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B-1
OPERATION
B-1
WELDING SPARKS can cause
fire or explosion.
• Do not weld near flammable material .
• Do not weld on containers that have
held flammable material.
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MOVING PARTS can injure.
• Keep away from moving parts
• Do not operate with doors open or
guards off.
• Stop engine before servicing.
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ENGINE EXHAUST can kill.
• Use in open, well ventilated areas or
vent exhaust outside.
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ADDITIONAL SAFETY PRECAUTIONS
Always operate the welder with the hinged doors
closed as these provide maximum protection from
moving parts and insure proper cooling air flow.
Read carefully the Safety Precautions page in the
Instruction Manual before operating this machine.
Always follow these and any other safety procedures
included in this manual and in the engine and com-
pressor instruction manuals.
GENERAL DESCRIPTION
The SAE400 or SAE400 WELD’N AIR is a diesel
engine driven welding power source. The machine
uses a DC generator for DC stick electrode welding
and an AC exciter for 115/230 VAC auxiliary power. As
a generator it can supply up to 3,000 watts of 115/230
volt AC power. As a welder it provides up to 575 amps
of DC constant current output. The belt driven air com-
pressor of the SAE400 WELD’N AIR provides 35 CFM
at 100 PSI compressed air.
The engine is a 71 Hp (54kw), 4-cylinder water cooled
diesel made by Perkins.
OPERATING INSTRUCTIONS
Read and understand this entire section before operat-
ing your equipment.
SAFETY INSTRUCTIONS
Do not attempt to use this equipment until you have
thoroughly read all operating and maintenance manu-
als supplied with your machine. They include important
safety precautions, detailed engine starting, operating
and maintenance instructions and parts lists.
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts or
electrodes with your skin or wet cloth-
ing.
• Insulate yourself from the work and
ground.
• Always wear dry insulating gloves.
• Do not use AC welder if your clothing, gloves or
work area is damp or if working on, under or
inside workpiece.
Use the following equipment:
• Semiautomatic DC constant voltage
(wire) welder.
• DC manual (stick) welder.
• AC welder with reduced voltage con-
trol.
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ARC RAYS can injure eyes and
burn skin.
• Wear eye, ear, and body protection.
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• Only qualified personnel should install, use or
service this equipment.
• Consult instruction manual before operating.
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Before operating, read and understand the manu-
facurer’s instructions for this equipment and the
consumables to be used including the Material
Safety Data Sheet (MSDS) and follow your
employer’s safety practices.
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FUMES AND GASES can be dangerous to
your health.
• Keep your head out of fumes.
• Use enough ventilation or exhaust at the arc, or
both, to keep the fumes and gases from your
breathing zone and general area.
SAE400 & SAE400 WELD’N AIR
WARNING