Lincoln Electric 500 manual Table B.3 Typical Current Ranges 1 for Tungsten ELECTRODES2

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B-8

 

 

 

 

OPERATION

 

 

 

B-8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table B.3 TYPICAL CURRENT RANGES (1) FOR TUNGSTEN ELECTRODES(2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DCEN (-)

DCEP (+)

Approximate Argon Gas Flow Rate

 

 

 

 

 

 

 

 

 

C.F.H. (l/min.)

 

 

 

 

 

Tungsten

 

 

 

 

 

 

 

 

 

 

Electrode

 

 

 

 

 

 

TIG TORCH

 

 

 

1%, 2%

1%, 2%

 

 

 

 

 

 

 

Diameter

 

 

 

 

Nozzle

 

 

 

Thoriated

Thoriated

Aluminum

Stainless Steel

 

 

 

in. (mm)

Size (4), (5)

 

 

 

Tungsten

Tungsten

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0 .010

(.25)

2-15

(3)

3-8

(2-4)

3-8

(2-4)

#4, #5, #6

 

 

0.020

(.50)

5-20

(3)

5-10

(3-5)

5-10

(3-5)

 

 

 

0.040

(1.0)

15-80

(3)

5-10

(3-5)

5-10

(3-5)

 

 

 

1/16

(1.6)

70-150

10-20

5-10

(3-5)

9-13

(4-6)

#5, #6

 

 

3/32

(2.4)

150-250

15-30

13-17

(6-8)

11-15

(5-7)

#6, #7, #8

 

 

1/8

(3.2)

250-400

25-40

15-23

(7-11)

11-15

(5-7)

 

 

 

5/32

(4.0)

400-500

40-55

21-25

(10-12)

13-17

(6-8)

#8, #10

 

 

3/16

(4.8)

500-750

55-80

23-27

(11-13)

18-22

(8-10)

 

 

 

1/4

(6.4)

750-1000

80-125

28-32

(13-15)

23-27

(11-13)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1)When used with argon gas. The current ranges shown must be reduced when using argon/helium or pure helium shielding gases.

(2)Tungsten electrodes are classified as follows by the American Welding Society (AWS):

Pure

EWP

1% Thoriated

EWTh-1

2% Thoriated

EWTh-2

Though not yet recognized by the AWS, Ceriated Tungsten is now widely accepted as a substitute for 2% Thoriated Tungsten in AC and DC applications.

(3)DCEP is not commonly used in these sizes.

(4)TIG torch nozzle “sizes” are in multiples of 1/16ths of an inch:

# 4 = 1/4 in.

(6 mm)

# 5

= 5/16 in.

(8 mm)

# 6

= 3/8 in.

(10 mm)

# 7

= 7/16 in.

(11 mm)

# 8

= 1/2 in.

(12.5 mm)

#10 = 5/8 in.

(16 mm)

(5)TIG torch nozzles are typically made from alumina ceramic. Special applications may require lava nozzles, which are less prone to breakage, but cannot withstand high temperatures and high duty cycles.

Commander 500 SETTINGS WHEN USING THE K799 HI-FREQ UNIT

•Set the WELD MODE switch to the “20-250 setting” (TIG)

•. Set the IDLER switch to the “HIGH “ position.

•Set the WELDING TERMINALS switch to the “Weld Terminals On” position. This will close the solid state contactor and provide an always “hot” electrode.

(Note: This is necessary because the K799 circuitry with respect to the #2 and #4 leads does not provide the prop- er signal to open and close the solid state contactor in the Commander 500).

Commander 500 SETTINGS WHEN USING THE K930-1 or -2 TIG MODULE

•Set the WELD MODE switch to the 20-250 Setting (TIG).

•Set the IDLER switch to the “AUTO “ position.

•Set the WELDING TERMINALS switch to the “Remotely Controlled” position. This will keep the solid state con- tactor open and provide a “cold” electrode until the trig- gering device (Amptrol or Arc Start Switch) is pressed.

