Hobart Welding Products 187 manual Installation, Installing Nozzle, Contact Tip, And Adapter

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SECTION 5 − INSTALLATION

5-1. Installing Nozzle, Contact Tip, And Adapter

		!	Turn	off	welding	power
2			source.
2	3	1	Nozzle
	3	1	Nozzle
	Head	2	Contact Tip
	Head
1	Tube	3	Tip Adapter
1		. Wire size stamped on tip − check
		. Wire size stamped on tip − check
			and match wire size.
8 mm
Tools Needed:
8 mm
						246 669-A

5-2. Installing Welding Gun

4

2

3

1

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

3

3

1Drive Assembly

2Gun Securing Thumbscrew

3Gun 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.

4 Gun Trigger Leads

Insert leads, one at a time, through gun opening on front panel. Connect female friction terminals to matching male terminals in unit. Polarity is not important.

Close door.

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

804 621-A

OM-228 187 Page 13

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Contents Processes OM-228 187BDescription 2010−01Protect Your Investment From Hobart to YouTable of Contents − Parts List Arc Welding Hazards Symbol UsageElectric Shock can kill HOT Parts can burnARC Rays can burn eyes and skin Fumes and Gases can be hazardousWelding can cause fire or explosion Flying Metal or Dirt can injure eyesFire or Explosion hazard Welding Wire can injureFalling Equipment can injure Moving Parts can injureCalifornia Proposition 65 Warnings Principal Safety StandardsEMF Information About Implanted Medical DevicesUNE Décharge Électrique peut entraîner la mort Symboles utilisésLE Soudage peut provoquer un incendie ou une explosion LES Pièces Chaudes peuvent provoquer des brûluresLES Fumées ET LES GAZ peuvent être dangereux LES Bouteilles peuvent exploser si elles sont endommagées LE Bruit peut endommager l’ouïeRisque D’INCENDIE OU LA Chute DE L’ÉQUIPEMENT peut provoquer des blessuresLes Pièces Mobiles peuvent causer des blessures Proposition californienne 65 AvertissementsLES Fils DE Soudage peuvent provoquer des blessures LE Soudage À L’ARC risque de provoquer des interférencesEn ce qui concerne les implants médicaux Principales normes de sécuritéInformations relatives aux CEM OM-228 187 Symbols And Definitions − SpecificationsSpecifications − DefinitionsVolt-Ampere Curves Duty Cycle And OverheatingAmperes OutputInstalling Welding Gun − InstallationInstalling Nozzle, Contact Tip, And Adapter Installing Work Clamp Changing Polarity Turn off welding power sourceProcess/Polarity Table Installing Gas Supply Selecting a Location And Connecting Input Power Installing Wire Spool And Adjusting Hub Tension Electrical Service GuideHold wire tightly to keep it from unraveling Threading Welding WireControls − OperationOM-228 187 CFH Weld Parameter Chart227010 Routine Maintenance − Maintenance & TroubleshootingOverload Protection Drive Motor ProtectionChanging Drive Roll Or Wire Inlet Guide Thread wire according to Replacing Switch And/Or Head Tube Trouble Remedy Troubleshooting TableOM-228 187 Circuit Diagram − Electrical Diagram228 180-A Typical MIG Process Connections − MIG Welding Gmaw GuidelinesSelect Voltage Typical MIG Process Control SettingsWire Size Amperage Range Groove Welds Holding And Positioning Welding GunConditions That Affect Weld Bead Shape Gun Movement During Welding Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Troubleshooting − Porosity Troubleshooting − Excessive SpatterTroubleshooting − Excessive Penetration Possible Causes Corrective ActionsTroubleshooting − Burn-Through Troubleshooting − Lack Of PenetrationTroubleshooting − Incomplete Fusion Troubleshooting − Distortion Troubleshooting − Waviness Of BeadApplication Troubleshooting Guide For Semiautomatic Welding EquipmentCommon MIG Shielding Gases Welding arc not stable Wire slipping in drive rolls Main Assembly − Parts ListDia Part Description Quantity 228 245 H100S2-10 GunOptions Optional Drive RollsAssistance ServiceSupport Hobart Welding Products Contact your Distributor for