Great Plains 3S-4000F Operator Manual User Manual
Page 75
Great Plains Manufacturing, Inc.
Troubleshooting
71
2014-06-10
195-394M
Drill boxes do not
empty evenly
(cont.)
Planting around fields vs.
back-and-forth.
Correct planting operation.
Rough field conditions may move
seed in the box.
N/A
Seed cup(s) are shut off.
Open seed cup(s).
Some models do not have the same
number of seed cups between each
bulkhead divider. The section with
more seed cups will empty sooner.
Verify number of seed cups in each box.
Press wheel or
openers plugging
Planting conditions too wet.
Wait until drier weather.
Too much hydraulic pressure on
openers.
Reduce hydraulic down pressure on openers.
Backed up with drill in the ground.
Clean out and check for damage.
Failed disk bearings.
Replace disk bearings.
Disk blades worn.
Replace disk blades.
Scraper worn or damaged.
Replace scraper.
Seed cup
sprockets locked
up or seed drive
shaft twisted.
Foreign matter lodged in seed cup
sprockets.
Clean out seed cup sprockets.
Build-up of dried liquid insecticide in
seed cups.
Remove build-up by disassembling each seed cup
and scraping the foreign substance from turning
surfaces.
Openers drill too
deep (Bulldozing)
Too much hydraulic down pressure
on openers.
Reduce hydraulic down pressure on openers.
Incorrect press wheel adjustment.
Readjust press wheel, page 58.
Front of openers
dropping too low
in hard or
minimum-till
conditions
Incorrect opener frame setting.
Set opener frame bolt in top hole, page 59.
Too much hydraulic down pressure
on openers.
Reduce hydraulic down pressure on openers.
Openers raise
when tractor
hydraulic lever is
held forward and
lower when lever
is held back.
Reverse hydraulic hoses at tractor quick couplers.
Opener frames do
not float over
uneven terrain.
Hydraulic lever not locked forward.
Lock hydraulic lever forward.
Openers not connected to circuit
designed for hydraulic motor control.
General Troubleshooting
Problem
Cause
Solution