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The following operation requires sufficient 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 disconnected from
the electricity utility before uncovering the welding machine.
The following operation requires sufficient 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 disconnected from
the electricity utility before uncovering the welding machine.
a) arc extinguishing at the outside of weld bead b) arc extinguishing on the weld bead
Fig.10 Arc extinguishing modes
7) Weldment cleaning
Clean welding slag and spatter with wire brush and tools the like after welding.
14. MAINTENANCE
1) Check periodically whether inner circuit connection is in good condition (esp. plugs). Tighten the
loose connection. If there is oxidization, remove 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 ma
chine 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 ti
me.
15.TROUBLESHOOTING
15.1 Common Malfunction Analysis and Solution:
Malfunction Phenomena Causes and Solutions
Turn on the machine, the power LED is off, the
fan doesn't work, and no welding output.
(1) Check if the power switch is closed.
(2) No input power.
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