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8.
CONNECTION PROCEDURE AND GROUND FOR SAFETY USE (continued)
8.3 Connecting of the Gas Hose
WARNING
٨
There is a danger of suffocation caused by lack of oxygen when shield gas
keeps drifting in a closed place. Be sure to turn off the shield gas at the main
when the welding power source is not in use.
CAUTION
٨
Be sure to connect the gas hose after fixing gas cylinder to the stand, as physical injuries
may result from falling down of it.
٨
Attach a proper gas regulator to a gas cylinder. Failure to observe the demand may result in
physical injuries. The gas regulator for high pressure gas must be used.
1. Securely attach the gas hose to the gas inlet located on the rear side of the Welding power source
with a monkey wrench, etc.
2. Fix the nut for attaching the gas cylinder to the gas cylinder with a monkey wrench, etc.
3. Securely attach the gas hose to the gas outlet with a monkey wrench, etc.
8.4 Grounding and Connecting of Input Power Source
WARNING
Observe the following to prevent electric shock.
Do not touch the live electrical parts; otherwise, you might receive serious electric shock or get
burned.
٨
Do not touch the live electrical parts.
٨
Have a qualified electric engineer ground the case of the welding power source. Have a
qualified electric engineer ground the base metal or jig electrically connected, following a
local law.
٨
Connect the welding machine with all the line disconnect switches inside the switch box
turned off.
٨
Attach the case properly after connecting the cable.
٨
When the welding machine is used in a humid environment such as a construction site, on a
steel plate, or on a steel structure, install a leakage breaker.
Gas
cylinder
Gas
outlet
Ԙ
ԙ
Ԛ
Pressure gauge
Welding
Power
source
Nut
for
attaching
gas
cylinder
Gas regulator