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Flow Meter & Controller
Use the following procedures to the manually
override the boom valves and control valve if the
Raven console has failed or is otherwise not able to
operate them:
FLOW CONTROL VALVE OVERRIDE
1. Remove electric motor from three way fast close
valve, and manually rotate valve until desired
spraying pressure is achieved.
2. Drive the sprayer at a constant speed in order
to apply the required application volume as
determined by the nozzle selection chart.
The sprayer should then be able to be operated in
order to empty the tank. Once the sprayer is empty
of chemical, partially fill the tank with fresh water
(no chemical) so that testing can be performed in
order to correct the problem. Repair or replace the
console as soon as possible.
BOOM VALVE OVERRIDE
1. Disconnect console from console cable.
2. Remove Cap from boom valves.
3. Remove Shaft locking Screw.
4. Wind plunger shaft anti-clockwise to open valve.
5. To start and stop spraying through the nozzles,
start and stop the pump.
NOTE: There is no agitation while the nozzles are
not spraying.
Testing Raven Flow Meter Cable
1.
Change meter Cal number to 1 with the [Meter
Cal] key.
2.
Press [total volume] key and place boom
switches ON.
3.
With a jumper wire e.g. paper clip, short
between 6 o'clock and 2 o'clock sockets with
a "short" then "no short" motion. Each time
contact is made the [total volume] should move
up in increments of 1 or more.
4.
If total volume does not count up, perform test
at the next connector closer to the console.
If this next test works, the previous section of
cable must be faulty and should be replaced.
5.
Perform the voltage checks shown below.
6.
Change [Meter Cal] number back to previous
number.
Prairie 1500-3000L Operator's Manual MY17-MY19 - REV 0
+5V DC
Keyway
10 o'clock
Power
6 o'clock
Signal
Voltage Readings
2 o'clock - 6 o'clock (+5V DC)
10 o'clock - 2 o'clock (+5V DC)
Chapter 11 - Troubleshooting - 73
2 o'clock
Ground
+5V DC
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