COMMANDER 500

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Contents Safety Depends on You CommanderCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Section D Section CSection E Section FWelding Range Open Circuit Voltage Auxiliary Power1 InstallationHEIGHT2 Width Depth Weight Bore x StrokeLocation / Ventilation Safety PrecautionsStoring StackingLifting High Temperature OperationHigh Altitude Operation TowingEngine Cooling System Battery Connection PRE-OPERATION Engine ServiceOIL Fuel USE Diesel Fuel onlyHigh Frequency Generators for TIG Applications Remote ControlWelding Terminals Standby Power Connections Auxiliary Power ReceptaclesWelding Output Cables Machine GroundingPower Connection of the LN-25 to the Commander Connection of Lincoln Electric Wire FeedersConnection of LN-7 or LN-8 to the Commander Remotely Controlled Connection of AN LN-23P Wire Feeder to the CommanderDesign Features and Advantages Safety InstructionsOperation General DescriptionOther Features For Auxiliary PowerK1639-1 Commander 500 Standard Model Welding CapabilityRUN Stop Switch Controls and SettingsStart Pushbutton Fuel Level Gauge and LightEngine Alternator Ammeter K1639 Idler SwitchHour Meter Auxiliary Power Controls Starting the Engine Engine OperationStopping the Engine BREAK-IN Period Welder OperationTypical Fuel Consumption Stick WeldingTable B.3 Typical Current Ranges 1 for Tungsten ELECTRODES2 Commander 500 Settings When Using the K799 HI-FREQ UnitAuxiliary Power Operation Table B.4 Commander 500 Simultaneous Welding and Power Loads Optional Field Installed Accessories AccessoriesK899-1 Spark Arrestor KIT Easily mounts to standard muffler Recommended Optional Equipment Wire Feed Welding OptionsStick TIGRoutine and Periodic Maintenance MaintenanceEngine Maintenance Fuel PRE-FILTER/WATER Separator ASSEM- BLY Fuel FiltersWater Separator Element Cooling System Cooling Blower Belt Battery HandlingWelder / Generator Maintenance Nameplates / Warning Decals MaintenanceCleaning Brush Removal and ReplacementHOW to USE Troubleshooting Guide TroubleshootingPossible Areas SymptomsCourse of Action Function Problems Output Problems Commander 500 Wiring Diagram for 10838 and below Connection Diagram DiagramsConnection Diagram Diagrams Diagrams Commander / K867 / LN-8 Connection Diagram Diagrams Diagrams Diagram Engine Welders /LN-8 Connection DiagramConnection Electric Shock can killConnection Diagram Diagrams Diagrams M18962 Commander $700.00 Basic CoursePrecaucion Aviso DE
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500 specifications

The Lincoln Electric 500 is a hallmark of innovation in arc welding technology, designed to cater to the rigorous demands of both industrial applications and serious hobbyist projects. This powerful machine is known for its reliability, versatility, and user-friendly design, making it an essential tool for professional welders and those looking to tackle various welding tasks with ease.

One of the standout features of the Lincoln Electric 500 is its robust power output. With a capability of up to 500 amps, it can handle a wide range of welding processes, including Stick, TIG, and MIG welding. This flexibility allows welders to use the machine for different types of metals, including steel, stainless steel, and aluminum, making it suitable for diverse applications from automotive to construction industries.

The machine's digital interface enhances user experience by providing precise control over the welding parameters. The intuitive display allows for easy adjustments of voltage and wire speed, ensuring optimal welding conditions are achieved. This feature is especially beneficial for beginners who may require additional support as they learn the intricacies of welding.

The Lincoln Electric 500 is also equipped with advanced technologies that enhance efficiency and welding quality. One such technology is the inverter system, which optimizes the power source for superior arc stability and improved penetration. This results in cleaner welds with minimal spatter, reducing the need for post-welding cleanup. Furthermore, the machine’s duty cycle is impressive, meaning it can operate for extended periods without overheating, a critical factor in high-production environments.

Another significant characteristic of the Lincoln Electric 500 is its portability. Weighing in at a manageable level and designed with built-in carrying handles, it’s easy to transport between job sites. This feature is particularly valuable for mobile welders who need to work in various locations.

Safety is paramount in welding operations, and the Lincoln Electric 500 integrates various safety features designed to protect the user. Overload protection and thermal overload indicators help prevent damage to the machine and injury to the operator, ensuring a reliable and safe working environment.

Overall, the Lincoln Electric 500 stands out not only for its performance but also for its thoughtful engineering that prioritizes user safety, comfort, and versatility. It is a dependable choice for anyone looking to produce high-quality welds while enjoying the benefits of advanced welding technology.
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