
YP1630F-1630 and YP1630F-1670
Troubleshooting
Great Plains
| 401-832M | 2018-07-31
65
Seed Population Troubleshooting Charts
Seed Population Too Low
Problem
Cause
Solution
Overall Low
Population
Incorrect seed rate
Check seed rate charts
Incorrect Transmission sprockets or shafts
used
Check Transmission sprocket tooth counts and Driver/Driven
locations.
Incorrect Range sprockets used
Check Range sprocket tooth counts and Driver/Driven
locations.
Seed size: rate is correct, but under-counted.
Very small seeds (e.g. Milo) may not be sensed
accurately.
Rely on furrow check for verifying population.
Finger Meter: all brushes mis-adjusted or worn.
Adjust brushes (page 58). Check for wear if adjustment does
not correct rate.
Finger Meter: incorrect insert for crop
Consult dealer about alternate inserts.
Finger Meter: field speed too high for 6-finger
meter
Switch to 12-finger meters.
Brush Meter: Empty pockets on plates (skips)
due to sticky seed treatments not allowing seed
to rapidly fill the pockets.
Increase seed lubricant.
Brush Meter: Empty pockets on plates (skips)
due to rough field conditions causing seeds to
fall from the plates.
Decrease field speed.
Brush Meter: Empty pockets on plates (skips)
due to platter speed too high, and pockets are
not filling.
Decrease field speed or change to a higher cell count plate.
Brush Meter: Empty pockets on plates (skips)
due to seed too big for pocket.
Select the correct plate for the seed size.
Brush Meter: Seeds are not falling from plates,
and get carried past drop zone. Static
electricity can cause small, lightweight seeds to
cling to the pocket and not fall out.
The graphite component of Ezee Glide Plus addresses this
issue. Increase the amount of Easy Glide Plus and/or more
thoroughly mix the lubricant into the seed.
Inadequate ground drive wheel spring pressure Check for correct spring setting, page 72.
Improper gap on speed sensor.
Check speed sensor on planter for 1.6 to 3.2 mm (
1
16
inch
to
1
8
inch) gap from wheel. Improper gap can cause erratic
speed signal causing monitor to falsely report improper
planting rate.
Incorrect speed sensor constant
Perform speed calibration per PM400 monitor manual.
Low or Zero
Population,
One Wing
Ground Drive only:
LH and RH Range setup not matched.
Make sure LH and RH Range settings are identical, and that
sprockets are on proper DRIVING/DRIVEN shafts.
Ground Drive only:
LH and RH Transmission setup not matched.
Make sure LH and RH Transmission settings are identical,
and that sprockets are on proper DRIVING/DRIVEN shafts.
Skipping chain from drive to wing
Check chain slack.
Replace worn chain.
Ground drive locked up
Release wing drive (page 40).
Broken chain or sheared pin in ground drive
Inspect and repair drive system.
Содержание YP1630F-1630
Страница 134: ...Table of Contents Index Table of Contents Index...
Страница 140: ...Great Plains 401 832M 2018 07 31 Table of Contents Index 136 YP1630F 1630 and YP1630F 1670 Table of Contents Index...
Страница 141: ...Table of Contents Index Table of Contents Index...
Страница 142: ...Great Plains Mfg 1525 E North St P O Box 5060 Salina KS 67402 Table of Contents Index...