Recommended Applications; Operational Features And Controls; Design Features And Advantages; Welding Capability - Lincoln Electric POWER-ARC 4000 SVM103-A Service Manual

The POWER-ARC 4000 warranty covers the machine
for one year from the date of purchase. For non-
engine warranty claims, contact your nearest Lincoln
Authorized Field Service Facility. For engine warranty
claims, contact your nearest Briggs & Stratton service
center.
NOTE: The POWER-ARC 4000 is not meant for rental
or other commercial use.

RECOMMENDED APPLICATIONS

GENERATOR

The POWER-ARC 4000 gives smooth AC generator
output for medium use, non-commercial demands.
For more details on operating the generator, see GEN-
ERATOR OPERATION in the OPERATION section of
this manual.

WELDER

The POWER-ARC 4000 provides excellent constant
current AC welding output for stick (SMAW) welding.
For more details on using the machine as a welder,
see WELDING OPERATION in the OPERATION sec-
tion of this manual.
OPERATIONAL FEATURES AND
CONTROLS
The POWER-ARC 4000 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 8 HP Briggs & Stratton gasoline engine controls
include a recoil starter, choke, throttle control, and
piercing stop switch. See ENGINE OPERATION in the
OPERATION section of this manual for details about
starting, running, stopping, and breaking in the gaso-
line engine.
DESIGN FEATURES AND
ADVANTAGES
• Stick welding (SMAW) process capability with out-
put range from 70 - 125 amps.
• Single-dial current output selection.
• Work and Electrode welding cable mounting termi-
nals.
OPERATION
• Separate ground stud for safe connection of case to
earth ground. Single 20 amp, 240 volt generator
receptacle.
• Duplex 20 amp, 120 volt generator receptacle.
• Integrated generator output overload protection
through two 20 amp circuit breakers.
• Welded-tube, full roll cage frame protects engine
and generator/welder.
• Lightweight, portable design.
• Rubber mounting isolates engine and generator
from frame to prevent machine "walking" during
use.
• Lo-Tone ®
Super Lo-Tone
Stratton.) Easy-starting Electronic Magnetron
tion.
• Optional Oil Gard
available from Briggs & Stratton.

WELDING CAPABILITY

The POWER-ARC 4000 is rated 125 amps, 18 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 capable of higher duty cycles at lower output cur-
rents. For example, 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.
weld with all 3/32 and most 1/8 inch diameter Lincoln
AC electrodes.

LIMITATIONS

• The POWER-ARC 4000 is not recommended for
any processes besides those that are normally per-
formed using stick welding (SMAW) procedures.
• The POWER-ARC 4000 is not recommended for
pipe thawing.
• During welding, generator power is limited to 100
watts, and output voltages can drop from 120 to 80
volts and 240 to 160 volts. Therefore, DO NOT
OPERATE ANY SENSITIVE ELECTRICAL EQUIP-
MENT WHILE YOU ARE WELDING.
engine muffler for quieter operation. (A
® muffler is available from Briggs &
® low oil level engine shutdown kit
The POWER-ARC 4000 can, therefore,
POWER-ARC 4000
B-2
® igni-