Great Plains Raven 440 User Manual
Page 44
Chapter 6
40
SCS 440 Serial Interface Installation & Service Manual
15.
Verify that the maximum pressure is still present.
16.
Hold the FLOW CONTROL switch in the DEC position until the pressure is at its minimum to ensure that the
control valve is fully closed.
17.
Verify RATE and minimum pressure.
Note:
If the RATE and minimum pressure cannot be achieved, consider modifying the plumbing into the
alternate bypass plumbing system configuration. Refer to the Alternate Bypass Line System Setup
section on page 40.
Alternate Bypass Line System Setup
Note:
This procedure applies only to applications of less than 3 GPM [11 lit/min]. For flow of 3 GPM [11
lit/min] or greater, refer to the Initial System Setup section on page 39 for the main hose line setup
procedure.
1.
Fill the tank with water only.
2.
Turn the Master ON/OFF switch ON.
3.
Turn the boom ON/OFF switches OFF.
4.
Switch the AUTO/MAN/OFF switch to MAN.
5.
Turn the Power ON/OFF switch to ON.
6.
Verify that the BOOM CAL, SPEED CAL, METER CAL, VALVE CAL, AND RATE CAL values have been
entered correctly into the console.
7.
Press the SELF TEST button.
8.
Enter the machine’s normal operating speed.
9.
With the pump not running, fully open the main line hand valve and the bypass #1 hand valve.
10.
Completely close the agitator line hand valve.
11.
If a centrifugal pump is used, proceed to the next step. If a positive displacement pump is used, fully open
the pressure relief valve (PRV).
12.
Run the pump at normal operating RPMs.
13.
If a centrifugal pump is used, proceed to the next step. If a positive displacement pump is used, complete
the following steps:
a.
Turn the Master ON/OFF switch to OFF.
b.
Close the bypass #1 hand valve.
c.
Set the PRV to 65 psi [450 kPa].
d.
Open the bypass #1 hand valve.
e.
Turn the Master ON/OFF switch to ON.
14.
Verify that each boom valve is operational and not nozzles are plugged in by operating the boom ON/OFF
switches.
15.
Turn all boom ON/OFF switches to ON.
16.
Hold the FLOW CONTROL switch in the INC position for approximately 12 seconds. This ensures that the
motorized control valve is fully closed.
17.
Adjust the agitator line hand valve until the desired agitation is reached.
18.
If necessary, close the main line hand valve to set the desired maximum operating pressure.
Note:
The maximum pressure should be approximately 10 psi [70 kPa] above the normal spraying
pressure. For example, if the normal spraying pressure is 30 psi [210 kPa], set the maximum
pressure to 40 psi [280 kPa].