Great Plains YP1630F-1670 Operator Manual - Manual (Page 70)

66 YP1630F Table of Contents Index Great Plains Manufacturing, Inc.
401-832M Table of Contents Index 2012-12-27
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.
Low or Zero
Population,
Single Row Seed meter not engaged. Check clutch alignment and engagement (page 34).
Skips or zero rate due to skipping or
broken chain. Check for worn chain, worn idlers, low chain slack and
general chain condition (page 95).
Seed sensor obscured. Seed rate is
actually correct, but under-counted. Clean out seed tube (page 75).
Finger Meter: broken finger Repair meter.
Finger Meter: castle nut mis-adjusted Check that adjustment nut in meter is adjusted between
2.5 and 2.8 N-m (22 and 25 inch-pounds). (page 58).
Brush meter: Incorrect seed plate installed Check rows for identical plates.
Brush meter: Skips due to debris in plate
pocket Inspect and clean out plate.
Foreign matter in hopper. Clean-out hopper (page 74).
Seed run-out. Refill row hopper(s).
Seed tube plugged. Clean out seed tube. Avoid reverse motion with rows in
ground. Avoid tight turns with rows in ground.
Seed Population Too Low
Problem Cause Solution