Working Environment; Overheating Protection - GALAGAR SMART MIG 350 MP Manual Técnico De Instrucciones

7. CAUTION

7.1 Working Environment

1) Welding should be carried out in dry environment with humidity of 90% or less.
2) The temperature of the working environment should be between -10℃ and 40℃.
3) Avoid welding in the open air unless sheltered from sunlight and rain. Keep it dry at all times and do not place it
on wet ground or in puddles.
4) Avoid welding in dusty area or environment with corrosive chemical gas.
5) Gas shielded arc welding should be operated in environment without strong airflow.
7.2 Ventilation
This welder can create powerful welding current that has strict cooling requirements that cannot be met with natural
ventilation. Therefore the built-in fan is very important in enabling the machine to work stable with effective cooling.
The operator should make sure that the louvers be uncovered and unblocked. The minimum distance between the
machine and nearby objects should be 30cm. Good ventilation is of critical importance to the normal performance
and lifespan of the machine.
7.3 Overvoltage is forbidden.
Regarding the power supply voltage range of the machine, please refer to "Main Parameters" table. This machine is
of automatic mains voltage compensation, which enables the maintaining of the voltage range within the given
range. In case that the input mains voltage exceeds the tolerance value, it would possibly damage the components of
the machine.
7.4 Overload is forbidden.
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 machine's
lifespan, or even damage the machine.

7.5 Overheating protection

A sudden halt may occur with the overheating LED 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. Welding can be continued after the inner temperature falls into the standard range and the
overheating LED is off.
8. MAINTENANCE
WARNING: 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.
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 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, the machine can 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) Replace the contact tip and drive roll timely. Clean the wire feeding tube periodically.
7) Check periodically whether the gas hose is in good condition. If there are any cracks, replace it.
8) Put the machine into the original packing in dry location if it is not used for long time
SMART MIG 350 MP 27