396
-
3815Y1 SureFire PumpRight for Raven RCM
55
Revised 12/04/2019
Other issues
1.
“
My rate won
’
t go low enough. I want 8 gpa, but it won
’
t put down less
than 11 gpa.
”
A. Check
Setup > System Settings > Rates > Minimum Flow Rate.
This can be set at
0.0 or at the low range of your flowmeter. This is
gal / min
not
gal / acre
.
B. Check
Setup > System Settings > Control Valve Setup > PWM Settings > Low Limit
. Default setting is
10 for electric pumps and 25
-
30 for hydraulic pumps. If set too high, the pump cannot slow down enough
when your speed drops or when sections close.
C. On a hydraulic pump, be sure the red manual override knob is down and locked on the hydraulic valve.
2.
“
I can
’
t get up to my rate. I want 12 gpa, and I can
’
t get more than 10 gpa.
”
A. How many GPM are required to hit your rate? Is this within the pump
’
s specifications? On an electric
pump, the output of the pump decreases as the pressure increases. Keep the pressure under 40 PSI (or
lower) on an electric system. Is a recirculation valve open, allowing too much liquid to recirculate?
B. On a dual electric pump system, check each pump individually to see that each one is working at
capacity.
C. Is the strainer plugged? If too small of a mesh strainer is being used, the fluid can gel up around the
screen as the fluid is pulled through.
D. Does the pump have enough hydraulic oil to hit the desired rate? If the pump is in series behind another
pump or motor, the hydraulic oil to this pump may be limited.
E. Check
Setup > System Settings > Control Valve Setup > PWM Setup > PWM Settings > High Limit.
This should be 100.
F. Check the PWM DC % (Duty Cycle). This can be placed on the Run Screen.
G. Check the Pump RPM. Maximum RPM should be 500
-
550 RPM.
H. Run the pump with a Test Speed in Manual Mode. Press the + button to increase flow. Observe flow
(GPM), PWM DC%, PSI, and Pump RPM (if equipped).
I. Run a Nozzle Flow Check. See gal/ac, PSI, gal/min, and PWM Duty Cycle.
J. Is the flow cal correct? Is the width of the implement set correctly?
3.
“
It
’
s pretty close to the rate, but it won
’
t ever lock in to the rate.
”
Go to
Setup > System Settings > Rates > Display Smoothing.
Check the box for Display Smoothing.
Without Display Smoothing it is normal for the system to show the rate constantly changing small amounts as
you go across the field. With Display Smoothing, if the Applied Rate is close to the Target Rate, the display
does not show all the small changes.
4.
“
When I start up, I get a screen that says
“
Solution Pump Dry
”.
This is not unusual on the RCM. If the flowmeter does not show flow immediately when you start, this screen
pops up. It is made to protect centrifugal pumps that can be harmed quickly if they are dry. This is not a
problem for SureFire diaphragm pumps. To get to Target Rate quicker on startup, set the PWM Startup % so
the pump starts at or near where it will be running.
G
Trouble
-
shooting
SureFire
Ag
Systems