
YP4425A
Troubleshooting
87
2018-07-30
401-805M
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 77).
If seed is treated, increase seed lubricant.
Meter starvation due to bridging above inlet,
caused by low seed delivery air flow
Clear bridge (page 77). 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 77). 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 109).
Skips due to debris in disc pockets
Remove rain covers. Inspect and clean out discs.
Row has blank disc installed
Replace with seeding disc.
Seed sensor obscured
Clean out seed tube (see page 97).
Seed tube plugged
Raise planter, expose bottom of seed tube and clean out.
Population Too Low
Problem
Cause
Solution
Содержание YP4425A
Страница 168: ...Cover Table of Contents Cover Table of Contents...
Страница 169: ...Table of Contents Index Table of Contents Index...
Страница 170: ...Great Plains Mfg 1525 E North St P O Box 5060 Salina KS 67402...