Hobart Welding Products 2250 Cleaning Or Replacing Piecemaker 20-A Gun Liner, To Reassemble Gun

Page 24

4-5. Cleaning Or Replacing Piecemaker 20-A Gun Liner

Tools Needed:

Y Disconnect gun from unit.

7/16 in

Contact Tip

Insulator

1/16 in

Nozzle

Adapter

Head Tube

Remove nozzle, contact tip, and adapter.

7/16 in

Loosen setscrew in quick-connect plug. It may also be necessary to loosen setscrew in adapter.

Quick-connect Plug

Remove liner.

Lay gun cable out straight before installing new liner.

 

To Reassemble Gun:

 

Inspect o-rings for chips or cuts be-

 

fore inserting new liner. A light lu-

 

brication on the o-rings will make

 

liner installation easier.

Blow out gun casing.

Insert new liner.

Push liner against quick-connect

 

 

plug and tighten setscrew(s).

 

Cut liner off so that 7/16 in (11 mm)

 

± 1/32 in (.8 mm) sticks out of head

 

tube.

 

Install adapter, contact tip, insula-

 

tor, and nozzle.

Ref. ST-802 290

OM-192 440 Page 20

Page 23 Page 25
Image 24
Page 23 Page 25
Contents Processes DescriptionFrom Hobart to You Table of Contents Page Symbol Usage Marks a special safety messageArc Welding Hazards Electric Shock can killARC Rays can burn eyes and skin Welding can cause fire or explosionFlying Metal can injure eyes Buildup of GAS can injure or killPrincipal Safety Standards EMF Information About PacemakersSignification des symboles Consignes DE Securite Lire Avant UtilisationUN Choc Électrique peut tuer LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un incendie ou une explosion DES Particules Volantes peuvent blesser les yeuxDES Pièces Chaudes peuvent pro- voquer des brûlures graves LE Bruit peut affecter l’ouïeRisque D’INCENDIE OU LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité Information sur les champs électromagnétiquesConsignes relatives aux stimulateurs cardiaques Specifications Exceeding duty cycle can damage unit and void warrantyIntroduction Duty Cycle And OverheatingInstalling Welding Gun Volt-Ampere CurvesInstalling Work Clamp Setting Gun Polarity For Wire TypeInstalling Gas Supply Installing Wire Spool And Adjusting Hub TensionElectrical Service Guide Changing Input Voltage From 230 Volts To 200 VoltsInput Voltage Min Grounding Conductor Size In AWG/KcmilSelecting a Location And Connecting Input Power Threading Welding Wire Hold wire tightly to keep it from unravelingOperation ControlsWeld Parameters Maintenance and Troubleshooting Routine MaintenanceCircuit Breakers MonthsReplacing Drive Roll And Wire Inlet Guide Turn Off power before replacing contact tipReplacing Gun Contact Tip Cleaning Or Replacing Piecemaker 20-A Gun Liner Disconnect gun from unitTo Reassemble Gun Welding Troubleshooting Table Wire Drive/Gun Troubleshooting TableWire Drive/Gun Trouble Remedy Welding Trouble RemedyElectrical Diagram Circuit Diagram For Welding Power SourceOM-192 440 Parts List Main AssemblyItem Dia Part Mkgs Description Quantity Center Baffle w/Components Center Baffle w/Components -1 Item Rear Panel w/Components Front Panel w/Components Gun And Cable Assembly, Piecemaker 20-A Part Description Quantity Page Page Page Effective January 1 CallContact your Distributor for Hobart Welding Products
Top Page Image Contents