SWEISS
WELD.COM
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13
§5 Maintenance
5.1 Basic Troubleshooting Guide
WARNING
There are extremely dangerous voltage and power levels present inside this unit. Do not attempt to
diagnose or repair unless you have had training in power electronics measurement and
troubleshooting techniques.
5.1.1 Basic troubles
A.
Turn on the machine, the power indicator lights up, but both of the fan and the air control valve
is no action.
1.
Absent Phases. Please check the input lines, and connect it correctly.
2.
The
main board in the machine is break
. Please ask the qualified technician to change it.
B.
Turn on the machine, the TIP/GUN/GAS indicator lights up.
1.
Gas pressure is too low. Adjust the gas pressure to 65psi/4.5bar. The Barometer indicate to
0.45~0.5MPa.
C.
Turn on the machine, the TIP/GUN/GAS indicator glitter.
1.
The shield cup is unfitted installation, Turn off the power source, install and screw it properly, then
turn on the power source.
2.
The Tip or electrode is unfitted installation, Turn off the power source, and install and screw shield
cup properly, then turn on the power source.
D.
The temperature indicator lights up after the machine working a few of minutes.
1.
Airflow blocked, check for blocked airflow around the unit and correct condition.
2.
Fan blocked, check and correct condition.
3.
The machine is over-heat, let it cool down for at least 5 minutes. Make sure the machine has not
been operated beyond the Duty Cycle (refer to technology parameters in Section 2).
4.
Input voltage over the normal range, choosing the proper voltage (refer to technology parameters in
the Section).
5.
Faulty components in the machine, return for repair or have qualified technician repair per Service
Manual.
