Lincoln Electric 5000 manual Selecting Electrodes, Out-of-Position Group AWS E6011

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B-19

OPERATION

B-19

 

 

 

up strip may be used and plates may be gapped 1/8” (3.2mm) or more, as shown in figure (b).

 

(b)

Scrap steel back-up strip

(a)

(c)

Three ways to prepare plates where complete penetration is necessary.

On sections where only a sealed joint is required and strength is not important, the joint may be welded after slightly veeing out the seam as shown in figure (d) below.

(d)(e)

Single and double beads, with and without beveling for tight, partial strength joints.

Selecting Electrodes

Which electrode is best for the particular job . . . how do you use it? These are important questions because the cost, quality, and appearance of your work depends on proper electrode selection and appli- cation. MILD STEEL ELECTRODES may be classi- fied into the following groups:

Out-of-Position Group (AWS E6011)

This group includes electrodes which have a snappy, deep penetrating arc and fast freezing deposits.

These electrodes are used for general purpose, all- position fabrication and repair welding. They are also the best choice for pipe welding and sheet metal butt, corner, and edge welds. They can be used for repair work when dirt, grease, plating or paint cannot be completely cleaned from the steel. These electrodes are typically used with motions “A” and “B” (see draw- ing) for the first pass on vertical-up welds.

High-Speed Group (AWS E6013)

This group includes electrodes which have a moder- ately forceful arc and deposit rates between those of the out-of-position and high-deposit electrodes.

They are primarily general purpose production elec- trodes especially for downhill fillets and laps or short and irregular welds that change direction or position. They are also widely used in maintenance and recom- mended for sheet metal fillet and lap welds. Motion “D” (see drawing) is generally used for vertical-up welding, but motions “A” and “B” are also suitable.

Low Hydrogen Group (Stable-Arc E7018)

These electrodes are generally called “low hydrogen”. The name comes from the fact that their coating contains little hydrogen in either moisture or chemical form. Low hydrogen electrodes offer these benefits: outstanding crack resistance, lowest porosity on sulphur bearing steels, and X-ray quality deposit capa- bility. Thus, they are the first choice when welding “problem” steels. E7018 can be used in all positions, with Motion “C” (below) recommended for the first pass on vertical-up welds. NEVER use a whipping technique or a long arc with these electrodes. ALWAYS fill craters by drawing electrode away slowly. ALWAYS keep these electrodes dry. Electrodes, when not used within a few hours after a container is opened, must be stored in heated cabinets.

 

 

 

Motions

 

E

 

 

 

 

D

 

 

START

F

C

 

 

 

 

 

 

 

 

 

B

 

 

 

G

 

 

 

 

A

SIDE

 

VIEW

 

 

 

 

 

 

 

 

POWER ARC 5000

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Page 34 Page 36
Contents Safety Depends on You Power ARCCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéPlease Examine Carton and Equipment For Damage Immediately Thank YouTable of Contents Technical Specifications Power ARC InstallationStoring Safety PrecautionsLocation and Ventilation Lifting StackingTilting Assembly of Wheels and Handle to the Tube Frame Spark Arrester PRE-OPERATION Engine ServiceOIL FuelWelding Cable Connections Electrical Output ConnectionsMachine Grounding Auxiliary Power ReceptaclesCable Installation Circuit Breakers Power Cord Connections to TWIST- Lock PlugsPremises Wiring Plugs and HAND-HELD EquipmentThese Devices Without General Description Safety InstructionsOperation Operating InstructionsLimitations Recommended ApplicationsWelding Capability GENERATOR/WELDER Controls Controls and SettingsGasoline Engine Controls Figure B.2 Gasoline Engine ControlsStarting the Engine Engine OperationBefore Starting the Engine For Best Engine Starting Stopping the EngineBREAK-IN Period For a HOT EngineGeneral Information To USE the Generator AS AN Auxiliary Power SupplyGenerator Operation Suggested Power Applications Running Watts Start-up Watts Table B.3 Generator Power ApplicationsAfter YOU Finish the Weld To USE the Power ARC 5000 for Stick WeldingWelding Operation Control Function / Operation Current Control DialWelding Guidelines Stick Welding Figure B.4 The welding arc What Happens in the Arc?Correct Welding Speed Correct Welding Position Correct Arc LengthCorrect Way to Strike An Arc Types of Welds PracticeCommon Metals Welding in the Vertical Position PenetrationFillet Welds Multiple Pass WeldsVertical-Down Welding Vertical-Up WeldingHardfacing To Reduce Wear How to Hardface the Sharp Edge Metal to Ground WearOverhead Welding Welding Sheet MetalCast Iron Plate Preparation Welding Cast IronLow Hydrogen Group Stable-Arc E7018 Selecting ElectrodesOut-of-Position Group AWS E6011 High-Speed Group AWS E6013Briggs and Stratton Accessories AccessoriesOPTIONS/ACCESSORIES Lincoln Electric AccessoriesEngine Adjustments MaintenanceRoutine and Periodic Maintenance Engine MaintenanceClean AIR Filter PRE-CLEANER Figure D.3 Clean Cooling SystemPart Part Number Table D.2 Engine Maintenance PartsFigure D.6. Brush Removal and Replacement GENERATOR/WELDER MaintenanceFigure D.7. Major Component Locations Possible Areas TroubleshootingSymptoms Generator POWER, Always Not RUN Engine Without AN Wiring Diagram Power ARC DiagramsDimension Print Basic Course How To Read Shop DrawingsNew Lessons in Arc Welding Need Welding Training?Precaucion Warnung
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