GREAT PLAINS Yield-Pro PL5800, Operator'S Manual

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Great Plains | 411-474M | 12/17/2019 82
PL5800 Planter Table of Contents Index Troubleshooting
Seed Population Too Low
Uneven seed
spacing.
Electric or hydraulic meter drive motor
rpm too low for reliable control by
proportional valve
Increase field speed.
Use a seed wheel with lower cell count.
Excessive field speed Reduce field speed.
Unclean seed Use clean seed.
Damaged seed tube Inspect the seed tube and repair or replace.
Seed-Lok
®
plugging
Lock up the Seed-Lok.
Row unit disks not turning See “
Row unit disks not turning
” on page 82.
Plugged seed tube Lift up planter, expose bottom of seed tube and clean out.
Worn or rusted sprockets and/or chain
idler or bearings
Check and replace any worn or rusted sprockets or chain idlers.
Lack of proper seed lubrication on seed See “
Seed Lubricants
” on page 67.
Problem Cause Solution
Problem Cause Solution
Overall low
population.
Incorrect seed rate Check seed rate charts.
Incorrect ground drive transmission or
range sprockets or shafts used
Check transmission sprocket or range sprocket tooth counts and
driving/driven locations.
Empty pockets in seed disk due to
insufficient pressure
Increase controlled air to the meter. See “ Fan and Meter
Pressurization
” on page 32.
Empty pockets in seed disk due to sticky
seed treatments not allowing seed to
rapidly fill the cells
Increase seed lubricant.
Empty pockets in seed disk due to rough
field conditions causing seeds to fall
from the disk
Decrease field speed or increase the air pressure in the meter.
Empty pockets in seed disk due to seed
pool too low and seeds not filling every
cell in the seed disk
Open the seed inlet gate one notch.
Empty pockets in seed disk due to disk
speed too high and cells not filling
Decrease field speed or change to a higher cell count disk.
Empty pockets in seed disk due to
singulation (4 tufted) brush too
aggressive
Check for matted, stuck together fibers. Wash, scrape, clean, or
replace as needed.
Empty pockets in seed disk due to seed
too big for the cell
Select correct seed disk for seed size.
Low
population, one
wing.
Left-hand and right-hand ground drive
transmission or range setup not matched
Make sure left-hand and right-hand range and transmission settings
are identical, and that sprockets are on the proper driving/driven
shafts.
Clutch slipping, due to contaminants in
the clutch or wear
Lock up the clutch until it can be overhauled or replaced. See
“ Electric Clutch Lockup ” on page 26.
Skipping chain from the drive to the wing Check chain slack. Replace worn chain.