Great Plains 3P600 Operator Manual - Manual (Page 30)

Table of Contents Index 2011-10-21
26 3P500, 3P500V & 3P600 Table of Contents Index Great Plains Manufacturing, Inc.
Troubleshooting
Problem Cause Solution
Uneven seed spacing or
uneven stand Excessive field speed Reduce field speed.
Feed cups plugging Clean out feed cups.
Seed tubes plugging Clean out seed tubes.
Opener discs not turning freely See “Opener discs not turning freely” in this
Troubleshooting section.
Opener not penetrating low spots Adjust opener spring (page 21).
Ground drive wheel slippage Check frame height. Solution may require
drier conditions.
Seed cups too wide Use faster Drive Type speed and close feed
cup flutes to a more narrow position.
Chain skipping Check chain slack and wear.
Mud build-up on Seed-Lok
®
wheel Lock-up Seed-Lok
®
(page 23) or wait for
drier conditions.
Uneven seed depth Excessive field speed Reduce field speed.
Planting conditions too wet Wait until drier weather.
Drill not level Readjust level (page 12).
Opener discs not turning
freely Trash or mud build up on disc scraper Adjust scraper (page 23)
Scraper adjusted too tight, restricting
movement Adjust scraper (page 23).
Failed disc bearings Replace disc bearings.
Bent or twisted opener frame Replace opener frame.
Planting conditions too wet Wait until drier weather.
Too much opener down pressure If opener discs turn freely by hand but not in
field, reduce down pressure (page 21).
Incorrect press wheel adjustment Readjust press wheel (page 25).
Actual seed rate
different than desired Incorrect tire pressure Check tire pressure (page 40).
Incorrect frame height Check frame height (page 12).
Build up of seed treatment in feed cup Clean out seed treatment from feed cups.
Incorrect rate adjustment Check gearbox, sprocket, seed-rate handle
and seed door settings. Perform calibration if
not already done. See Seed Rate Manual.
Excessive seed cracking Excessive field speed Reduce field speed.
Feed cup flutes not open enough Open feed cups to a wider position and use a
lower Drive Type. See Seed Rate Manual.
Feed cup door handle not open
enough Open feed cup door handle to a lower
position. See Seed Rate Manual.
Press wheels not
compacting soil as
desired Too wet or cloddy Wait until drier weather or rework ground.
Not enough down pressure on disc
openers Increase down pressure on openers
(page 21).