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SECTION 7
TROUBLESHOOTING
GENERAL SPRAYER PROBLEMS
PROBLEM
1 . Boom arms/terracing won't operate and controller
is showing an error when the joystick operation is
used of open load.
2. Boom arms won't operate and controller is
showing an error when using the joystick
operation of Left or Right Pot.
3. All fans aren't operating. Either only the Left or
Right facing fans are spinning and the controller
is only showing one fan speed reading.
HOW TO TEST A UP-402 PROXIMITY SPEED SENSOR
1. Power the speed sensor by supplying 12 volts to the Brown positive wire and an earth to the Blue ground wire.
2. With your multimeter set to read DC voltage connect the multimeter's red terminal to the sensors signal wire and the multimeter's black terminal to the sensors ground wire.
The multimeter will read 12 volts when no metal pickup is present and when a metal pickup is detected the multimeter will read 0 volts.
PROBABLE CAUSE
REMEDY
Swap the fold function that isn't working with another coil to see if the fault
Failed HP-102-1 fold coil.
follows the coil or wiring.
Press HYD on the spray screen and then press on the left and right arrows in
Failed/damaged rotary fold sensor.
the bottom right corner and disabled "Auto Fold". This will allow you to fold the
boom arms wherever you want until the rotary sensor issue can be fixed.
The fan speed sensor on the fans that are spinning has failed. The fusion system
Failed fan speed sensor.
uses the fan speed sensors to control the fan speed coils and if one fails this side
goes to full speed as it is looking for an rpm reading.
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