Mechanical Faults - Hardi HC5500 Instruction Book

Mechanical faults

FAULT
No speed readout.
Error message that fuse is active.
Error message "Low voltage".
Speed readout not stable.
Attempt to release lock, but no "release"
signal from lock sensor.
Attempt to lock, but no "lock" signal on
sensor input.
Lock is detected released unintentionally.
Lock is detected released.
Lock is detected locked unintentionally.
No lock release when hydraulic pressure is
established, and the HC 5500 is powered up.
Power to Jobcom.
Rear angle sensor alarm.
PROBABLE CAUSE
Incorrect speed sensor location chosen.
Defect sensor or cable.
Short circuit in system. The Spray box has 3
thermal fuses:
Fuse 1 = Section valves to left side of centre
and centre switch.
Fuse 2 = Section valves to right of centre
switch.
Fuse 3 = Short circuit in options and
pressure regulation.
Voltage below 9 Volts.
Perforated wheel transducer plate fitted
back the front.
Speed transducer set to close to upper or
lower sides of perforated wheel sensor
plate.
No hydraulic pressure.
Misadjusted lock sensor.
Mechanical defect.
Lock sensor misadjusted.
Mechanical defect prevents lock to
penetrate hole.
Misadjusted rear angle sensor.
Poor lock sensor adjustment. Lock cylinder
fallen off.
Hydraulic pressure established. Misadjusted
lock sensor.
Missing hydraulic pressure on lock cylinder. Check pressure from tractor.
Misadjusted lock sensor.
Hydraulic pressure hoses P and T are turned
around.
Power supply not sufficient.
The power cable to the Jobcom has to be a
unbroken power line from the battery.
In menu 4.7 the rear angle sensor will read
app. 0.02 Volt.
12 - Fault finding
CONTROL/REMEDY
Select the correct sensor on Sprayer, Tractor or Radar in menu [3.1.1 ,
3.1.2 or 3.1.3].
Check sensor using menu [4.5.2 Speed].
Turn power OFF and locate problem.
When fuses has cooled down the system can be powered on again.
Check battery and connections.
Relocate transducer.
No hydraulic pressure.
Misadjusted lock sensor.
Mechanical defect.
Adjust lock sensor gap to max. 5 mm.
Change defected parts.
Adjust rear angle sensor to center.
Re-fit new lock cylinder. Adjust lock sensor gap to max. 5 mm.
Adjust lock sensor gap to max. 5 mm.
Adjust sensor gap to lock to max. 5 mm.
Turn hydraulic pressure around.
T = blue P = red.
The cable from the battery to Jobcom has to be 6 square millimetres.
Fit 72266300 tractor power cable.
The fuse on the cable has to be 25A.
Check 10A fuse on DAH PCB in the Jobcom.
Check sensor cables for damage.
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