Great Plains YP625PD Operator Manual User Manual
Page 76
72
YP625PD
Great Plains Manufacturing, Inc.
401-754M
02/23/2011
Marker disk
does not
mark
Disk angle too straight for soil
conditions
Reverse marker disk to pull or throw dirt.
Speed
Reading
Doesn’t
Match
Tractor
Monitor speed reading, using
optional radar, will only match tractor
with planter lowered.
(Speed reading with magnetic
pickup falls to zero when lifted.)
If speeds don’t agree during planting (with planter lowered),
re-calibrate radar speed sensor with planter lowered.
Dry Fertilizer Troubleshooting
Problem
Cause
Solution
No Fertilizer
Flow, All
Rows
Hopper empty
Check / refill hopper.
Chain missing at one or more
drive stages
Check all five chains from ground drive to hoppers. See “Dry
Fertilizer Chains” on page 106.
No Fertilizer
Flow, Some
Rows
Hopper plugged
Clean out any material clogging discharge port. See “Dry
Fertilizer Clean-Out” on page 76.
Shaft disconnected
Check couplers along final drive shaft.
No Fertilizer
Flow, One
Row
Applicator tube plugged with soil
Disconnect hose at top of applicator tube. Remove blockage
from below. Raise release height (page 45).
Applicator tube plugged with
fertilizer.
Disconnect hose at top of applicator tube. Remove blockage
from below. Use finer grained fertilizer, or dry out the fertilizer
if coagulation is the problem.
Low Flow
Incorrect Transmission sprockets
Re-check Seed and Fertilizer Rate manual (401-754B).
Exchange DRIVING and DRIVEN sprockets as needed.
Field speed too high for
Transmission sprockets selected
Apply at a lower speed, or use a new sprocket pair for the
actual rate and speed. Metering (kg per revolution) is lower at
high speeds.
Ground drive wheel slipping
Check lowered tool bar height (page 16). Operate at a lower
field speed. Field conditions may be too wet for reliable meter
drive.
Meter flutes worn
Inspect meter flutes (page 24). Replace as needed.
High Flow
Incorrect Transmission sprockets
Re-check Seed and Fertilizer Rate manual (401-754B).
Exchange DRIVING and DRIVEN sprockets as needed.
Field speed too low for
Transmission sprockets selected
Apply at a higher speed, or use a new sprocket pair for the
actual rate and speed. Metering (kg per revolution) is higher
at low speeds.
Fertilizer on
Surface
Release height too high
Lower release height (page 45).
Coulter depth too shallow
Increase coulter depth (page 44).
General Troubleshooting
Problem
Cause
Solution