Hobart Welding Products OM-227 978B Installation, Installing Welding Gun, Installing Work Clamp

Page 15

SECTION 5 − INSTALLATION

5-1. Installing Welding Gun

6

Spool Gun

5

MIG Gun

1	3	4	2

.Be sure that gun end is tight against drive assembly.

3

3

1Drive Assembly

2MIG Gun

3Gun Securing Thumbscrew

4Gun End

Loosen thumbscrew. Insert end through opening until it bottoms against drive assembly. Tighten thumbscrew.

Welding gun must be inserted completely to prevent leakage of shielding gas.

5 Gun Trigger Plug

Insert plug into receptacle, and tighten threaded collar.

6Spool Gun/MIG Gun Switch Place switch in MIG Gun position. Close door.

	Exposed O-rings
Incorrect	will cause shielding	Correct
Incorrect	gas leakage.	Correct
Gun Not Seated		Gun Fully Seated

804 686-A

5-2. Installing Work Clamp

.Connection hardware must be tightened with proper tools. Do not just hand tighten hardware. A loose electrical connection will cause poor weld performance and excessive heating of the work clamp.

3

1

6

2

Tools Needed:	5	4
	7/16 in

1Nut

2Work Cable From Unit

3Work Clamp

4Screw

5Work Clamp Tabs

Bend tabs around work cable.

6 Insulating Sleeves

Slide one insulating sleeve over work cable before connecting to clamp.

Slide insulating sleeves over handles.

7/16 in

802 456-A

OM-227 978 Page 11

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Contents 2007−04 OM-227 978BProcesses DescriptionFrom Hobart to You Table of Contents − Parts List − MIG Welding Gmaw GuidelinesTypical MIG Process Connections 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 Principal Safety Standards EMF InformationAbout Pacemakers UNE Décharge Électrique peut entraîner la mort LES Fumées ET LES GAZ peuvent être dangereuxIndique un message de sécurité particulier 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 SpecificationsOutput Duty Cycle And OverheatingVolt-Ampere Curves Amperes− Installation Installing Welding GunInstalling Work Clamp Changing Polarity Process/Polarity TableInstalling Gas Supply Selecting a Location And Connecting Input Power Electrical Service Guide Installing Wire Spool And Adjusting Hub TensionTools Needed Installing Contact Tip And Nozzle Appropriate setting Connecting Optional Spool GunThreading Welding Wire Controls − OperationWeld Parameter Chart For 230 VAC Model 227 949-B Months − Maintenance &TROUBLESHOOTINGRoutine Maintenance Overload Protection Drive Motor Protection030/.035 Groove Stamped 023/.025 Groove Stamped .030/.035 Changing Drive Roll Or Wire Inlet GuideTurn Off power before replacing contact tip Replacing Gun Contact TipCleaning Or Replacing Gun Liner Disconnect gun from unitTo Reassemble Gun Replacing Switch And/Or Head Tube Trouble Remedy Troubleshooting TableOM-227 978 Circuit Diagram − Electrical Diagram227 951-B Typical MIG Process Connections − MIG Welding Gmaw GuidelinesAmperage 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 DragPoor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Possible Causes Corrective Actions Troubleshooting − Excessive SpatterTroubleshooting − Porosity Troubleshooting − Excessive PenetrationTroubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Burn-Through Weld bead Troubleshooting − Waviness Of BeadTroubleshooting − Distortion Common MIG Shielding GasesTroubleshooting Guide For Semiautomatic Welding Equipment OM-227 978 Main Assembly − Parts ListDia Part Dia Part Mkgs Description Quantity 231 H-14 GunOptional Drive Rolls OptionsConsumables Page Work like a Pro Service SupportAssistance Hobart Welding Products Contact your Distributor for