Great Plains NTA2007HD Operator Manual - Manual (Page 101)

Great Plains Manufacturing, Inc. Contents Index 97
04/04/2011 Contents Index 166-283M
Troubleshooting
See also:
“Lift Lock Troubleshooting” on page 100,
“Brake Troubleshooting (Option)” on page 101 and
“Troubleshooting and Alarms” topic in DICKEY-john
®
Air Cart Control manual.
General Troubleshooting
Problem Causes Solutions
No material flow
(all rows) Tire problems at contact drive Check transport and contact tire sizes and
inflation (page 147).
Broken or removed chain(s) in drive system Check chains against “Chain Routing” on
page 149.
Removed final rate Range gear(s); for exam-
ple, single hopper operation with incorrect
meter disabled Re-install gear(s) per chart and calibration
for affected meter.
Variable rate gearbox set to zero, or too low Re-set gearbox per calibration.
Empty hopper Load material.
Meter in use clogged Clean-out meter (page 109).
Fan speed too low Check pulses-per-rev setting for fan in seed
monitor (page 162). Increase fan speed to
recommended range (page 82).
Fan running backward Reverse fan circuit hoses at hitch.
No material flow
(multiple rows) Primary seed hose blocked Check seed hoses for kinks, congealed
materials at low spots, nests and pests.
Tower inlet or turret blocked
No material flow
(one or two rows) Seed tube blocked at row Inspect and clear seed tube.
Tower port blocked for affected row Disassemble distribution ring and clear
blockage.
False alarm - seed tube sensor discon-
nected or failed Run monitor self-test. Swap sensor with a
working row to verify failure. Replace sensor.
Material is flowing, but
is not detected by seed
monitor This is normal during the first few meters/feet
of planting, as it takes some time for material
to reach rows. Lower openers 3m/10ft before planting is to
begin. Monitor does not check for blockage
during first 5 seconds.
Lift switch mis-adjusted, failed or mis-wired. Check, adjust or replace switch (page 112).
Seed monitor disconnected at hitch Connect seed monitor.
Planting too little
(some rows) Partial blockage in meter chamber, seed
hoses, towers, seed tubes Treat as blockage. See “No material flow
(multiple rows)” on page 97 and “No mate-
rial flow (one or two rows)” on page 97.