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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.

To locate your nearest distributor or service agency call 1-877-Hobart1 or
visit our website at www.HobartWelders.com.

For Technical Help call 1-800-332-3281.

Thank you

 and 

congratulations

 on choosing Hobart. Now you can get the

job done and get it done right. We know you don’t have time to do it any
other way.

This Owner’s Manual is designed to help you get the most out of your
Hobart products. Please take time to read the Safety precautions. They
will help you protect yourself against potential hazards on the worksite.

We’ve made installation and operation quick
and easy. With Hobart you can count on years
of reliable service with proper maintenance.
And if for some reason the unit needs repair,
there’s a Troubleshooting section that will help
you figure out what the problem is. The parts
list will then help you to decide the exact part
you may need to fix the problem. Warranty and
service information for your particular model
are also provided.

Hobart is  registered to the

ISO 9001 Quality System

Standard.

Working as hard as you

do 

 every power source

from Hobart is backed by

the best warranty in the

business.

From Hobart to You

Hob_Thank 2009

09

Register your product at:

HobartWelders.com

Protect Your Investment!

Summary of Contents for H100S2?10 Gun

Page 1: ...Processes OM 228 187B 2010 01 Handler 187 And H100S2 10 Gun Arc Welding Power Source And Wire Feeder Description MIG GMAW Welding Flux Cored FCAW Welding R ...

Page 2: ...oducts Please take time to read the Safety precautions They will help you protect yourself against potential hazards on the worksite We ve made installation and operation quick and easy With Hobart you can count on years of reliable service with proper maintenance And if for some reason the unit needs repair there s a Troubleshooting section that will help you figure out what the problem is The pa...

Page 3: ... 1 Specifications 11 4 2 Duty Cycle And Overheating 12 4 3 Volt Ampere Curves 12 SECTION 5 INSTALLATION 13 5 1 Installing Nozzle Contact Tip And Adapter 13 5 2 Installing Welding Gun 13 5 3 Installing Work Clamp 14 5 4 Process Polarity Table 15 5 5 Changing Polarity 15 5 6 Installing Gas Supply 16 5 7 Selecting A Location And Connecting Input Power 17 5 8 Electrical Service Guide 18 5 9 Installing...

Page 4: ...tics 36 9 7 Good Weld Bead Characteristics 36 9 8 Troubleshooting Excessive Spatter 37 9 9 Troubleshooting Porosity 37 9 10 Troubleshooting Excessive Penetration 37 9 11 Troubleshooting Lack Of Penetration 38 9 12 Troubleshooting Incomplete Fusion 38 9 13 Troubleshooting Burn Through 38 9 14 Troubleshooting Waviness Of Bead 39 9 15 Troubleshooting Distortion 39 9 16 Common MIG Shielding Gases 40 9...

Page 5: ...olds when in cramped positions such as sitting kneeling or lying or when there is a high risk of unavoid able or accidental contact with the workpiece or ground For these conditions use the following equipment in order presented 1 a semiautomaticDC constant voltage wire welder 2 a DC manual stick welder or 3 an AC welder with reduced open circuit volt age In most situations use of a DC constant vo...

Page 6: ...nless they are properly prepared according to AWS F4 1 see Safety Standards D Do not weld where the atmosphere may contain flammable dust gas or liquid vapors such as gasoline D Connect work cable to the work as close to the welding area as practical to prevent welding current from traveling long possibly unknown paths and causing electric shock sparks and fire hazards D Do not use welder to thaw ...

Page 7: ... panels covers and guards closed and securely in place D Have only qualified persons remove doors panels covers or guards for maintenance and troubleshooting as necessary D Reinstall doors panels covers or guards when maintenance is finished and before reconnecting input power READ INSTRUCTIONS D Read and follow all labels and the Owner s Manual carefully before installing operating or servicing u...

Page 8: ...Other Hot Work NFPA Standard 51B from National Fire Protection Association Quincy MA 02269 phone 1 800 344 3555 website www nfpa org OSHA Occupational Safety and Health Standards for General Indus try Title 29 Code of Federal Regulations CFR Part 1910 Subpart Q and Part 1926 Subpart J from U S Government Printing Office Super intendentof Documents P O Box 371954 Pittsburgh PA 15250 7954 phone 1 86...

