BUG-O Systems BGW-5000 - Manual (Page 34)

34
VI. TROUBLESHOOTING
Problems Possible Causes Recommended Action
Improper control or
feeding of welding
wire.
Lincoln welding control or power
supply is abnormal.
1. Check all fuses
2. Check Lincoln control switch is “on”
and polarity switch on the power
supplies must be in “+” or “-”.
3. Review Lincoln service manuals and
diagnose possible PCBs failures.
The indication light
of master control
fails to ignite.
1. Power supply is off.
2. 3 pin control cable connector is
loose.
3. 3 pin control cable is bad.
1. Turn on power supply.
2. Check 3 pin connector
3. Check 3 pin control cable
Flux vacuum
cannot operate
1. Bad vacuum relay in the control.
2. Vacuum itself is faulty
1. Replace control relay/switch
2. Replace flux vacuum
Lamp is off 1. Bad lighting relay in the control.
2. Control cable is loose or bad
3. Light bulb is bad.
1. Replace relay / switch
2. Check control cable & connector
3. Replace light bulb.
Electric winch
does not work
1. Control cable is loose or bad.
2. Winch failure
1. Check control cable & connector
2. Replace winch.
Main frame cannot
travel.
1. Bad travel direction switch
2. Bad speed potentiometer
3. Bad travel control relay
4. Incorrect inverter setting
5. Faulty inverter
6. Indicator Light “TRAVLE READY”
is off.
1. Replace switch
2. Replace potentiometer
3. Replace relay
4. Check inverter setting *
5. Replace inverter
6. Refer to following row
Indicator Light
“TRAVEL READY”
is off
1. Bad Indicator Light.
2. Switch Selector of NA3 control is
turned to “OFF”.
3. Bad sequence relay KA1
4. Sequence relay KA1 is loosen.
1. 1. Replace indicator Light
2. 2. Turn the switch selector to “ON” or
“AUTO”
3. Replace sequence relay KA1
4. Fix sequence relay KA1
Main frame travels
at manual mode
but not under auto
mode.
1.Welding control faults 1. Check welding control
* Please refer to Lincoln PF10A/NA3
manual for details.