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DC ARC WELDING INVERTER
8
it with sandpaper and then reconnect
2. Keep hands, hair and tools away from the moving parts such as the
fan to avoid personal injury or machine damage
3. Clean the dust periodically with dry and clean compressed air. If
welding environment with heavy smoke and pollution, the machine
should be cleaned daily. The pressure of compressed air should be at
a proper level in order to avoid the small parts inside the machine being
damaged.
4. Avoid rain, water and vapor infiltrating the machine. If there is, dry it
and check the insulation of the equipment (including that between the
connections and that between the connection and the enclosure). Only
when there are no abnormal phenomena anymore, can the machine be
used.
5. Check periodically whether the insulation cover of all cables is in good
condition. If there is any dilapidation, rewrap it or replace it.
6. Put the machine into the original packing in dry location if it is not to
be used for a long time.
TROUBLE SHOOTING
The following operation requires professional 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.
.
COMMON MALFUNCTION ANALYSIS AND SOLUTION:
Malfunction Phenomena
Cause and Solution
Turn on the machine, the power
LED is off, the fan doesn›t work,
and no welding output
Check if the power is closed No input
power