Haigh Quattro, Руководство по эксплуатации и техническому обслуживанию

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Operating & Maintenance Manual
www.haigh.co.uk 900-029082-4 – Dec 16 52
Troubleshooting
Problem Possible Causes / Resolution
Latch not engaged, display flashes
F1 Latch not engaged after three attempts
• Lid latch not correctly fastened.
• Note - Occurs after three failed attempts to latch the lid closed. Make sure that
the lid interlock is correctly adjusted, adjusted if required.
F2 Safety monitor circuit malfunction
Interlock micro switch circuit broken during machine operation.
Remove lid cover:
• Check micro switch (MS-1 and MS-2) operation.
•
Check MS-1 and MS-2 circuits for continuity.
F3 Contactor circuit fault
•
Check operation of rear positive break switch.
•
Main contactor fault.
• Check contactor connections, replace contactor if necessary.
F4 Overload trip.
• Motor has tripped out on overload, probably jammed:
•
Switch off at isolator and remove the obstruction from the hopper.
F5 Drain Block Stage 1
•
Pressure in hopper has built up to trigger the pressure switch but the machine
recovered and continued.