Mechanical Faults - Hardi HC5500 Instruction Book

11 - Fault finding

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 unintentional-
ly.
Lock is detected released.
Lock is detected locked unintentionally.
No lock release when hydraulic pres-
sure is established, and the HC 5500 is
powered up.
Power to Jobcom.
Rear angle sensor alarm.
Unable to lock the Safetrack.
Jobcom not responding or unintended
function.
11.4
PROBABLE CAUSE
Incorrect speed sensor location chosen.
Short circuit in system.
Fuse 1 = Section valves to left of center and
center.
Fuse 2 = Section valves to right of center.
Fuse 3 = Short circuit in all other switches.
Low voltage.
Perforated wheel transducer plate fitted
back the front.
Speed transducer set too 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.
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.
The back angle sensor possibly need adjust-
ment.
Communication error.
CONTROL/REMEDY
Select the correct sensor on Sprayer,
Tractor or Radar in menu [3.1.1 , 3.1.2 or 3.1.3].
Turn power OFF and locate problem.
Check battery and connections.
Relocate transducer.
Check pressure from tractor. Adjust sensor gap to lock to max.
3/16" (5 mm).Change defected parts.
Adjust lock sensor gap to max. 3/16" (5 mm). Change defec-
tive parts. Adjust rear angle sensor to center.
Re-fit new lock cylinder.
Adjust lock sensor gap to max. 3/16" (5 mm).
Check pressure from tractor. Adjust sensor gap to lock to max.
3/16" (5 mm).
Turn hydraulic pressure around.
T = blue P = red.
The cable from the battery to Jobcom has to be 10 awg. Fit
72266300 tractor power cable. The fuse on the cable has to be
25A.
Check 10A fuse on DAH PSB in the Jobcom.
A 16-17 mm bolt is pasted in the calibrating hole on the lock.
Then the rear angle sensor is adjusted to 2.50 Volt.
Check menu E9.2 All cables connections in the Jobcom,
Junction box and track assembly box is checked, retighten
screw on the cables plugs.