Lincoln Electric IM759 Changing Machine Over to Feed Other Wire Sizes, Welding with Gmaw MIG

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B-6

OPERATION

B-6

 

 

 

The WELD-PAK 3200HD is suitable for .035" alu- minum wire and .030" stainless wire. Refer to Table B.1 for recommended procedure settings (requires K499 Argon Regulator Kit).

TABLE B.1

 

 

Shielding

Voltage/Wire Speed

Process

Welding Wire

Gas

16 ga

14 ga

12 ga

10 ga

 

 

 

 

 

 

 

MIG DC+

.035 Dia

100% Argon

B-5

D-7

D-9

D-9

 

4043 Aluminum

 

 

 

 

 

 

Wire

 

 

 

 

 

MIG DC+

.035 Dia

100% Argon

B-5

C-7

D-9

D-10

 

5356 Aluminum

 

 

 

 

 

 

Wire

 

 

 

 

 

 

 

 

 

 

 

 

MIG DC+

.030 Dia

98% Argon/

A-3

C-6

D-7.5

D-7.5

 

308L Stainless

2% Oxygen

 

 

 

 

 

Steel Wire

 

 

 

 

 

2.If using a regulator with an adjustable flow meter, close the gun trigger and adjust the flow to give 15

–20 cubic ft per hour (CFH) (7 – 10 I/min) [use 20

–25 CFH (10 – 12 I/min) when welding out of

position or in a drafty location for CO2]. For argon mixed gas, trigger to release gas pressure, and adjust the flow to give 25 – 30 CFH (12 – 14 I/min).

3.Keep the cylinder valve closed, except when using the WELD-PAK 3200HD. When finished welding:

a) Close the cylinder valve to stop gas flow.

b) Depress the gun trigger briefly to release the pressure in the gas hose.

c) Turn off the WELD-PAK 3200HD.

CHANGING MACHINE OVER TO FEED OTHER WIRE SIZES

The WELD-PAK 3200HD is shipped from the factory ready to feed 023”-.025” (0.6 mm) diameter wire. To operate the WELD-PAK 3200HD with other sizes of wire, it is necessary to change the contact tip and change the drive roll over to other sizes. Refer to Changing the Contact Tip and Changing the Drive Roll, in the MAINTENANCE section, for specific infor- mation on these procedures.

WELDING WITH GMAW (MIG)

Shielding Gas

When using the GMAW process, obtain and install a gas regulator and hose kit; K463 (for CO2) or K499 (Argon mixed) gas regulator and hose kit.

1.For CO2, open the cylinder very slowly. For argon- mixed gas, open cylinder valve slowly a fraction of a turn. When the cylinder pressure gauge pointer stops moving, open the valve fully.

WELDING WITH FCAW (Innershield)

When using the FCAW process, the correct drive roll and electrode polarity must be used. See Work Cable Installation in INSTALLATION section for changing the polarity.

OVERLOAD PROTECTION

Output Overload

The WELD-PAK 3200HD is equipped with a circuit breaker and a thermostat which protects the machine from damage if maximum output is exceeded. The cir- cuit breaker button will extend out when tripped. The circuit breaker must be manually reset.

Thermal Protection

The WELD-PAK 3200HD has a rated output duty cycle of 20%. If the duty cycle is exceeded, a thermal protector will shut off the output until the machine cools to a reasonable operating temperature. This is an automatic function of the WELD-PAK 3200HD and does not require user intervention. The fan continues to run during cooling.

Electronic Wire Drive Motor Protection

The WELD-PAK 3200HD has built-in protection for wire drive motor overload.

WELD-PAK 3200HD

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Contents WELD-PAK 3200HD Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Please Examine Carton and Equipment For Damage ImmediatelyMaster Table of Contents for ALL Sections Installation Technical Specifications WELD-PAK 3200HDElectric Shock can kill Safety PrecautionsIdentify and Locate Components Work Clamp Installation Select Suitable LocationOutput Connections StackingGUN Installation Work Cable InstallationConnecting Gun Cable to the WELD-PAK GAS ConnectionFigure A.5 Requirements For Rated Output Input ConnectionsCode Requirements for Input Connections Undercarriage Assembly Figure A.7 WELD-PAK 3200HDDesign Features OperationGeneral Description Recommended ProcessesLimitations Controls and SettingsWelding Capability Sequence of Operation Wire LoadingWelding Operations Friction Brake Adjustment Wire ThreadingMaking a Weld Cleaning Tip And NozzleProcess Guidelines Overload Protection Changing Machine Over to Feed Other Wire SizesWelding with Gmaw MIG Learning to Weld Learning to WeldARC-WELDING Circuit SELF-SHIELDED Fcaw Welding ARCGmaw MIG Welding ARC Process SelectionCommon Metals Joint Types and PositionsFor Gmaw MIG Process For Fcaw Innershield ProcessFillet Welds Welding In The Vertical PositionPenetration Machine SET UP for the SELF-SHIELDED Fcaw Process Welding Techniques for the SELF- Shielded Fcaw ProcessVertical-down Welding Correct Welding PositionCorrect Electrical Stickout ESO Correct Welding SpeedHelpful Hints PracticeMachine SET UP for the Gmaw MIG Process Welding Techniques for the Gmaw MIG ProcessFor the WELD-PAK 3200HD, use the following Troubleshooting Welds To Eliminate a Ropy Convex Bead in order of importanceTo Correct Poor Penetration in order of impor- tance To Eliminate Stubbing* in order of importanceProper Gun Handling Application Chart K586-1 Deluxe Adjustable Gas Regulator Hose Kit AccessoriesOptional Accessories Replacement Parts Routine Maintenance MaintenanceMaintenance Safety Precautions GUN and Cable Maintenance Configuration of Components in Wire Feeding SystemFor Magnum 100L GUN Contact Tip Cable Liner Drive RollChanging Drive Roll Component Replacement ProceduresChanging the Contact TIP Liner trim length Changing LinerGUN Handle Parts Troubleshooting HOW to USE Troubleshooting GuideProblems Possible Areas Symptoms Misadjustments Recommended Course of ActionContact your local Lincoln Authorized Field Service FacilityWelding Problems Diagrams WELD-PAK 3200HD Wiring DiagramWELD-PAK 3200HD How To Read Shop Drawings New Lessons in Arc WeldingNeed Welding Training? $700.00Precaucion Warnung
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