Page 9: ...urant électrique s avère nécessaire se servir de la fonction de télécommande si l appareil en est équipé D D autres consignes de sécurité sont nécessaires dans les condi tions suivantes risques électriques dans un environnement humideou si l on porte des vêtements mouillés sur des structures métalliquestelles que sols grilles ou échafaudages en position coincée comme assise à genoux ou couchée ou ...

Page 10: ... ou laine et des bottes de protection LE SOUDAGE peut provoquer un incendie ou une explosion Le soudage effectué sur des conteneurs fermés tels que des réservoirs tambours ou des conduites peut provoquer leur éclatement Des étincelles peuvent être projetées de l arc de soudure La projection d étincelles des pièces chaudes et des équipements chauds peut provoquer des incendies et des brûlures Le co...

Page 11: ...ur D Utiliser les équipements corrects les bonnes procédures et suffi samment de personnes pour soulever et déplacer les bouteilles D Lire et suivre les instructions sur les bouteilles de gaz comprimé l équipement connexe et le dépliant P 1 de la CGA Compressed Gas Association mentionné dans les principales normes de sécu rité 2 3 Dangers supplémentaires en relation avec l installation le fonction...

Page 12: ...sement fermés les portes et les panneaux des sources de haute fréquence maintenir les éclateurs à une distan ce correcte et utiliser une terre et un blindage pour réduire les interférences éventuelles LE SOUDAGE À L ARC risque de provoquer des interférences D L énergie électromagnétique risque de provoquer des interférences pour l équipement électroniquesensible tel que les ordinateurs et l équipe...

Page 13: ...n 5 Chicago est 312 353 2220 site Internet www osha gov U S Consumer Product Safety Commission CPSC 4330 East West Highway Bethesda MD 20814 téléphone 301 504 7923 site inter net www cpsc gov Applications Manual for the Revised NIOSH Lifting Equation The National Institute for Occupational Safety and Health NIOSH 1600 Clifton Rd Atlanta GA 30333 télé hone 1 800 232 4636 site internet www cdc gov N...

Page 14: ...OM 228 187 Page 10 ...

Page 15: ...e Range Maximum Open Circuit Voltage DC Amperes Input at Rated Load Output 230 V 50 60 Hz Single Phase KVA KW Weight W Gun Overall Dimensions 130 A 21 5 Volts DC 30 Duty Cycle At 60 Hz Input 20 Duty Cycle At 50 Hz Input 25 185 31 20 5 4 7 3 88 68 lb 31 kg Length 19 1 2 in 495 mm Width 10 5 8 in 270 mm Height 12 3 8 in 314 mm Wire Type And Diameter Solid Stainless Flux Cored Aluminum Wire Feed Spee...

Page 16: ...or V OR Reduce Duty Cycle Minutes duty1 4 95 217 757 A 30 duty cycle at 130 amps 60 Hz 20 duty cycle at 130 amps 50 Hz 3 Minutes Welding 7 Minutes Resting 10 20 30 40 50 60 70 80 100 10 20 40 60 80 100 130 175 200 Duty Cycle Output Amperes 4 3 Volt Ampere Curves The volt ampere curves show the minimum and maximum voltage and amperage output capabilities of the welding power source Curves of other ...

Page 17: ...Gun 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 Correct Incorrect Be sur...

Page 18: ...eeves Slide one insulating sleeve over work cable before connecting to clamp Slide insulating sleeves over handles 802 456 A Connection hardware must be tightened with proper tools Do not just hand tighten hardware A loose electrical connection will cause poor weld performance and excessive heating of the work clamp Tools Needed 7 16 in 7 16 in 1 2 3 4 5 6 ...

Page 19: ...POLARITY 5 5 Changing Polarity Turn off welding power source 1 Lead Connections For Direct Current Electrode Negative DCEN 2 Lead Connections For Direct Current Electrode Positive DCEP Always read and follow wire manufacturer s recommended polarity and see Section 5 4 Close door Ref 209 228 Ref 209 229 1 2 DCEN Electrode negative for flux cored wire DCEP Electrode positive for solid wire Connectio...

