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Protect Your Investment! Hobart Welders manufactures a full line of welders and welding related equipment. For information on other quality Hobart products, contact your local Hobart distributor to receive the latest full line catalog or individual specification sheets.
SECTION 1 −SAFETY PRECAUTIONS FOR GMAW WELDING GUNS − READ BEFORE USING SR7_2007−04 Protect yourself and others from injury — read and follow these precautions. 1-1. Symbol Usage DANGER! − Indicates a hazardous situation which, if Indicates special instructions. not avoided, will result in death or serious injury. The possible hazards are shown in the adjoining symbols or explained in the text.
1-3. EMF Information Considerations About Welding And The Effects Of Low Frequency 1. Keep cables close together by twisting or taping them, or using a Electric And Magnetic Fields cable cover. 2. Arrange cables to one side and away from the operator. Welding current, as it flows through welding cables, will cause electro- magnetic fields.
SECTION 2 − INSTALLATION 2-1. Specifications Air-Cooled Welding Gun For GMAW And FCAW Welding Note: Using gasless flux cored wire reduces gun duty cycle. H100S4-10 Feeds .023 To .045 in. (0.6 To 1.1 mm) Hard Or Flux Cored Wires Duty Cycle Rating: 100%: 100 A With CO Shielding Gas 60%: 100 A With Mixed Gases...
2-3. Installing Gun Gun Securing Knob Gun End Loosen knob. Insert gun end until it bottoms against drive assembly. Tighten knob. Gun Trigger Plug Insert into receptacle, and tighten threaded collar. Friction Terminals Some applications will require cutting off trigger plug and installing 0.250 female friction terminals onto end of leads.
SECTION 4 − MAINTENANCE & TROUBLESHOOTING 4-1. Removing Nozzle, Contact Tip, And Adapter, Changing Liner, And Cleaning Gun Casing Turn off welding power source/wire feeder. Nozzle Contact Tip Tip Adapter Head Tube Wire size stamped on tip − check and match wire size. Cut off wire and 8 mm disconnect gun...
4-2. Replacing Switch And/Or Head Tube Turn Off welding power source /wire feeder and disconnect gun. Remove handle halves. Remove screws (5) and nuts (4). Remove switch housing. Install new Remove screw on switch and connect leads (polarity is opposite side. important).
4-3. Routine Maintenance Turn Off welding power source and disconnect gun before maintaining. Each Spool Of Wire Clean Blow Out Nozzle And Check Casing Contact Tip 3 Months Replace Cracked Control Parts Cord Hose 4-4. Troubleshooting Trouble Remedy Wire does not feed; wire is not ener- Check contact tip.
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Effective January 1, 2009 5/3/1 WARRANTY applies to all Hobart welding equipment, plasma cutters and spot welders with a Warranty Questions? serial number preface of LK or newer. Call This limited warranty supersedes all previous Hobart warranties and is exclusive with 1-800-332-3281 no other guarantees or warranties expressed or implied.
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Owner’s Record Please complete and retain with your personal records. Protect Your Investment! Model Name Serial/Style Number Purchase Date (Date which equipment was delivered to original customer.) Distributor Address City Register your product at: HobartWelders.com State Resources Available Always provide Model Name and Serial/Style Number. To locate a Distributor, Contact your Distributor for: retail or service location:...
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