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2018-10-10
407-313M
NP30L or NP40L
Troubleshooting
100
Ground Drive Pump Troubleshooting
The CDS-John Blue NGP Pump Parts and Instructional
manual (12-M-43) has additional troubleshooting
information.
Problem
Cause
Solution
Low Rate
Ground drive on Low Range when rate
requires High
Exchange Range sprockets (page 91).
Dial setting incorrect
Re-check Range and Dial settings for rate.
Ground drive slipping
Check condition of arm and chains. Check operating height of
applicator (may be too high). If soil is too wet, try reconfiguring for
a lower manifold pressure, or wait for dryer conditions.
Pump damaged
See CDS-John Blue NGP Pump Parts and Instructional manual.
High Rate
Ground drive on High Range when rate
requires Low
Exchange Range sprockets (page 91).
Dial setting incorrect
Re-check Range and Dial settings for rate.
Low Manifold
Pressure
Relief valve set too low
Adjust relief valve (page 91).
Ground drive on Low Range when rate
requires High
Exchange Range sprockets (page 91).
Field speed too low
Increase speed or reduce orifice plate size.
Ground drive wheel or chains slipping
Check condition of arm and chains. Check operating height of
applicator (may be too high). If soil is too wet, try reconfiguring for
a lower manifold pressure, or wait for dryer conditions.
Product
Dumping at
Relief Valve
Rate, speed or material viscosity too
high for orifice plate size
Re-check pump rate determination, Range sprocket, pump dial
and console setup (Option). If correct, replace orifice plates with a
larger size (page 88).
Orifice plates clogged
Use larger plates (page 88) or finer strainer screen (page 90).
Relief valve set too low
Adjust relief valve (page 91).
Tines plugged
Clean out tine tubes
Material slushy due to low temperature,
or actual ice in boom
Wait for warmer conditions.
High Manifold
Pressure
Ground drive on High Range when rate
requires Low
Exchange Range sprockets (page 91).
Field speed too high
Reduce speed or increase orifice plate size.
Содержание Nutri-Pro NP30L
Страница 2: ...Table of Contents Index Table of Contents Index ...
Страница 154: ...NP30L or NP40L Cover Table of Contents 150 2018 10 10 Cover Table of Contents 407 313M ...
Страница 155: ...Table of Contents Index Table of Contents Index ...
Страница 156: ...Great Plains Mfg 1525 E North St P O Box 5060 Salina KS 67402 ...