Hobart Welding Products CHAMP 2060 Troubleshooting Burn-Through, Troubleshooting Waviness Of Bead

Page 53

11-19. Troubleshooting – Burn-Through

Burn-Through – weld metal melting completely through base metal resulting in holes where no metal remains.

Possible Causes

Corrective Actions

 

 

Excessive heat input.

Select lower amperage. Use smaller electrode.

 

 

 

Increase and/or maintain steady travel speed.

 

 

11-20. Troubleshooting – Waviness Of Bead

Waviness Of Bead – weld metal that is not parallel and does not cover joint formed by base metal.

Possible Causes

Corrective Actions

 

 

Unsteady hand.

Use two hands. Practice technique.

 

 

11-21. Troubleshooting – Distortion

 

 

 

Distortion – contraction of weld met-

 

 

 

al during welding that forces base

 

 

 

metal to move.

 

 

Base metal moves

 

 

 

 

in the direction of

 

 

 

 

the weld bead.

 

 

 

Possible Causes

 

Corrective Actions

 

 

 

Excessive heat input.

 

Use restraint (clamp) to hold base metal in position.

 

 

 

 

 

 

 

Make tack welds along joint before starting welding operation.

 

 

 

 

 

 

 

Select lower amperage for electrode.

 

 

 

 

 

 

 

Increase travel speed.

 

 

 

 

 

 

 

Weld in small segments and allow cooling between welds.

 

 

 

 

OM-499 Page 49

Image 53
Contents Description OM-499Processes From Hobart to You Table of Contents Page Arc Welding Hazards Marks a special safety messageElectric Shock can kill Fumes and Gases can be hazardousEngine Hazards Compressed Air Hazards EMF Information Principal Safety StandardsConsignes DE Sécurité Lire Avant Utilisation Signification des symbolesUN Choc Électrique peut tuer LES Fumées ET LES GAZ peuvent être dangereuxDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un in- cendie ou une explosionDES Pièces Chaudes peuvent Provoquer des brûlures gravesDES Organes Mobiles peuvent provoquer des blessures ’EXPLOSION DE LA Batterie peutLA Chaleur DU Moteur peut pro- voquer un incendie ’AIR Comprimé peut provoque r des blessuresInformation sur les champs électromagnétiques Principales normes de sécuritéSymbol Definitions SpecificationsWeld, Power, And Engine Specifications Welding Weld Output Rated Maximum Generator PowerFuel Consumption Kohler-Powered Units Dimensions, Weights, And Operating AnglesDo not move or operate unit where it Be damaged or unit could tipExceeding duty cycle can damage unit and void warranty Fuel Consumption Honda-Powered UnitsDuty Cycle Continuous WeldingHz Model Generator Power CurvesMAX MID MIN Volt-Ampere CurvesGrounding Generator To Truck Or Trailer Frame InstallationInstalling Welding Generator Engine Prestart Checks Kohler-Powered Units Grounding Generator When Supplying Building SystemsFuel OilConnect negative cable last Engine Prestart Checks Honda-Powered UnitsConnecting The Battery Electric-Start Models Only Selecting Weld Cable Sizes Connecting To Weld Output Terminals45 m 60 m 70 m 90 m 105 m 120 m Stop engine before50 Hz 60 Hz Controls Kohler-Powered UnitsOperating the Welding Generator 60 Hz 50 Hz Controls Honda-Powered Units See SectionRecoil-Start 2Electric-Start Description Of Controls Honda-Powered Units See Section 120 V x 10 a + 240 V x 9 a = 3.5 kVA/ KW OM-499 Generator Power Panel 495 218 USAOperating Auxiliary Equipment Generator Power Panel 495 Optional Generator Power PanelsCanada-CSA South Africa South America Australia Europe AsiaIt exceeds 5500W Generator Power Panel RatingsMaintenance Label Maintenance20 h Routine Maintenance50 h 100 hAdjusting Engine Speed Kohler-Powered Units Overload Protection Honda-Powered UnitsWeld/Power Speed Adjustment Idle Speed AdjustmentThrottle Control Lever Adjustment Screw Adjusting Engine Speed Honda-Powered UnitsPilot Screw Throttle Stop Screw Stop engine. Close fuel valveTroubleshooting TroubleshootingGenerator Power WeldingViscosity oil for operating temperature Check battery voltage electric-start models onlyEngine Circuit board PC1Circuit Diagram For Welding Generator 1 Electrical DiagramsCircuit Diagram For Welding Generator 2 Wiring Diagram For Welding Generator Wiring Diagram For Auxiliary Power Panels 1 Wiring Diagram For Auxiliary Power Panels 2 Selecting Equipment Generator Power GuidelinesHow Much Power Does Equipment Require? Grounding When Supplying Building SystemsEarth ground if supplying Volts 115 Amps Resistive LoadApproximate Power Requirements For Farm/Home Equipment Approximate Power Requirements For Industrial MotorsIndustrial Motors Rating Starting Watts Running Watts Farm/Home Equipment Rating Starting Watts Running WattsContractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor EquipmentHow Much Power Can Generator Supply? Power Required To Start MotorSingle-Phase Induction Motor Starting Requirements KVA/HP x HP xWork like a Pro Typical Connections To Supply Standby PowerCurrent Load Watts Amperes Selecting Extension Cord Use Shortest Cord PossibleStick Welding Smaw Guidelines Stick Welding ProcedureWeld current starts when electrode touches work- piece Striking an Arc Tapping Technique Electrode and Amperage Selection ChartStriking an Arc Scratch Start Technique Good Weld Bead Characteristics Poor Weld Bead CharacteristicsPositioning Electrode Holder 10-30 9090 End View of Work AngleElectrode Movement During Welding Conditions That Affect Weld Bead ShapeLap Joint Butt JointsTee Joint 16 in 1.6 mm Tack WeldsTroubleshooting Excessive Spatter Troubleshooting PorosityWeld Test Possible Causes Corrective ActionsTroubleshooting Excessive Penetration Troubleshooting Incomplete FusionTroubleshooting Lack Of Penetration Troubleshooting Distortion Troubleshooting Burn-ThroughTroubleshooting Waviness Of Bead Main Assembly Parts ListDia Part Dia Part Mkgs Description Quantity Generator Power Panels Item Dia Part Mkgs Description Quantity Support ServiceHobart Welding Products Contact your Distributor for