Lincoln Electric IM10066 manual Wire WELDING-CV, ARC Gouging, Table b.3 Typical Current Ranges

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b-9

OPERATION

b-9

WIRE WELDING-CV

Connect a wire feeder to the AIR VANTAGE® 500 (AU) (AU)according to the instructions in INSTALLA- TION INSTRUCTIONS Section.

The AIR VANTAGE® 500 (AU) in the ”CV-WIRE” position, permits it to be used with a broad range of flux cored wire (Innershield and Outershield) elec- trodes and solid wires for MIG welding (gas metal arc welding). Welding can be finely tuned using the “ARC CONTROL”. Turning the ARC CONTROL clockwise from -10(soft) to +10(crisp) changes the arc from soft and washed-in to crisp and narrow. It acts as an inductance/pinch control.

The proper setting depends on the procedure and operator preference. Start with the knob set at 0.

For any electrodes, including the above recommenda- tions, the procedures should be kept within the rating of the machine. For additional electrode information, See www.lincolnelectric.com or the appropriate Lincoln publication.

ARC GOUGING

For optimal performance when arc gouging, set the AIR VANTAGE® 500 (AU) “WELD MODE” switch to the “CC - STICK” position, and the “ARC CONTROL” to 10.

Set the “OUTPUT” knob to adjust output current to the desired level for the gouging electrode being used according to the ratings in the following Table B.2

TAbLE b.2

 

 

Carbon Diameter

Current Range (DC, elec-

 

 

 

trode positive)

 

 

1/8"(3.2mm)

30-60 Amps

 

 

5/32"(4.0mm)

90-150 Amps

 

 

3/16"9(4.8mm)

200-250

Amps

 

 

1/4"(6.4mm)

300-400

Amps

 

 

5/16"(8.0mm)

350-450

Amps

 

 

3/8"(10.0mm)

450-575

Amps*

 

 

 

 

 

NOTE: If desired the CV mode can be used for Arc Gouging.

*Maximum current setting is limited to the AIR VANTAGE® 500 (AU) maximum of 575 Amps.

 

 

Table b.3 TYPICAL CURRENT RANGES (1)

FOR TUNGSTEN ELECTRODES (2)

 

 

 

DCEN (-)

DCEP (+)

Approximate Argon Gas Flow Rate

 

 

 

 

 

 

 

l/min (c.f.m.)

 

 

Tungsten

 

 

 

 

 

 

 

 

Electrode

 

1%, 2%

1%, 2%

 

 

 

 

TIG TORCH

Diameter

 

Thoriated

Thoriated

Aluminium

Stainless Steel

Nozzle

mm (in)

 

Tungsten

Tungsten

 

 

 

 

Size (4), (5)

 

 

 

 

 

 

 

 

 

.25

(0.010)

 

2-15

(3)

2-4

(3-8)

2-4 (3-8)

#4, #5, #6

.50

(0.020)

 

5-20

(3)

3-5

(5-10)

3-5

(5-10)

 

1.0

(0.040)

 

15-80

(3)

3-5

(5-10)

3-5

(5-10)

 

1.6

(1/16)

 

70-150

10-20

3-5

(5-10)

4-6

(9-13)

#5, #6

2.4

(3/32)

 

150-250

15-30

6-8 (13-17)

5-7 (11-15)

#6, #7, #8

3.2

(1/8)

 

250-400

25-40

7-11

(15-23)

5-7 (11-15)

 

4.0

(5/32)

 

400-500

40-55

10-12

(21-25)

6-8 (13-17)

#8, #10

4.8

(3/16)

 

500-750

55-80

11-13

(23-27)

8-10

(18-22)

 

6.4

(1/4)

 

750-1000

80-125

13-15

(28-32)

11-13 (23-27)

 

(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 applica- tions.

(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 can- not withstand high temperatures and high duty cycles.

AIR VANTAGE® 500 (AU)

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Contents 11656 Safety Depends on YouCalifornia Proposition 65 Warnings SafetyIiSAFETY Iii IiiSAFETYPrécautions DE Sûreté IvSAFETYElectromagnetic Compatibility EMC Methods of Reducing Emissions Mains Supply Vii Please Examine Carton and Equipment For Damage ImmediatelyOn-Line Product Registration TAbLE of Contents TAbLE of Contents Height Width Depth InstallationDuty Cycle Welding Output Volts at Rated Amps Open Circuit VoltageStacking Safety PrecautionsLocation and Ventilation StoringTowing High Temperature OperationLifting High Altitude OperationFuel CAP PRE-OPERATION Engine and COM- Pressor ServiceOIL Fuel USE Diesel Fuel onlyWelding Terminals AIR Cleaner Inlet HoodMuffler Outlet Pipe Spark ArrestorRemote Control Auxiliary Power ReceptaclesSTANDbY Power Connections Control Cable Model Connection of Lincoln ELEC- Tric Wire FeedersConnection of LN-15 to the AIR Vantage 500 AU Across The-Arc ModelShut off welder before making any electrical con- nections Connection of the LN-25 to the AIR Vantage 500 AUGeneral Description OperationControls and Settings Output Control Idler SwitchOIL Pressure Gauge ENGINE PROTECTIONPIN Connector WELD MODE SELECTOR SWITCHWelding Terminals Switch Wire Feeder Voltmeter SwitchAIR Compressor Controls 26 Thru What are VRD and Rocv DEVICES? Welding Power SourcesSafety VRD Operation IndicatorTable b.1 Cummins b3.3 Engine Fuel Consumption Starting TechniqueBREAK-IN Period Typical Fuel ConsumptionWelder Operation Stick Welding ModeCC-STICK Mode Touch Start TIG ModeWire WELDING-CV ARC GougingTable b.3 Typical Current Ranges Plus Auxiliary Power OperationSimultaneous Welding and AUXIL- Iary Power Loads ParallelingK2641-2 Four Wheeled STEERAbLE Yard Trailer AccessoriesOptional Field Installed Accessories TIG OptionsCompressor Maintenance MaintenanceSingle- and Two-StageEngine Air Cleaners Service InstructionsFuel Filters Cooling SystemPreventing Electrical Damage Nameplates / Warning Decals MAIN- Tenance CleaningWelder / Generator MAINTE- Nance StorageTROUbLESHOOTING Cause Recommended Course of Action PRObLEMSSymptoms POSSIbLETROUbLESHOOTING Faulty receptacle Wiring Diagram Diagrams To Work Electrode Cable To Wire Feed Unit Engine Welders / K867 / K775 / LN-7 Connection DiagramDiagrams Diagrams Engine Welders / K867 / LN-8 Connection Diagram Diagrams Diagrams Diagrams Diagrams Diagrams Diagrams Dimension Print AIR Vantage 500 AU Precaucion Warnung
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