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PL5700 Planter
Troubleshooting
Great Plains | 411-681M | 04/08/2021
82
Fertilizer Troubleshooting
Problem
Cause
Solution
No fertilizer flow
Hydraulic driven pump (option) not engaged Engage pump.
Various possible pump issues
Refer to pump manual.
Tank and/or pump valves closed
Check that tank and pump valves are open
Chain missing at one or more drive stages
Check all chains from ground drive to pump
Tank plugged
Dilute or clean out any material clogging
discharge port (page 68).
Strainer plugged
Close all valves. Inspect strainer. Clean
screen as needed.
Switch to a larger screen size if materials
clog strainer rapidly and large size orifices
are in use.
Pump setting at or near zero
Recommended pump adjuster settings are
in the range 2 to 10. See Material Rate
manual.
Material run
-
out
Check tank level.
Material low
-
loss of prime
Add material. When tank level is below
pump inlet level, any air allowed in the line
can cause the pump to lose prime.
Low rate
Fertilizer transmission in low range when
high range was intended
Change sprockets. See Material Rate
manual.
Various possible pump issues
Refer to pump manuals.
Low pressure at
desired rate
Orifice size too large
Choose alternate orifice plate size. See
Material Rate manual.
Orifices correct plate size, but holes are
enlarged from use
Replace orifice plates. Discard worn plates.
Rate may actually be low
Check fertilizer drive sprockets.
Uneven flow at desired
rate
One or more orifice plates plugged
Clean and reinstall orifice plates. Check that
material is correct consistency for orifice
size.
Orifice plate sizes vary between rows
Check that all nozzles have the same size
plates.
Pressure unstable
Strainer clogged
Close all valves. Inspect strainer. Clean
screen as needed. Switch to a larger screen
size if materials clog strainer rapidly and
large size orifices are in use. See “
Dumping at normal
pressure
Relief valve setting too low
Review relief valve setting. See Material
Rate manual.
Содержание PL5700
Страница 120: ...Great Plains 411 681M 04 08 2021 113 PL5700 Planter Table of Contents Index Specifications Topcon XD and XD Plus ...
Страница 122: ...Great Plains 411 681M 04 08 2021 115 PL5700 Planter Table of Contents Index Specifications ...
Страница 130: ...Great Plains 411 681M 04 08 2021 123 PL5700 Planter Table of Contents Index Pre Delivery Instructions ...
Страница 146: ...Great Plains 411 681M 04 08 2021 139 PL5700 Planter Table of Contents Index Warranty ...
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Страница 150: ...Great Plains Mfg 1525 E North St P O Box 5060 Salina KS 67402 ...