Hobart Welding Products H-9A Gun manual Maintenance & Troubleshooting, Replacing Gun Contact Tip

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SECTION 5 − MAINTENANCE & TROUBLESHOOTING

5-1. Replacing Gun Contact Tip

 

 

 

Y Turn off welding power source.

 

 

 

1

Nozzle

 

 

 

Remove nozzle.

 

 

 

2

Contact Tip

 

2

3

3

Tip Adapter

 

 

Cut off welding wire at contact tip.

Tools Needed:

 

 

1

 

Remove contact tip from tip adapter,

 

 

 

 

 

and install new contact tip. Reinstall

 

 

 

nozzle.

 

 

 

 

Ref. 803 496-B

5-2. Cleaning Gun Liner

 

 

 

 

 

 

Y Turn off welding power source.

 

 

 

1

Nozzle

 

 

 

2

Contact Tip

 

 

 

3

Adapter

1

Head

 

 

 

Tube

 

 

 

 

 

 

 

2

3

 

 

 

 

 

 

 

8 mm

Remove nozzle. Cut off wire

Open pressure assembly. Retract

. Hold wire tightly to keep it

at contact tip, and remove

wire from liner onto spool.

from unraveling. Secure

contact tip and tip adapter.

 

 

 

 

 

 

end of wire at spool.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tools Needed:

Lay gun cable out straight, and blow out liner.

8 mm

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

Reassemble drive cover

. Thread wire according to

and gun in reverse order

Section 3-4.

from taking it apart.

 

 

803 496-B / 803 838-A

OM-952 Page 7

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Contents Flux Cored Fcaw Welding MIG Gmaw Welding Optional Visit our website at220 361A JuneFrom Hobart to You Table of Contents Page Fcaw And Gmaw Gun Hazards Symbol UsageMarks a special safety message Means Note not safety relatedAbout Pacemakers EMF InformationDuty Cycle And Overheating − Safety Information− Installation Specifications If existing gun requires removal, see Section Installing Gun Into Welding Power Source Turn off welding power source Thread wire according to SectionHold wire tightly to keep it from unraveling Threading Welding WireOperating The Gun − OperationReplacing Gun Contact Tip − Maintenance & TroubleshootingCleaning Gun Liner With allen wrench Remove black sleeving from end of replacement linerReplacing Gun Liner Loosen liner setscrew19 mm Replacing Liner O-Ring Replacing Liner O-Ring Tools Needed Mm, 11/16 Replacing Switch And/Or Head TubeDisconnect weld cable from weld terminal Remove wrapper from Removing Gun From Welding Power SourceGized wire feeds unevenly Routine MaintenanceEach Spool Of Wire TroubleshootingPkg − Parts List− See Table PkgWork like a Pro Page Page Support ServiceTransportation Department CallFor assistance in filing or settling claims, contact Your distributor and/or equipment manufacturer’s