INSTRUCTION MANUAL
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Connect the CO
2
tube, which come from the wire-feeder
to the copper nozzle of gas bottle. The gas supply
system includes the gas bottle, the air regulator and the
gas hose, the heater cable which plug should be insert
into the socket of machine’s back, and use the hose
clamp to Tighten it to prevent leaking or air-in, so that
the welding point is protected.
Please note:
1) Leakage of shielding gas affects the performance
of arc welding.
2) Avoid the sun shining on the gas cylinder to
eliminate the possible explosion of gas cylinder
due to the increasing pressure of gas resulted by
heating of sun shining.
3) It is extremely forbid to knock at gas cylinder and
lay the cylinder horizontally.
4) Ensure no person is up against the regulator,
before the gas release or shut the gas output.
5) The gas output volume meter should be installed
vertically to ensure the precisely measuring.
6) Before the installation of gas regulator, release
and shut the gas for several time in order to
remove the possible dust on the sieve to avail the
gas output.
MIG 250
i
