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B-1
OPERATION
B-1
GENERAL DESCRIPTION
The SAE400 WELD’N AIR is a diesel engine driven
welding power source. The machine uses a DC gen-
erator 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 compressor provides
35 CFM at 100 PSI compressed air.
The engine is a 63 Hp (47kw), 4-cylinder water cooled
diesel made by Perkins.
RECOMMENDED APPLICATIONS
WELDER
The SAE400 WELD’N AIR provides excellent constant
current DC welding output for stick (SMAW) welding.
The field installed optional CV Adapter (K385-1) pro-
vides up to 500 amps at 35 volts of constant voltage
output for semiautomatic welding.
AUXILIARY POWER
The SAE400 WELD’N AIR provides 3 KW of 115/230
VAC output for auxiliary power and emergency stand-
by power.
COMPRESSED AIR
The SAE400 WELD’N AIR provides 35 CFM at 100
PSI compressed air for air arc gouging and air powered
tools.
OPERATING INSTRUCTIONS
Read and understand this entire section before operat-
ing your SAE400 WELD’N AIR.
SAFETY INSTRUCTIONS
Do not attempt to use this equipment until you have
thoroughly read all operating and maintenance man-
uals supplied with your machine. They include impor-
tant safety precautions, detailed engine starting, oper-
ating and maintenance instructions and parts lists.
ELECTRIC SHOCK can kill.
•Do not touch electrically live parts such
as output terminals or internal wiring.
•Insulate yourself from the work and
ground.
•Always wear dry insulating gloves.
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ENGINE EXHAUST can kill.
•Use in open, well ventilated areas or
vent exhaust outside
•Do not stack anything near the engine.
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MOVING PARTS can injure.
•Do not operate with doors open or
guards off.
•Stop engine before servicing.
•Keep away from moving parts
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Only qualified personnel should operate this equipment.
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.
SAE400 WELD’N AIR
WARNING