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NP30L or NP40L
Metering Overview
23
2018-10-10
407-313M
L35. Pressure Gauge
(ground drive implements only)
This 0-to-100 psi gauge reports the pressure in the
manifold, which is typically 15-40 psi during
application. The pressure should be above zero
only when fertilizer is flowing. The back-pressure at
the nozzle orifices
falls quickly when the pump
stops.
Check the pressure periodically during application.
If it rises to over 65 psi, the relief valve
may be
activating. See also pressure sensor
.
L36. Relief Valve
(ground drive implements only)
Adjust this valve to activate at 65 psi (page 91).
This valve protects the manifold against blockages,
and from over-pressure due to orifice sizes too
small for the application rate or the material
viscosity.
L37. Dump Line
(ground drive implements only)
If the relief valve
operates, material is jettisoned
at this tube. If you observe dumping, check the
pressure and review the orifice plate
configuration.
L38. Hydraulic Drive Pump (Option)
Hydraulic Drive Option: The Ace
FMC-150F-HYD-206 has a capacity of up to
150 gallons/minute (560 liters/minute). See the Ace
Pump Instruction manual (HYD-MAN) for
maintenance.
L39. Air Bleed Line
(hydraulic drive pump implements only)
This line to the tank enabled pump priming by
bleeding off air. If using an off-applicator tank, a
user-provisioned bleed line or bleed valve must be
provided for pump priming.
L40. Flow Control Valve
(variable rate only)
Under the control of the console (not shown) this
valve is being constantly adjusted to divert back to
the tank, any material not required at the current
application rate (as reported by the flow meter
).
L41. Flow Meter
(variable rate only)
This sensor reports the actual material rate entering
the variable rate manifold. As it detects variations
from your desired rate, it signals the console to
adjust the control valve
.
L42. Passive Manifold
(used only with preset rate implements)
This plumbing cross splits the flow into three
sections. Equal flow is assured by the orifice
plates
.
L43. Section Valves
(variable rate only)
There are three On/Off solenoid valves (1, 2 & 3).
These open and close under the control of BOOM
switches on the Raven SCS 450 console, or as
commanded by a controller with section capability.
L44. Bypass Valve
(variable rate only)
This 4th manifold On/Off valve is normally closed.
If the controller commands all of the section
valves
to close, it also commands the bypass
valve to open. The flow control valve
cannot
respond as quickly as On/Off valves, so the bypass
valve controls pressure spikes by diverting some
flow back to the tank.
L45. Pressure Sensor
(variable rate only)
The optional Raven SCS 450 console displays the
manifold pressure during operation. This is
measuring essentially the same pressure as the
mechanical pressure gauge
.
L46. Boom
There is one boom assembly per implement
section. Booms may be different lengths at center
and on wings. The assembly feed may be via a tee
or into one end of the boom.
Preset rate implements are operated as a single
boom. Variable rate implements are operated as a
three-section boom.
L47. End Cap
A boom has at least one end cap. A tee-supplied
boom has two caps. These caps are removed for
clean-out (see page 103).
L48. Boom Clamp
This fitting taps the boom for delivery to the row. it
contains an 8 psi check valve, which prevents
dribbling when the system is idle. Seasonal
clean-out (page 103) is necessary to prevent
over-winter freezing of residual material.
Booms typically have more boom clamps than
applicator rows (the same boom assembly is used
on multiple implement models). Active rows have
nozzle bodies
. Inactive stations have shutoff
caps
.
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 ...
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Страница 156: ...Great Plains Mfg 1525 E North St P O Box 5060 Salina KS 67402 ...