Lincoln Electric 50448 Service Manual page 38

Gas Connection
WARNING
CYLINDER may explode if damaged.
Always fix the gas cylinder securely in an
upright position, against a cylinder wall
rack or purpose-made cylinder cart.
Keep cylinder away from areas where it may
be damaged, heated or electrical circuits to
prevent possible explosion or fire.
Keep cylinder away from welding or other live
electrical circuits.
Never lift welder with cylinder attached.
Never allow welding electrode to touch
cylinder.
Build up of shielding gas may harm health or
kill. Use in a well-ventilated area to avoid
gas accumulation.
Close the gas cylinder valves thoroughly when
not in use to avoid leaks.
WARNING
Welding machine supports all suitable shielding gases at
a maximum pressure of 5,0 bar.
WARNING
Before use, make sure that the gas cylinder contains gas
suitable for the intended purpose.
Turn off input power at the welding power source.
Install a proper gas flow regulator to the gas cylinder.
Connect the gas hose to the regulator using the hose
clamp.
The other end of gas hose connect to the gas connector
on the power source rear panel or directly to the quick
connector located on the rear panel of the wire feeder
[8]. More details you will found in power source
instruction manual.
Connect by dedicated
„Accessories" chapter) wire feeder and power source.
Turn on input power at the welding power source.
Open the gas cylinder valve.
Adjust the shielding gas flow of the gas regulator.
Check gas flow with Gas Purge Switch [14].
WARNING
To weld GMAW process with CO
heater should be used.
interconnection cable (see
shielding gas, CO gas
2 2
Transport and Lifting
Falling equipment can cause injury and
damage to unit.
During transportation and lifting with a crane, adhere to
the following rules:
The device contains elements adapted for transport.
For lifting a suitable lifting equipment capacity.
For lifting and transport use only dedicated belt [51] which
is basic wire feeder equipment.
WARNING
Welding operation under lifting is permitted only with belt
[51].
Figure 74
WARNING
51