.
Verify calibration.
Incorrect cart setup sprockets for
implement
Re-check against page 19.
Excessive field speed: chart rates were
developed at 6.5 mph (10.5 km/h)
Reduce speed
Incorrect tire size or air pressure
Check tire size and air pressure, page 87.
Seed size and weight vary from chart
Calibrate. Adjust rate to compensate.
Excessive gaps between drill passes
Adjust implement markers.
Low seed level in seed box
Fill seed box.
Actual field size is different
Verify field size.
Plugged seed hose
Clean out seed tube hose.
Remove excess slack in hoses.
Re-route hoses to avoid sharp bends.
Check that metering is actually stopping when drill
is raised. Adjust or replace height switch.
Plugged opener seed tube
Lift up drill, expose bottom of seed tube and clean
out.
Meter sprocket damaged
Replace seed cup sprocket.
Obstruction in meter or seed tubes
(foreign material or uncleaned seed)
Clean meter and seed tube.
Clutch slippage due to oil in clutch
Disassemble and de-grease clutch. On an
emergency basis, use the clutch lock-up
procedure on page 70.
Removed, thrown or worn chains
Check drive chains.