Troubleshooting - gala gar SMART PRO 5.0 Manual Técnico De Instrucciones

5.2 Troubleshooting

5.2 Troubleshooting
5.2 Troubleshooting 5.2 Troubleshooting
Before arc welding machines are dispatched from the factory, they have already been debugged
accurately. So forbid anyone who is not authorized by our company to do any change to the equipment!
Maintenance course must be operated carefully. If any wire becomes flexible or is misplaced, it maybe
potential danger to user!
Only professional maintenance personal who is authorized by our company could overhaul the machine!
Guarantee to shut off the arc welding machine's power before turn on the outline of the equipment!
If there is any problem and has no the authorized professional maintenance personal of our company,
please contact local our company agent or the branch companyIf there are some simple troubles of GM-
3150(PFC) welding machines, you can consult the following overhauling chart:
S/N Troubles
Turn on the power source,
1 and fan works, but the power
light is not on.
Turn on the power source,
2 and the power light is on, but
fan doesn't work
Turn on the power source,
3 and the power light is not on,
and fan doesn't work
4 No no-load voltage output
No current output in the
5
welding
Not easy to start arc in the
6 welding, or easy to cause
sticking
The arc is not stable in the
7
welding process
The welding current can
not be
8
adjusted
The penetration of molten
9
pool is not enough(MMA)
SMART PRO 5.0
Reasons
The power light damaged or
connection is not good
Power PCB failures
There is something in the fan
The fan motor damaged
No input voltage
Overvoltage (Input voltage is too
much or not)
There is trouble
machine
Welding cable is not connected
with the two output of the welder.
Welding cable is broken
Earth cable is not connected or
loosen
The plug loosen or connect not
well
Oil or dust covered the workpiece
MMA/TIG welding selection is
wrong
The arc force is too small
The welding current potentiometer
in the front panel connection not so
good or damaged
The welding current adjusted too
low
Solutions
Test and repair the inside
circuit of power light Pr3
Repair or change power
PCB Pr2
Clear out
Change fan motor
Check whether there is
input voltage
Check input voltage
inside the Check the main circuit, Pr1
and Pr2
Connect the welding cable
to the welder's output
Wrap, repair or change the
welding cable
Check the earth clamp
Check and tighten the plug
Check and clear out
Selecting the MMA welding
Increase the arc force
Repair
potentiometer
Increase
current
Pág. 36
or change the
the welding