Hobart Welding Products H-9A Gun manual Replacing Switch And/Or Head Tube, Tools Needed Mm, 11/16

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5-5. Replacing Switch And/Or Head Tube

Twist handle locking ring counterclockwise 1/4 turn and slide it down cable. Separate gun handle by lifting top rear portion up and sliding forward over head tube.

YTurn Off welding power source.

Slide trigger assembly forward and out of lower portion of handle. Disconnect leads. Install new switch and connect leads (polarity is not important). Reassemble in reverse order. If replacing head tube, continue to end of figure.

Remove nozzle, contact tip, and adapter. Secure head tube in vice. Loosen cable connector. Remove from vice and turn head tube out by hand.

8 mm

Hand-tighten head tube into cable connector. Place head tube in vice and tighten until cable connector is tight.

Lower top portion of handle onto bottom of handle. Slide locking ring over rear of handle, and secure with by twisting ring clockwise 1/4 turn.

Reassemble gun by placing head tube into bottom section of handle.

Slide top portion of handle over head tube.

Thread welding wire through gun (see Section 3-4). Reinstall adapter, contact tip, and nozzle.

Tools Needed:

8 mm, 11/16 in

803 496-B / 803 498-A

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Contents Visit our website at 220 361AJune Flux Cored Fcaw Welding MIG Gmaw Welding OptionalFrom Hobart to You Table of Contents Page Symbol Usage Marks a special safety messageMeans Note not safety related Fcaw And Gmaw Gun HazardsEMF Information About Pacemakers− Safety Information − InstallationSpecifications Duty Cycle And OverheatingInstalling Gun Into Welding Power Source Turn off welding power sourceThread wire according to Section If existing gun requires removal, see SectionThreading Welding Wire Hold wire tightly to keep it from unraveling− Operation Operating The GunCleaning Gun Liner − Maintenance & TroubleshootingReplacing Gun Contact Tip Remove black sleeving from end of replacement liner Replacing Gun LinerLoosen liner setscrew With allen wrench19 mm Replacing Liner O-Ring Replacing Liner O-Ring Replacing Switch And/Or Head Tube Tools Needed Mm, 11/16Removing Gun From Welding Power Source Disconnect weld cable from weld terminal Remove wrapper fromRoutine Maintenance Each Spool Of WireTroubleshooting Gized wire feeds unevenly− Parts List − See TablePkg PkgWork like a Pro Page Page Service SupportCall For assistance in filing or settling claims, contactYour distributor and/or equipment manufacturer’s Transportation Department
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