Troubleshooting - GALAGAR KENNEDY 140 Manual Técnico De Instrucciones

Gala Gar

9. TROUBLESHOOTING

Common Malfunction Analysis and Solution:
Malfunction Phenomena
Turn on the machine, the power LED is off,
the fan doesn't work, and no welding output.
Turn on the machine, the fan works, but the
output current is unstable and can't be
controlled by potentiometer when welding.
Turn on the machine, the power LED is on,
the fan works, but no welding output.
The electrode holder becomes very hot.
Excessive spatter in MMA welding.
We are still constantly improving this welder, therefore, some parts of this welder may
be changed in order to achieve the better quality, but the main functions and operations
will not be alternated and changed. Your understanding would be greatly appreciated.
The following operation
knowledge on electric aspect and comprehensive safety
knowledge. Operators should be holders of valid qualification
certificates which can prove their skills and knowledge. Make
sure the input cable of the machine is cut off from the electricity
utility before uncovering the welding machine.
Cause and Solution
1. Check if the power switch is closed.
2. No input power.
1. The current potentiometer fails. Replace it.
2. Check if any loose contact exists inside the
1. Check if any loose contact exists inside the
2. Open circuit or loose contact occurs at the
3. The overheating LED is on.
The rated current of the electrode holder is
smaller than its actual working current. Replace
it with a bigger rated current.
The output polarity connection is incorrect.
Exchange the polarity.
requires sufficient
machine. If any, reconnect.
machine.
joint of output terminal.
c) The machine is under over-heating
protection status.
automatically after the welding machine
is cooled.
d) Check if the thermal switch is ok.
Replace it if damaged.
professional
It can recover
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