Lincoln Electric 4000 Recommended Applications, Operational Features and Controls, Limitations

B-2 OPERATION B-2

The Lincoln warranty covers the Power Arc 4000 (excluding the engine) for 2 years from the date of purchase. The engine is covered by the engine manu- facturer’s warranty policy.

RECOMMENDED APPLICATIONS

GENERATOR

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

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 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.

•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.

•Low noise engine muffler for quieter operation. (A Super Lo-Tone®muffler is available for the Briggs & Stratton 8 HP Kool Bore engine.)

•Easy-starting, No Maintenance, Electronic ignition.

•Low oil level engine shutdown protection is stan- dard equipment on machines produced after August 1998. On earlier engines an optional Oil Gard® kit is available from Briggs & Stratton.

WELDING CAPABILITY

The POWER-ARC 4000 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 capable 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 POWER-ARC 4000 can weld with all 3/32 and most 1/8 inch diameter Lincoln AC elec- trodes.

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.

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.

POWER-ARC 4000