ESAB MIG C250i Instruction Manual page 13

Beware of static
In order to protect the semiconductor components and PCBs from
the static damage, please wear antistatic device or touch the
metal part of the enclosure to remove static in advance before
contacting the conductors and PCBs of the machine internal
wiring.
Keep it dry
Avoid rain, water and vapor infiltrating the machine. If there is, dry
it and check the insulation of the welding machine (including that
between the connections and that between the connection and
the enclosure) with an ohmmeter. Only when there are no
abnormal phenomena anymore, can the machine be used.
Put the machine into the original packing in dry location if it is not
to be used for a long time.
Pay attention to maintenance
Periodic check should be carried out to ensure the long-term
normal use of the machine. Be careful when doing the periodic
check, including the inspection and cleaning of the machine
interior.
Generally, periodic check should be carried out every 6 months,
and it should be carried out every 3 months if the welding
environment is dusty or with heavy oily smoke.
Beware of corrosion
Please clean the plastic parts with neutral detergent.
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