2. air supply precaution, Use only oil free dry compressed air – Miller Electric UPC 838 User Manual
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Warning! Watch Out! There
are possible hazards as
shown by the symbols.
2
Electric shock from wiring can
kill.
3
Disconnect input plug or
power before working on
machine.
4
Hazardous voltage remains
on input capacitors after
power is turned off. Do not
touch fully charged
capacitors.
5
Always wait 60 seconds after
power is turned off before
working on unit, OR
6
Check input capacitor voltage,
and be sure it is near 0 before
touching any parts.
7
When power is applied failed
parts can explode or cause
other parts to explode.
8
Flying pieces of parts can
cause injury. Always wear a
face shield when servicing
unit.
9
Always wear long sleeves and
button your collar when
servicing unit.
10 After taking proper
precautions as shown,
connect power to unit.
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3-2. Air Supply Precaution
H
2
O
+
=
Use Only Oil Free
Dry Compressed Air