Hobart 125 EZ, H-9B manual Cleaning Gun Liner

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6-6. Cleaning Gun Liner

	1	Head
	1	Tube
		Tube
		2
		3

8 mm

Remove nozzle. Cut off wire at contact tip, and remove contact tip and tip adapter.

+−

Open pressure assembly. Retract wire from liner onto spool.

YTurn off welding power source.

1 Nozzle

2 Contact Tip

3 Adapter

.Hold wire tightly to keep it

from unraveling. Secure end of wire at spool.

+−

Remove screws (3) from cover, and remove cover from wire drive assembly.

Tools Needed:

Lay gun cable out straight,	Reassemble drive cover	. Thread wire according to
and blow out liner.	and gun in reverse order	Section 4-7.
	from taking it apart.	Section 4-7.
8 mm	from taking it apart.
8 mm

804 241-A / Ref. 804 123-A / 804 128-A / Ref. 803 837-A

OM-923 Page 21

Image 25

Contents Processes OM-923Description File Flux Cored FcawFrom Hobart to You Table of Contents Warranty Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes 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 Incendie ou une explosion LE Soudage peut provoquer unDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLO’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresEn ce qui concerne les stimulateurs cardiaques Principales normes de sécuritéSpecifications − SpecificationsDuty Cycle And Overheating Volt-Ampere Curves Installing Work Clamp − InstallationProcess/Polarity Table PolarityInstalling 4 in 102 mm Wire Spool Installing Wire Spool And Adjusting Hub TensionDo not move or operate unit where it could tip Turn off welding power source Installing Contact Tip And NozzleInput Power Threading Welding WireControls − OperationOperating The Gun Routine Maintenance − Maintenance &TROUBLESHOOTINGOverload Protection Drive Motor ProtectionSlide replacement wire guide into Changing Drive Roll Or Wire Inlet GuideReplacing Gun Contact Tip Cleaning Gun Liner Replacing Gun Liner End of wire at spool13/16 in 21 mm Trouble Remedy Troubleshooting TableDoes not run Circuit Diagram − Electrical DiagramTypical Fcaw Process Connections − Wire Welding GuidelinesWire Size Amperage Range Typical Control SettingsThickness to Amperage a AmperageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Good Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Porosity Troubleshooting − Excessive SpatterTroubleshooting − Excessive Penetration Possible Causes Corrective ActionsTroubleshooting − Incomplete Fusion Troubleshooting − Lack Of PenetrationTroubleshooting − Burn-Through Troubleshooting − Distortion Troubleshooting − Waviness Of BeadTroubleshooting Guide For Semiautomatic Welding Equipment Wire does not feedMain Assembly − Parts ListDia Part Description Quantity Pkg 225209 Wire Drive AssemblyPage Support ServiceAssistance Hobart Welding Products Contact your Distributor for