Great Plains CTA4000 Operator Manual - Manual (Page 50)

46 CTA4000
160-269M-A 08/03/2010
Seed visible on ground
behind implement
Seed depth too shallow Check and reset press wheel depth, then
down-forces.
Down force too low Check settings and hydraulics.
Fan speed too high Check rpm on seed monitor.
Ground speed too high Reduce ground speed.
Openers plugging Check disk spacing and scrapers.
Seed hose disconnected or leak-
ing seed. Reconnect or make repairs.
Meter door open on air cart Clean seals and close door.
Check latches for proper operation.
Seed flow doesn’t stop
during turns Implement lift switch out of adjust-
ment or failed Check implement lift switch engagement.
No Seed Flow Implement lift switch out of adjust-
ment or failed. Check, adjust or replace implement lift switch.
Cart clutch failed Replace clutch. On an emergency basis, use
the clutch lock-up procedure in the cart Opera-
tor’s Manual.
Cart clutch circuit failed Replace failed component or cable. On an
emergency basis, use the clutch lock-up pro-
cedure in the cart Operator’s Manual.
Seed rate set to zero Check seed rate indicator at cart meter(s).
Uneven seed spacing or
uneven stand
Excessive field speed Reduce speed.
Opener disks slowing Check that disks turn freely. Check scrapers.
Insufficient down force for low
spots Increase down force
Frame not following terrain Hydraulic circuit not locked on.
Air leaks Check hopper lids, meter seals, manifold caps
and seed hose connections. Adjust latch and/
or replace seals as needed.
Erratic meter clutch Check for damaged cables and loose connec-
tions.
Tower blockage Check towers for obstructions and plugging.
Blockages sometimes move from port to port
in towers.
Seed hose plugged Stop and raise implement with fan running.
Hand-crank meter and check for rows not
delivering seed.
Unclean seed Use clean seed.
Seed sticking to firmer Lock-up firmer or wait for drier conditions.
Problem Cause Solution