F-15-047-A
February, 1995
Heliarc
®
250 AC/DC
SQUARE WAVE POWER SOURCES
NOTE: This manual is also suitable for use with L-TEC Heliarc 250 HF plus.
These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the principles of operation and
safe practices for arc welding equipment, we urge you to read our booklet, "Precautions and Safe Practices for Arc
Welding, Cutting, and Gouging", Form 52-529. Do NOT permit untrained persons to install, operate, or maintain this
equipment. Do NOT attempt to install or operate this equipment until you have read and fully understand these
instructions. If you do not fully understand these instructions, contact your supplier for further information. Be sure
to read the Safety Precautions (Section 1) before installing or operating this equipment.
Be sure this information reaches the operator.
You can get extra copies through your supplier.
INSTRUCTION MANUAL
P/N 31310 - Heliarc 250 AC/DC w/power factor
P/N 31300 - Heliarc 250 AC/DC w/o power factor
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