Publicité
4. MAINTENANCE
ANY MAINTENANCE OPERATION MUST BE
CARRIED OUT BY QUALIFIED PERSONNEL.
4.1 MAINTENANCE OF THE WELDING
INVERTER
In the case of maintenance inside the machine, make
sure that the switch (8) is in position "O" and that
the power cord is disconnected from the mains. It is
also necessary to periodically clean the interior of
the machine from the accumulated metal dust, using
compressed air.
4.3 TROUBLESHOOTING & SERVICE
Symptom
Power indicator does not light, fan
does not turn, no welding output.
Fan switch, or not subject to
potential instability in the welding
current control, current, big,
sometimes small.
Power indicator light shows the
normal fan rotating normal, no
welding output.
Hot welding clamp.
Manual welding big splash.
4.2 PRECAUTIONS AFTER REPAIRS
After making repairs, take care to organize the wiring
so that there is secure insulation between the primary
and secondary sides of the machine. Do not allow the
wires to come into contact with moving parts or those
that heat up during operation. Reassemble all clamps
as they were on the original machine, to prevent a
connection from occurring between the primary and
secondary circuits should a wire accidentally break or
be disconnected. Also mount the screws with geared
washers as on the original machine.
Solution
1. Make sure the power switch is turned on.
2. Confirm that the power input cable are connected with electricity.
1. The current potential is damaged, should be replaced.
2. bad connections, such as plug-in to be checked.
1. Check all connectors inside the machine if there is bad contact.
2. Check if a circuit output connection is bad.
3. The alarm indicator light:
(1)that access to protected status because of overheating, in which
case, To maintain power, so that the temperature dropped to the
machine fan Reasonable temperature, until light goes out, you can
continue working;
(2)Check the thermal switch is damaged, such damage, to be
Replacement.
Welding clamp rated current is too small, the replacement of larger size
welding clamp.
Output polarity is unreasonable, reversed output connector.
17
Publicité
