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OM-1318 Page 32

7-16. Common MIG Shielding Gases

This is a general chart for common gases and where they are used. Many different combinations (mixtures) of
shielding gases have been developed over the years. The 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 Positions

Argon + 25% CO

2

Flat & Horizontal

1

 Fillet

All Positions

All Positions

2

CO

2

Flat & Horizontal

1

 Fillet

All Positions

Tri-Mix

3

All Positions

1

Globular Transfer

2

Single Pass Welding Only

3

90% HE + 7-1/2% AR + 2-1/2% CO

2

Summary of Contents for 172 M-10 Gun

Page 1: ...Millermatic Challenger 172 And M 10 Gun Processes Description R MIG GMAW Flux Cored FCAW Wire Feeder OM 1318 187923F March 2000 Visit our website at www MillerWelds com...

Page 2: ...alue established in 1929 This Owner s Manual is designed to help you get the most out of your Miller products Please take time to read the Safety precautions They will help you protect yourself agains...

Page 3: ...16 SECTION 4 OPERATION 17 4 1 Controls 17 SECTION 5 MAINTENANCE TROUBLESHOOTING 18 5 1 Routine Maintenance 18 5 2 Drive Motor Fuse F1 18 5 3 Short Circuit Shutdown 18 5 4 Cleaning Or Repairing Drive...

Page 4: ......

Page 5: ...that cord plug is 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...

Page 6: ...lding 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 light...

Page 7: ...aintained 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 caus...

Page 8: ...s 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 el...

Page 9: ...tation est bien raccord la borne 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 conduc...

Page 10: ...r 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 to...

Page 11: ...vrements 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 de...

Page 12: ...champs magn tiques basse fr quence Le courant de soudage pendant son passage dans les c bles de sou dage causera des champs lectromagn tiques Il y a eu et il y a encore un certain souci propos de tels...

Page 13: ...043 80 lb 36 kg Length 17 in 432 mm Width 10 in 254 mm Height 15 1 2 in 394 mm Wire Type And Dia Solid Stainless Flux Cored Aluminum Wire Feed Speed Range At No Load 023 035 in 0 6 0 9 mm 030 045 in...

Page 14: ...50 10 15 20 25 30 40 50 60 70 80 100 DC AMPERES DUTY CYCLE 3 Minutes Welding 7 Minutes Resting 2 4 Welding Gun Duty Cycle And Overheating CAUTION WELDING LONGER THAN RATED DUTY CYCLE can damage gun an...

Page 15: ...Securing Bolt 3 Gun End Loosen securing bolt Insert gun end through opening until it bottoms against drive assembly Tighten bolt 4 Gun Trigger Plug Insert plug into receptacle and tighten threaded co...

Page 16: ...Install so face is vertical 5 Gas Hose Connection Fitting has 5 8 18 right hand threads 6 Gas Fitting Install gas hose between gas hose connction on regulator flowmeter and gas fitting on rear of weld...

Page 17: ...ting general purpose no intentional delay fuses are UL class K5 up to and including 60 amp and UL class H 65 amp and above Y Caution Failure to follow these fuse and circuit breaker recommendations co...

Page 18: ...nstalling Wire Spool And Adjusting Hub Tension S 0499 15 16 in Standard Wire Spool 1 Lb Wire Spool When a slight force is needed to turn spool tension is set Tools Needed Standard Wire Reel Part No 18...

Page 19: ...Push new guide into hole from rear until it snaps in place Tools Needed 1 2 WOOD 6 in 150 mm Pull and hold wire cut off end 4 in 102 mm Open pressure assembly Push wire thru guides into gun continue t...

Page 20: ...35 25 Voltage Tap 4 4 3 3 2 2 030 Wire Speed 70 60 50 40 40 35 E71T GS Voltage Tap 4 4 3 2 1 E71T GS Flux Core 035 Wire Speed 60 50 40 40 40 Voltage Tap 4 4 3 045 Wire Speed 50 45 40 Voltage Tap 4 3 3...

Page 21: ...g label in welding power source Ref ST 187 921 2 4 1 3 2 Voltage Switch Switch must click into detent position 1 2 3 or 4 for proper contact The higher the selected number the thicker the material tha...

Page 22: ...use F1 Y Turn Off power unlatch door and remove wrapper 1 Circuit Board PC1 2 Fuse F1 See Parts List For Rating If drive motor is inoperative pull fuse from fuse holder on PC1 Re place fuse if necessa...

Page 23: ...roll Align drive roll with flat spot on shaft Slide drive roll onto shaft and secure with screw 10 Wire Inlet Guide Remove guide by pressing on barbed area or cutting off one end near housing and pul...

Page 24: ...t 1 8 in 3 mm of liner sticks out Hand tighten outlet guide and then tight en two full turns more Cut liner off so that 3 4 in 19 mm sticks out of head tube Install gas diffuser adapter contact tip an...

Page 25: ...re with handle locking nut If replacing head tube continue to end of figure 3 Slide handle 4 Secure head tube in vice 5 Loosen jam nut Remove from vice and turn head tube out by hand 6 Install existin...

Page 26: ...l to metal contact Replace contact tip see Section 5 5 Check for proper connections at polarity changeover board see Section 3 2 Low weld output Connect unit to proper input voltage or check for low l...

Page 27: ...OM 1316 Page 23 SECTION 6 ELECTRICAL DIAGRAM SB 210 034 Figure 6 1 Circuit Diagram...

Page 28: ...tions 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 Workp...

Page 29: ...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 1...

Page 30: ...3 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 Cradl...

Page 31: ...trode 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 EXTENS...

Page 32: ...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 7 6 Poor Weld Bead Characteristics 1 Large Spatter Deposits 2 Rough Uneven Bead 3 Sli...

Page 33: ...sufficient 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 nozz...

Page 34: ...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 pain...

Page 35: ...pport 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 the...

Page 36: ...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 Positio...

Page 37: ...OM 1318 Page 33 Notes...

Page 38: ...lable unless listed Figure 8 1 Complete Assembly 2 3 4 5 6 Includes Items 7 12 1 13 14 7 8 9 10 11 12 15 17 16 18 19 20 21 22 23 24 25 27 26 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47...

Page 39: ...36 BAFFLE center 1 22 073 355 SPRING cprsn 1 23 111 998 PIN cotter 1 24 111 929 HUB spool 1 25 134 201 STAND OFF SUPPORT PC card 7 26 PC1 119 539 CIRCUIT CARD shutdown consisting of 1 27 F1 073 426 FU...

Page 40: ...PTER RING wire spool used w 1lb spool adapter 1 135 615 BUSHING nylon 2 010 287 WRENCH hex 1 62 010 909 NUT 375 16 1 63 010 910 WASHER flat 406 ID x 812 OD 2 Recommend Spare Parts When ordering a comp...

Page 41: ...169 738 NUT locking handle 1 7 194 524 NUT jam 1 8 180 433 CORD trigger assembly 1 9 079 974 O RING 500 ID x 103CS rbr 2 10 194 010 LINER monocoil 023 025 wire x 15ft consisting of 1 10 194 011 LINER...

Page 42: ......

Page 43: ...ting Torches Remote Controls Accessory Kits Replacement Parts No labor Spoolmate 185 Spoolmate 250 Canvas Covers Miller s True Blue Limited Warranty shall not apply to 1 Consumable components such as...

Page 44: ...complete and retain with your personal records Always provide Model Name and Serial Style Number Call 1 800 4 A Miller or see our website at www MillerWelds com to locate a DISTRIBUTOR or SERVICE AGEN...

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