Miller Gold Seal 422 Owner'S Manual Download Page 25

OM-187 926 Page 23

7-3. Holding And Positioning Welding Gun

Welding wire is energized when gun trigger is pressed. Before lowering helmet and

pressing trigger, be sure wire is no more than 1/2 in (13 mm) past end of nozzle,

and tip of wire is positioned correctly on seam.

NOTE

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

°

GROOVE WELDS

FILLET WELDS

End View Of Work Angle

Side View Of Gun Angle

End View Of Work Angle

Side View Of Gun Angle

1

0

°

-15

°

S-0421-A

Summary of Contents for Gold Seal 422

Page 1: ...Processes OM 187 926 February 1998 Gold Seal 422 Arc Welding Power Source And Wire Feeder Description MIG GMAW Welding Flux Cored FCAW Welding...

Page 2: ......

Page 3: ...s connected to a properly grounded receptacle outlet D When making input connections attach proper grounding conduc tor first double check connections D Frequently inspect input power cord for damage...

Page 4: ...welding wire at contact tip when not in use D Wear oil free protective garments such as leather gloves heavy shirt cuffless trousers high shoes and a cap D Remove any combustibles such as a butane lig...

Page 5: ...maintained D Keep high frequency source doors and panels tightly shut keep spark gaps at correct setting and use grounding and shielding to minimize the possibility of interference ARC WELDING can cau...

Page 6: ...is a human health hazard However studies are still going forth and evidence continues to be examined Until the final conclusions of the research are reached you may wish to minimize your exposure to e...

Page 7: ...rne de terre du sectionneur ou que la fiche du cordon est raccord e une prise correctement mise la terre D En effectuant les raccordements d entr e fixer d abord le conducteur de mise la terre appropr...

Page 8: ...er des v tements de protection d pourvus d huile tels que des gants en cuir une chemise en mat riau lourd des pantalons sans re vers des chaussures hautes et un couvre chef D Avant de souder retirer t...

Page 9: ...ouvrements et dispositifs de protection LE RAYONNEMENT HAUTE FR QUENCE H F risque de provoquer des interf rences D Le rayonnement haute frequence peut provoquer des interf rences avec les quipements d...

Page 10: ...ons g n rales du document intitul Biological Effects of Power Frequency Electric Magnetic Fields Background Paper OTA BP E 53 Washington DC U S Govern ment Printing Office mai 1989 publi par le Office...

Page 11: ...inum Wire Feed Speed Range At No Load Wire Type And Dia 023 030 in 0 6 0 8 mm 030 035 in 0 8 0 9 mm 130 790 IPM 3 3 20 m min While idling 2 2 Duty Cycle And Overheating Duty Cycle is percentage of 10...

Page 12: ...NSTALLATION 3 1 Selecting A Location 1 Rating Label 2 Grounded Receptacle A 115 volt 20 ampere individual branch circuit protected by time de lay fuses or circuit breaker is re quired 3 Plug From Unit...

Page 13: ...male friction terminals to matching male terminals in unit Polarity is not important Close door 4 1 2 3 3 3 Changing Polarity Set for Electrode Positive DCEP for solid steel or alumi num wires GTAW pr...

Page 14: ...rtical 5 Regulator Flowmeter Gas Hose Connection 6 Welding Power Source Gas Hose Connection Connect customer supplied gas hose between regulator flowmeter gas hose connection and fitting on rear of we...

Page 15: ...Spool And Adjusting Hub Tension S 0499 15 16 in Standard Wire Spool 1 Lb Wire Spool Turn wingnut When a slight force is needed to turn spool tension is set Tools Needed Adjusting Hub Tension Install s...

Page 16: ...in 102 mm Tighten Remove gun nozzle and contact tip Open pressure assembly Push wire thru guides into gun continue to hold wire Close and tighten pressure assembly and let go of wire Hold wire tightly...

Page 17: ...abel in welding power source Do not switch under load 2 Voltage Switch Fan Only Position In Fan Only position fan runs but there is no weld output 3 Wire Speed Control Use control to select a wire fee...

Page 18: ...ow out or vacuum inside During heavy service clean monthly Or 5 2 Changing Drive Roll Or Wire Inlet Guide 1 Inlet Wire Guide Securing Screw 2 Inlet Wire Guide Loosen screw Slide tip as close to drive...

Page 19: ...ools Needed 1 2 5 4 Short Circuit Shutdown If contact tip is shorted and sticks to workpiece the unit shuts down but fan runs To resume operation release gun trigger turn Off unit and remove contact t...

Page 20: ...collet onto liner and tighten into gun feeder connector using wrench Cut liner off near collet so that liner end is as close to drive rolls as pos sible without touching Install nozzle Remove nozzle...

Page 21: ...t tip see Section 5 5 Check for proper polarity connections see Section 3 3 Low weld output Connect unit to proper input voltage or check for low line voltage Place voltage switch in desired position...

Page 22: ...OM 187 926 Page 20 SECTION 6 ELECTRICAL DIAGRAM SB 210 045 Figure 6 1 Circuit Diagram...

Page 23: ...ctions Y 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 Wire Feeder Power Source Work...

Page 24: ...5 in 023 in 40 145 A 50 180 A 30 90 A 035 in Select Wire Speed Select Voltage Wire Recommendation 030 in 035 in 023 in 2 in per ampere 1 6 in per ampere 3 5 in per ampere Wire Speed 2 x 125 A 250 ipm...

Page 25: ...13 mm past end of nozzle and tip of wire is positioned correctly on seam NOTE 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 Crad...

Page 26: ...ctrode extension stickout travel speed thickness of base metal wire feed speed weld current and voltage NOTE Short Normal Long Short Normal Long 10 10 GUN ANGLES AND WELD BEAD PROFILES ELECTRODE EXTEN...

Page 27: ...ment 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 7 6 Poor Weld Bead Characteristics 1 Large Spatter Deposits 2 Rough Uneven Bead 3 S...

Page 28: ...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 no...

Page 29: ...on 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 pa...

Page 30: ...upport hand on solid surface or use two hands 7 15 Troubleshooting Distortion Distortion contraction of weld metal during welding that forces base metal to move Base metal moves in the direction of th...

Page 31: ...e most commonly used shielding gases are listed in the following table Application Gas Spray Arc Steel Short Circuiting Steel Short Circuiting Stainless Steel Short Circuiting Aluminum Argon All Posit...

Page 32: ...ST Hardware is common and not available unless listed ST 802 027 Figure 8 1 Complete Assembly 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 30 31 32 33 34 35 36 37 38 3...

Page 33: ...in nyl 1 29 S1 116 830 SWITCH rocker DPST 10A 250VAC 1 30 097 922 KNOB pointer 1 31 186 217 KNOB pointer 1 32 S2 409 477 SWITCH rotary 1 33 R1 186 207 RHEOSTAT ww 25W 16 ohm 1 34 006 426 CLAMP mountin...

Page 34: ...113 017 NOZZLE slip type 3 8 orifice 2 pack 1 10 110 794 TRIGGER SWITCH ASSEMBLY 1 11 080 565 TERMINAL frict uninsul fem 22 18ga 2 12 110 792 CABLE 10ft 1 13 110 797 SLEEVE rubber 1 14 167 440 LINER m...

Page 35: ...l due to normal wear 3 Equipment that has been modified by any party other than manufacturer or equipment that has been improperly installed improperly operated or misused based upon industry standard...

Page 36: ...Style Number Contact your Distributor for Welding Supplies and Consumables Options and Accessories Personal Safety Equipment Service and Repair Replacement Parts Owner s Manuals Circuit Diagrams Cont...

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