Hobart Welding Products H-10 GUN, 180 Cleaning Or Replacing Gun Liner, Disconnect gun from unit

Page 30

7-6. Cleaning Or Replacing Gun Liner

Tools Needed:

Y Disconnect gun from unit.

Head Tube

8 mm

8 mm / 10mm

Remove nozzle, contact tip, adapter, gas diffuser, and wire outlet guide.

10 mm

Remove liner.

Lay gun cable out straight before installing new liner.

To Reassemble Gun:

Insert new liner.

Install wire outlet guide so that 1/8 in (3 mm) of liner sticks out. Hand tighten outlet guide, and then tighten two full turns more.

Blow out gun casing.	Cut liner off so that 3/4 in (19 mm)
	Cut liner off so that 3/4 in (19 mm)
	sticks out of head tube.

Install gas diffuser, adapter, contact tip, and nozzle.

Ref. 802 446-A

OM-925 Page 26

Image 30

Contents Processes DescriptionFrom Hobart to You Table of Contents − Parts List 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 Principal Safety Standards EMF InformationAbout Pacemakers LES Décharges Électriques peuvent être mortelles Signification des symboles− Consignes DE Sécurité − À Lire Avant Utilisation LES Fumées ET LES GAZ peuvent être dangereuxLES Pièces Chaudes peuvent cau- ser des brûlures graves LE Soudage peut causer un incen- die ou une explosionLES Particules Projetées peu- vent blesser les yeux LE Bruit peut affecter l’ouïe’EMPLOI Excessif peut Faire Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser LES Pièces Mobiles peuvent cau- ser des blessuresPrincipales normes de sécurité Information sur les champs électromagnétiquesConsignes relatives aux stimulateurs cardiaques Specifications − SpecificationsSymbols And Definitions − DefinitionsOutput Duty Cycle % Duty Cycle And OverheatingAmperes VAC Model Output AmperesVolt-Ampere Curves VoltageAmperage − Installation Installing Welding GunInstalling Work Clamp Process/Polarity Table Changing PolarityInstalling Gas Supply Special installation may be SectionDo not move or operate unit where it could tip Electrical Service Guide For 230 VAC Model Installing Wire Spool And Adjusting Hub TensionThreading Welding Wire Hold wire tightly to keep it From unraveling− Operation ControlsWeld Parameter Chart For 115 VAC Model 217 618-A Weld Parameter Chart For 230 VAC Model 217 754-B Overload Protection − Maintenance &TROUBLESHOOTINGRoutine Maintenance Drive Motor ProtectionChanging Drive Roll Or Wire Inlet Guide Turn Off power before replacing contact tipReplacing Gun Contact Tip Cleaning Or Replacing Gun Liner Disconnect gun from unitTo Reassemble Gun Replacing Switch And/Or Head Tube Troubleshooting Table Trouble RemedyDoes not run − Electrical Diagram Circuit Diagram For 115 VAC ModelCircuit Diagram For 230 VAC Model − MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsThickness to Amperage a Typical MIG Process Control SettingsWire Size Amperage Range Select VoltageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Poor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Excessive Penetration Troubleshooting − Excessive SpatterTroubleshooting − Porosity Possible Causes Corrective ActionsTroubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − 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-925 − Parts List Main AssemblyDia Part Description Quantity Dia Part Description Quantity Mkgs H-10 Gun 195Optional Drive Rolls OptionsService SupportContact your Distributor for Hobart Welding Products