Hardi 5500

39
HARDI CONTROLLER 5500
Fault finding
Failure Reason Repair
Area is not being Boom width or speed constant Enter the values in menu [3.3.1 Width]
measured. have not been entered. and [3.1 Speed calibration].
No pulses are coming from the Check the sensor, check the cable to the sensor
speed sensor. for damage. If necessary, replace the sensor.
Check sensor location [3.1 Speed calibration].
The volume rate Constant has not been entered. Enter constant in menu [3.2.1 Flow calibration].
L/ha is continuously
displayed at "0".
Pulses of the flow meter are not Check wiring. Check the impeller of the flow
reaching the sprayer control unit. meter - it may be stuck.
The volume rate display The flow meter is not working Test the flow meter using menu [4.5.1 Flow].
is not correct. properly.
The area is not being registered Check boom width and adjust if necessary.
exactly. Re-calibrate speed [3.1 Speed].
The intended volume The pressure motor has been wrongly Check the control by using the +/- keys in
rate cannot be reached. poled. The rate is controlled down- manual mode. Change the control motor
The volume is wards instead of upwards. connections if necessary.
below the pre-set rate.
The pump cannot deliver the Increase PTO speed. Change to a lower
required amount. gear.
The filters are blocked. Clean the filter.
The volume rate lies The pressure motor has been wrongly Check the control by using the +/- keys in
above the pre-set rate. poled. The rate is controlled up- manual mode. Change the control motor
wards instead of downwards. connections if necessary.
The return flow from the pressure Check the tube system. Reduce the power of
motor to the tank cannot take super- the pump (lower PTO speed, higher gear).
fluous quantity.
No speed readout. Incorrect speed sensor location chosen. Select the correct sensor on Sprayer,
Tractor or Rada r in menu [3.1.1 , 3.1.2 or 3.1.3].
Error message that Short circuit in system. Turn power OFF and locate problem.
fuse is active. Fuse 1 = Section valves to left of centre
and centre.
Fuse 2 = Section valves to right of centre.
Fuse 3 = Short circuit in all other switches.
Error message Low voltage. Check battery and connections.
"Low voltage".