Great Plains YP1625A Operator Manual - Manual (Page 85)

Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 81
2013-08-13 Table of Contents Index 401-625M
Low
Population,
Single Row Shutter opening too wide - interfering with
meter pressurization Adjust shutter to lower setting.
Shutter opening too narrow - starving meter
of seed (low seed pool) Adjust shutter to higher setting.
Y-tube partially or completely closed,
reducing bulk flow to meter or causing
bridging Open Y-tube for row
Meter starvation due to bridging at shutter Re-adjust for shutter bridging (page 69).
If seed is treated, increase seed lubricant.
Meter starvation due to bridging above inlet,
caused by low seed delivery air flow Clear bridge (page 69). Check that seed delivery
system is getting sufficient fan air, and that there are
no other obstructions upstream.
Meter starvation due to bridging above inlet,
caused by high levels of seed treatment Clear bridge (page 69). Increase seed lubricant.
Skips due to low meter pressurization at one
or several rows Check shutter setting.
Check for excess wear on seed drop brush.
Check for loose or leaking pressure hose.
Skips due to skipping chain Check for worn chain, worn idlers, and low chain slack
(page 100).
Skips due to debris in disk pockets Remove rain covers. Inspect and clean out disks.
Row has blank disk installed Replace with seeding disk.
Seed sensor obscured Clean out seed tube (see page 93).
Population Too Low
Problem Cause Solution