Page 20: ...r gas hose connection and fitting on rear of welding power source 7 Flow Adjust Flow rate should be set when gas is flowing through welding power source and welding gun Open feedhead pressure assembly so that wire will not feed Press gun trigger to start gas flow Typical flow rate is 20 cfh cubic feet per hour Check wire manufacturer s recommended flow rate After flow is set close feedhead pressur...

Page 21: ... Conductor 4 Input Power Cord 5 Disconnect Device switch shown in the OFF position 6 Disconnect Device Grounding Terminal 7 Disconnect Device Line Terminals Connect green or green yellow groundingconductor to disconnect device grounding terminal first Connect input conductors L1 and L2 to disconnect device line terminals 8 Receptacle NEMA 6 50R Connect receptacle as shown 9 Over Current Protection...

Page 22: ...ose a circuit breaker with time current curves comparable to the recommended fuse 2 Time Delay fuses are UL class RK5 See UL 248 3 Normal Operating general purpose no intentional delay fuses are UL class K5 up to and including 60 amps and UL class H 65 amps and above 4 Conductor data in this section specifies conductor size excluding flexible cord or cable between the panelboard and the equipment ...

Page 23: ...eck drive roll pressure Tighten knob enough to prevent slipping Cut off wire Close door Press gun trigger until wire comes out of gun Turn power on Be sure that Voltage range switch is set to range 1 2 3 4 5 6 or 7 to feed wire Rotate knob until it clicks into det ent Wire will not feed if range switch is set between ranges 6 in 150 mm Tighten 1 2 3 4 Use pressure indicator scale to set a desired ...

Page 24: ... welding power source or Section 6 2 as applicable 2 Power Switch 3 Voltage Switch The higher the selected number the thicker the material that can be welded see weld setting label in welding power source or Section 6 2 as applicable Do not switch under load Switch must click into detent position 4 Trigger Switch When pressed energized wire feeds and shielding gas flows Ref 228 178 A Ref 246 668 A...

Page 25: ...OM 228 187 Page 21 Notes ...

Page 26: ...CEN Solid Wire ER70S 6 Set Polarity for DCEP Solid Wire ER70S 6 Set Polarity for DCEP Stainless Steel Set Polarity for DCEP Aluminum Set Polarity for DCEP Good for windy or outdoor applications Produces less spatter Better appearance 1 35 1 30 2 40 1 40 3 40 3 40 1 30 3 30 3 15 CFH ...

Page 27: ... 5 60 5 50 5 60 5 50 5 40 5 50 4 35 6 90 6 60 6 50 6 80 6 50 6 40 6 60 5 35 6 70 7 50 7 90 7 50 5 40 6 40 7 70 7 40 7 50 7 60 6 35 7 80 7 60 7 50 7 40 1 35 3 50 2 50 4 40 3 35 4 40 6 60 4 50 3 40 6 50 4 30 3 35 7 50 7 40 5 40 4 30 7 90 6 90 2 90 7 90 6 90 2 100 3 35 1 40 2 40 5 35 3 25 4 25 ...

Page 28: ...t or vacuum inside During heavy service clean monthly Or 7 2 Overload Protection 802 441 1 SupplementaryProtector CB1 CB1 protects unit from overload If CB1 opens unit shuts down Reset supplementary protector 1 7 3 Drive Motor Protection Drive motor protection circuit protects drive motor from overload If drive motor becomes inoperative release gun trigger and wait until protection circuit resets ...

Page 29: ... slide it out over the retaining pin To secure drive roll locate open slot and push drive roll completely over retaining pin then rotate drive roll 1 4 turn to closed slot 4 Drive Roll The drive roll consists of two different sized grooves The stamped markings on the end surface of the drive roll refers to the groove on the opposite side of the drive roll The groove closest to the motor shaft is t...

Page 30: ...atch wire size Tools Needed 8 mm 10 mm Lay gun cable out straight before installing new liner Remove nozzle contact tip and adapter Unscrew and remove liner Blow out gun casing Cut off wire and disconnect gun from feeder 5 8 in 16 mm Liner Stickout Install Liner Reassemble gun in reverse order from taking it apart 10 mm Head Tube 8 mm 1 3 2 Thread wire according to welding power source wire feeder...

