Lincoln Electric BULLDOG SVM208-A - Manual (Page 18)

OPERATION B-2 B-2
BULLDOG® 140
SAFETY INSTRUCTIONS
Read and understand this entire section before oper-
ating your Bulldog® 140.
Do not attempt to use this equipment until you
have thoroughly read all the operation and mainte-
nance manuals 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
clothing.
• Insulate yourself from the work and ground.
• Always wear dry insulating gloves.
FUMES AND GASES can be
dangerous.
• Keep your head out of fumes.
• Use ventilation or exhaust to remove
fumes from breathing zone.
WELDING SPARKS can cause
fire or explosion.
• Keep flammable material away.
• Do not weld on containers that have
held combustibles.
ARC RAYS can burn.
• Wear eye, ear, and body protection.
ENGINE EXHAUST can kill.
• Use in open, well ventilated areas or
vent exhaust to the outside.
• Do not stack anything on or near the
engine.
MOVING PARTS can injure.
• Do not operate this equipment with
any of its doors open or guards off.
• Stop the engine before servicing it.
• Keep away from moving parts.
Only qualified personnel should install, use, or
service this equipment.
WARNING
GENERAL DESCRIPTION
The Bulldog® 140 is a generator/welder designed for
home use and other non-commercial applications. As a
generator it can supply up to 4,000 continuous watts (or
5,500 surge watts) of 120/240 volt, single-phase AC
power. As a welder it provides 125 amps of AC constant
current for welding with AC stick electrodes. A single
dial provides continuous adjustment of welding output.
The machine is lightweight, portable, and can be lifted
by two people.
The Lincoln warranty covers the Bulldog® 140 (exclud-
ing the engine) for 3 years from the date of purchase.
The engine is covered by the engine manufacturer’s
warranty policy.
RECOMMENDED APPLICATIONS
GENERATOR
The Bulldog® 140 gives AC generator output for medi-
um use, non-commercial demands. For more details on
operating the generator, see GENERATOR OPERA-
TION in the OPERATION section of this manual.
WELDER
The Bulldog® 140 provides excellent constant current
AC welding output for stick (SMAW) welding. For more
details on using the machine as a welder, see WELD-
ING OPERATION in the OPERATION section of this
manual.
OPERATIONAL FEATURES AND
CONTROLS
The Bulldog® 140 was designed for simplicity.
Therefore, it has very few operating controls. A single
dial on the control panel lets you select either genera-
tor or welding use. For welding, the same dial selects
continuous current output over the machine’s 70 to 125
amp range.
The gasoline engine controls include a recoil starter,
choke, and rotary stop switch. See ENGINE OPERA-
TION in the OPERATION section of this manual and
the engine owner’s manual for details about starting,
running, stopping, and breaking in the gasoline engine.
WELDING CAPABILITY
The Bulldog® 140 is rated 125 amps, 20 volts at 30%
duty cycle on a ten-minute basis. This means that you
can load the welder to 125 amps for three minutes out
of every ten-minute period. The machine is also capa-
ble of higher duty cycles at lower output currents. You
can load the welder to 100 amps for six minutes out of
ten for a 60% duty cycle.
The current is continuously variable from 70 to 125
amps AC. The Bulldog® 140 can weld with all 3/32 and
most 1/8 inch diameter Lincoln AC electrodes.
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