USER MANUAL 7
Remember to observe the max load current at any moment (refer to the
corresponding duty cycle). Make sure that the welding current should
not exceed the max load current. Overload could obviously shorten the
machines lifespan, or even damage the machine
2.3 Over-voltage is forbidden
Regarding the power supply voltage range of the machine, please
refer to «Main Parameters» table. This machine is of automatic voltage
compensation, which enables the maintaining of the voltage range within
the given range. In case that the input voltage exceeds the stipulated
value, it would possibly damage the components of the machine
2.4 An earth terminal is available for the machine. Connect it with an
earth cable (section>=5mm2) to avoid the static and electric shock
2.5 A sudden halt may occur with the red LED on the front panel on
while the machine is of over-load status. Under this circumstance, it
is unnecessary to restart the machine. Keep the built-in fan working to
lower the temperature inside the machine. Cutting can be continued
after the inner temperature falls into the standard range and the red LED
is off.
MAINTENANCE
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 cut off from
the electricity utility before uncovering the welding machine
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