Page 31: ...andle halves and install switch housing Turn Off welding power source wire feeder and disconnect gun Remove switch housing Install new switch and connect leads polarity is not important Reassemble in reverse order If replacing head tube continue to end of figure 1 2 3 8 6 7 Remove screw on opposite side Secure head tube in vice Loosen jam nut Remove from vice and turn head tube out by hand 4 5 phi...

Page 32: ...s in gun cable Blow out liner and gun casing see Section 7 5 Low weld output Connect unit to proper input voltage or check for low line voltage Place voltage switch in desired position see Section 6 1 Electrode wire feeding stops during welding Straightengun cable and or replace damaged parts Adjust drive roll pressure see Section 5 10 Change to proper drive roll groove see Section 7 4 Readjust hu...

Page 33: ...OM 228 187 Page 29 Notes ...

Page 34: ...OM 228 187 Page 30 SECTION 8 ELECTRICAL DIAGRAM Figure 8 1 Circuit Diagram ...

Page 35: ...OM 228 187 Page 31 228 180 A ...

Page 36: ...Wire Feeder Power Source Workpiece Gun Regulator Flowmeter Gas Shielding Gas Work Clamp 9 1 Typical MIG Process Connections Weld current can damage electronic parts in vehicles Disconnect both battery cables before welding on a vehicle Place work clamp as close to the weld as possible ...

Page 37: ...parameters 035 in Recommendation Wire Speed Approx 1 8 or 0 125 in 0 001 in 1 ampere 0 125 in 125 A Wire Size Amperage Range 0 023 in 0 030 in 0 035 in Select Wire Size Wire Size 0 023 in 0 030 in 0 035 in 3 5 in per ampere 2 in per ampere 1 6 in per ampere Select Wire Speed Amperage 125 A based on 1 8 in material thickness ipm inches per minute Low voltage wire stubs into work High voltage arc is...

Page 38: ... in 13 mm past end of nozzle and tip of wire is positioned correctly on seam 1 Hold Gun and Control Gun Trigger 2 Workpiece 3 Work Clamp 4 Electrode Extension Stickout 1 4 to 1 2 in 6 To 13 mm 5 Cradle Gun and Rest Hand on Workpiece 2 3 5 4 90 90 0 15 45 45 1 0 15 S 0421 A End View of Work Angle Side View of Gun Angle GROOVE WELDS End View of Work Angle Side View of Gun Angle FILLET WELDS ...

Page 39: ... electrode extension stickout travel speed thickness of base metal wire feed speed weld current and voltage Slow FILLET WELD ELECTODE EXTENSIONS STICKOUT ELECTRODE EXTENSIONS STICKOUT GUN ANGLES AND WELD BEAD PROFILES 10 10 GUN TRAVEL SPEED S 0634 Push Perpendicular Drag Short Normal Long Short Normal Long Normal Fast ...

Page 40: ...nt Along Seam 3 Weave Patterns Use weave patterns to cover a wide area in one pass of the electrode S 0054 A 3 1 2 9 6 Poor Weld Bead Characteristics 1 Large Spatter Deposits 2 Rough Uneven Bead 3 Slight Crater During Welding 4 Bad Overlap 5 Poor Penetration 5 4 2 3 1 S 0053 A 9 7 Good Weld Bead Characteristics 1 Fine Spatter 2 Uniform Bead 3 Moderate Crater During Welding Weld a new bead or layer...

Page 41: ...s in weld metal S 0635 Possible Causes Corrective Actions Insufficient shielding gas at welding arc Increase flow of shielding gas at regulator flowmeter and or prevent drafts near welding arc Remove spatter from gun nozzle Check gas hoses for leaks Place nozzle 1 4 to 1 2 in 6 13 mm from workpiece Hold gun near bead at end of weld until molten metal solidifies Wrong gas Use welding grade shieldin...

Page 42: ... welding power source 9 12 Troubleshooting Incomplete Fusion Incomplete Fusion failure of weld metal to fuse completely with base metal or a preceeding weld bead S 0637 Possible Causes Corrective Actions Workpiece dirty Remove all grease oil moisture rust paint undercoating and dirt from work surface before welding Insufficient heat input Select higher voltage range and or adjust wire feed speed I...

