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.
•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®engine muffler for quieter operation. (A Super Lo-Tone®muffler is available from Briggs & Stratton.) Easy-starting Electronic Magnetron® igni- tion.
•Optional Oil Gard® low oil level engine shutdown kit 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. The POWER-ARC 4000 can, therefore, 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.
