Lincoln IM985 manual Wire WELDING-CV, ARC Gouging, TAbLE b.4, 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 KUBOTA according to the instructions in INSTALLATION INSTRUC- TIONS Section.

The AIR VANTAGE® 500 KUBOTA in the CV-WIRE mode, permits it to be used with a broad range of flux cored wire (Innershield and Outershield) electrodes and solid wires for MIG welding (gas metal arc welding). Welding can be finely tuned using the ARC CONTROL. Turning the ARC CON- TROL 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 dial set at 0.

NOTE: In the CV-Mode with VRD “On”, the OCV(Open Circuit Voltage) is not reduced. For indicator light operation, see table B.1.

ARC GOUGING

The AIR VANTAGE® 500 KUBOTA can be used for arc gouging.

For optimal performance, set the MODE switch to ARC GOUGING. Set the OUTPUT CONTROL knob to adjust out- put current to the desired level for the gouging electrode being used according to the ratings in the following Table B.4

The ARC CONTROL is not active in the ARC GOUGING Mode. The ARC CONTROL is automatically set to maximum when the ARC GOUGING mode is selected which provides the best ARC GOUGING performance.

NOTE: With the VRD switch in the “ON” position there is no output in the Arc Gouging Mode. For indicator light opera- tion, see table B.1.

TAbLE b.4

 

Carbon Diameter

Current Range (DC, electrode

 

 

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

 

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 KUBOTA 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 KUbOTA

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Contents 11470 Safety Depends on YouCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding and Cutting Sparks can Cause fire or explosionPrécautions DE Sûreté IvSAFETYOn-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTAbLE of Contents Section F ViiSection D Section ETechnical Specifications AIR Vantage 500 KUbOTA K2325 InstallationSafety Precautions Towing High Temperature OperationLifting High Altitude OperationFuel CAP PRE-OPERATION Engine and COM- Pressor ServiceOIL FuelWelding Terminals AIR Cleaner Inlet HoodMuffler Outlet Pipe Spark ArrestorAuxiliary Power Receptacles Remote ControlSTANDbY Power Connections Connection of AIR Vantage 500 KUbOTA 500 to Premises Wiring Connection of Lincoln ELEC- Tric Wire Feeders Across The-Arc ModelControl Cable Model Connection of the LN-25 to the AIR Vantage 500 KUbOTA TA see Section FShut off welder before making any electrical con- nections General Description OperationWelder Recommended ApplicationsAIR Compressor GeneratorWeld Mode Selector Switch Welding Controls Figure b.1Digital Output METERS-The digital TAbLE b.1 Wire Feeder Voltmeter SwitchGlow Plug Push bUTTON Engine ControlsBATTERY Jump Start Terminal AIR Compressor Controls 24 ThruStarting the Engine TAbLE b.2 Welder OperationStopping the Engine Constant Current CC-STICK WeldingDownhill Pipe Welding TIG WeldingFor Re-Striking Electrodes Table b.3 Typical Current Ranges Wire WELDING-CVARC Gouging TAbLE b.4Paralleling Auxiliary Power OperationSimultaneous Welding and AUXIL- Iary Power Loads BOTH 1 and 3 PhaseWelders AIR Vantage AccessoriesField Installed Options Accessories are available atCompressor Maintenance MaintenanceSingle- and Two-StageEngine Air Cleaners Service InstructionsAIR Cleaner Engine OIL ChangeOIL Filter Change Fuel Filter Cooling SystemTightening the FAN bELT BLEEDING the Fuel SystemChecking the Electrolyte Level Engine AdjustmentBATTERY Maintenance Servicing Muffler with INTER- NAL Spark ArrestorWelder / Generator Maintenance Gfci Module Testing and Resetting ProcedureTAbLE D.1 Engine Maintenance Components HOW to USE TROUbLESHOOTING Guide TROUbLESHOOTINGCause Recommended Course of Action PRObLEMSSymptoms POSSIbLEWelding without a control cable High idle does not work Faulty control cable. Repair or Your local Lincoln Authorized Field Service FacilityTo Work Electrode Cable To Wire Feed Unit Engine Welders / K867 / K775 / LN-7 Connection DiagramEngine Welders / K867 / LN-8 Connection Diagram DiagramsKUbOTA Diagrams Diagrams Diagrams Diagrams Diagrams Diagrams Diagrams Diagrams Diagrams Enhanced Diagram Wiring DiagramBottom View of Welder Base Dimension PrintAIR Vantage 500 KUbOTA Precaucion Warnung
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