Hobart Welding Products 250 installation instructions Threading Welding Wire, Wood

Page 22

3-14. Threading Welding Wire

1 Wire Spool

2 Welding Wire

3 Inlet Wire Guide

4 Pressure Adjustment Knob

5 Drive Roll

46 Outlet Wire Guide

7 Gun Conduit Cable Lay gun cable out straight.

7

Tools Needed:

1

2

3

5

6

Ref. 802 285-D

 

Open pressure assembly.

Tighten

1

2

3

4

.Hold wire tightly to keep it from unraveling.

6 in (150 mm)

Pull and hold wire; cut off end.

.Use pressure indicator

scale to set a desired drive roll pressure.

Pressure

Indicator

Scale

4 in (102 mm)

Push wire thru guides into gun;

continue to hold wire.

Close and tighten pressure assembly, and let go of wire.

Press gun trigger until wire comes out of gun. Reinstall contact tip and nozzle

OM-192 440 Page 18

Remove gun nozzle and contact tip.

Turn On.

Tighten

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WOOD

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Feed wire to check drive roll pressure.

 

 

 

 

 

 

Cut off wire.

Tighten knob enough to prevent slipping.

 

 

 

 

 

 

Close door.

Image 22
Contents Description OM-192 440WProcesses File MIG GmawFrom Hobart to You Table of Contents Warranty Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or killCalifornia Proposition 65 Warnings EMF Information Principal Safety StandardsAbout Pacemakers LES Fumées ET LES GAZ peuvent être dangereux UNE Décharge Électrique peut entraîner la mortIndique un message de sécurité particulier DES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer unIncendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures graves’EMPLOI Excessif peut SUR Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaquesExceeding duty cycle can damage unit and void warranty SpecificationsWelding Power Source Duty Cycle And Overheating OverheatingVolt-Ampere Curves Welding Gun Duty Cycle And OverheatingDefinition Installing Welding Gun Connecting To Weld Output Terminals Installing Work ClampSetting Gun Polarity For Wire Type Installing Wire Spool And Adjusting Hub TensionInstalling Gas Supply Rear PanelPositioning Jumper Links VoltsInput Voltage Electrical Service GuideHz Single Min Grounding Conductor Size In AWGSelecting a Location And Connecting Input Power Threading Welding Wire WoodTurn Off unit, and disconnect input power OperationConnecting Spool Gun To Welding Power Source Turn Off unit− Operation ControlsWeld Parameters Voltage switch positionWhile welding Example 2/40 = To read settingsNumber on left of slash Supplementary Protectors Routine MaintenanceDisconnect power before maintaining MonthsTurn Off power Replacing Drive Roll And Wire Inlet GuideRemoving Knob From Front Panel Turn Off power before replacing contact tip Replacing Gun Contact TipTurn off welding power source/wire feeder Wire size stamped on tip − check and match wire sizeReplacing Switch And/Or Head Tube Wire Drive/Gun Trouble Remedy Welding Troubleshooting TableWire Drive/Gun Troubleshooting Table Welding Trouble Remedy− MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsThickness to Amperage a Typical MIG Process Control SettingsWire Size Amperage Range AmperageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Good Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Excessive Penetration Troubleshooting − Excessive SpatterTroubleshooting − Porosity Possible Causes Corrective ActionsTroubleshooting − Incomplete Fusion Troubleshooting − Lack Of PenetrationTroubleshooting − Burn-Through Troubleshooting − Waviness Of Bead Troubleshooting − DistortionCommon MIG Shielding Gases Troubleshooting Guide For Semiautomatic Welding EquipmentWire does not feed ApplicationWelding arc not stable Wire slipping in drive rolls OM-192 440 − Electrical Diagram − Parts List REGULATOR/FLOWMETER, 10−50 CFH ARGON/CO2 Center Baffle w/Components Center Baffle w/Components -1Item Rear Panel w/Components Front Panel w/Components M-25 Gun Optional Spool Gun Switch Description RemarksPage Support ServiceAssistance Contact your Distributor for Hobart Welding Products