Page 43: ...Support hand on solid surface or use two hands 9 15 Troubleshooting Distortion Distortion contraction of weld metal during welding that forces base metal to move Base metal moves in the direction of the weld bead S 0642 Possible Causes Corrective Actions Excessive heat input Use restraint clamp to hold base metal in position Make tack welds along joint before starting welding operation Select lowe...

Page 44: ...if damaged Check size of contact tip and cable liner replace if necessary Wire curling up in front of the wire feed rolls bird nesting Too much pressure on wire feed rolls Decrease pressure setting on wire feed rolls Incorrect cable liner or gun contact tip size Check size of contact tip and check cable liner length and diameter replace if necessary Gun end not inserted into drive housing properly...

Page 45: ...necessary Wrong size gun liner or contact tip Match liner and contact tip to wire size and type Incorrect voltage setting for selected wire feed speed on welding power source Readjust welding parameters Loose connections at the gun weld cable or work cable Check and tighten all connections Gun in poor shape or loose connection inside gun Repair or replace gun as necessary ...

Page 46: ...T Hardware is common and not available unless listed 804 624 A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 34 32 31 49 43 48 47 46 45 44 51 50 36 35 42 41 40 38 39 37 30 33 52 53 54 Figure 10 1 Main Assembly ...

Page 47: ...2GA 3 C 7ft SPT 3 jkt 1 16 111 443 BUSHING strain relief 1 17 137 761 NUT gas valve 1 18 196 064 MOTOR fan 1 19 409 953 001 BLADE fan cooling 1 20 226 069 TRANSFORMER power assy 1 21 208 015 HANDLE carrying 1 22 196 005 WRAPPER 1 23 204 036 LABEL warning 1 24 203 491 CLAMP capacitor 1 25 193 040 CAPACITOR electrlt 100000uf 1 26 225 891 REACTOR ASSY 1 27 193 316 RECTIFIER ASSY 1 28 193 193 BUS BAR ...

Page 48: ... 203 025 GUIDE wire inlet 1 50 227 010 LABEL weld chart 1 51 204 711 LATCH 1 52 217 585 CONTACTOR 1 53 203 572 LABEL warn gen precaution EN FR models only 1 54 LABEL nameplate order by model and serial number 1 221 037 REGULATOR FLOWMETER 10 50 CFH argon mix 1 183 581 HOSE assembly gas 1 When ordering a component originally displaying a precautionary label the label should also be ordered To maint...

Page 49: ...ining 1 4 169 716 ADAPTER contact tip 1 5 246 373 TUBE head 1 6 243 865 NUT jam 1 7 242 832 HANDLE 1 8 225 410 SWITCH trigger 1 9 246 380 HOUSING power pin 1 10 245 927 CONNECTOR feeder 1 11 197 123 O RING 312 ID X 062 70 duro buna n 2 12 194 010 LINER monocoil 023 025 wire x 15ft consisting of 1 12 194 011 LINER monocoil 030 035 wire x 15ft consisting of 1 12 194 012 LINER monocoil 035 045 wire x...

Page 50: ...or One Small Gas Cylinder 100 lb 45 kg max 194 776 Small Running Gear Cylinder Rack For One Small Gas Cylinder 75 lb 34 kg max 246 800 H100S2 10 Replacement Gun 10 ft length 030 035 wire size 195 186 Protective Cover Weatherproof nylon 212 492 Regulator Flowmeter For use with CO2 shielding gas 10 50 CFH 144 108 Gas Hose 5 ft For use with regulator flowmeter 212 492 NOTE If individual parts are req...

Page 51: ... to 1 Consumable components such as contact tips cutting nozzles slip rings drive rolls gas diffusers plasma torch tips and electrodes weld cables and tongs and tips or parts that fail due to normal wear Exception brushes slip rings and relays are covered on Hobart Engine Driven models 2 Items furnished by Hobart Miller but manufactured by others such as engines or trade accessories These items ar...

Page 52: ...utor retail or service location Call 1 877 Hobart1 or visit our website at www HobartWelders com Contact your Distributor for Welding Supplies and Consumables Options and Accessories Personal Safety Equipment Service and Repair Replacement Parts Training Schools Videos Books Technical Manuals Servicing Information and Parts Circuit Diagrams Welding Process Handbooks Contact the Delivering Carrier ...

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