Hobart Welding Products 140 manual Tighten, Pressure Indicator Scale

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.A complete Parts List is available at www.HobartWelders.com

4

Tighten

1

2

3

4

.Use pressure indicator scale to set

a desired drive roll pressure. (Start

5

with a setting of 2 or 3 on the scale.)

 

Pressure

Indicator

Scale

Be sure that wire is positioned in proper feed roll groove. Close and tighten pressure assembly, and let go of wire.

Remove gun nozzle and contact tip.

6

7

Turn power on. Be sure that Voltage range switch is set to range 1, 2, 3, or 4 to feed wire. Rotate knob until it “clicks” into detent. Wire will not feed if range switch is set between ranges.

8

Be sure that tip matches wire diameter. Reinstall contact tip and nozzle.

Press gun trigger until wire comes out of gun. (Keep gun cable as straight as possible.)

9

Tighten

1

2

3

4

WOOD

Feed wire to check drive roll pressure.

Tighten knob enough to prevent slipping.

Cut off wire. Close door.

Ref. 803 714-A

OM-925 Page 19

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Contents Description OM-925Processes From Hobart to You Table of Contents Typical MIG Process Connections − ACCESSORIES/CONSUMABLES− MIG Welding Gmaw Guidelines Electric Shock can kill Symbol UsageMarks a special safety message Arc Welding HazardsBuildup of GAS can injure or kill ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal can injure eyesCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux LE Bruit peut endommager l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesDES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peut SUREn ce qui concerne les stimulateurs cardiaques Boulevard, Rexdale, Ontario, Canada M9W 1R3 téléphone− Definitions − SpecificationsSymbols And Definitions SpecificationsExceeding duty cycle can WarrantyDuty Cycle And Overheating Output Duty Cycle %10.0 100 110 120 130 140 150 160 Volt-Ampere CurvesVoltage 15.0Drive assembly. Tighten thumbscrew − InstallationInstalling Welding Gun Installing Work ClampChanging Polarity Process/Polarity TableCO2 gas regulator/flowmeter Installing Gas SupplyDo not move or operate unit Where it could tip Selecting a Location And Connecting Input PowerAlign locking hole in spool with locking pin on spool hub Installing Wire Spool And Adjusting Hub TensionUse with solid or flux cored wire Installing Contact Tip And NozzleTurn off welding power source Lay gun cable out straight Threading Welding WireTighten Pressure Indicator ScaleControls Source or -2. Do not switch under load− Operation Material Thickness Reference Chart Weld Parameter Chart 217 618-A Overload Protection Drive Motor Protection − Maintenance & TroubleshootingRoutine Maintenance Disconnect powerTools Needed 030/.035 Groove Changing Drive Roll Or Wire Inlet GuideTurn Off power before replacing contact tip Replacing Gun Contact TipTo Reassemble Gun Cleaning Or Replacing Gun LinerDisconnect gun from unit Slide handle Replacing Switch And/Or Head TubeRemove handle locking nut Secure head tube in vice Trouble Remedy Troubleshooting TableCircuit Diagram − Electrical DiagramTypical MIG Process Connections − MIG Welding Gmaw GuidelinesSelect Voltage Typical MIG Process Control SettingsWire Size Amperage Range Thickness to Amperage aHolding And Positioning Welding Gun Short Normal Long Conditions That Affect Weld Bead ShapePush Perpendicular DragGun Movement During Welding Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Possible Causes Corrective Actions Troubleshooting − Excessive SpatterTroubleshooting − Porosity Troubleshooting − Excessive PenetrationTroubleshooting − Burn-Through Troubleshooting − Lack Of PenetrationTroubleshooting − Incomplete Fusion Weld bead Troubleshooting − Waviness Of BeadTroubleshooting − Distortion Application Troubleshooting Guide For Semiautomatic Welding EquipmentCommon MIG Shielding Gases Drive rolls if necessary Welding arc not stable Wire slipping in drive rollsReadjust welding parameters Welding power sourceConsumables − ACCESSORIES/CONSUMABLESAccessories Replacement Drive RollsWork like a Pro Start Your Professional Assistance ServiceSupport Hobart Welding Products Contact your Distributor for