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OM-2224 Page 12

2-6.

Volt-Ampere Curves

193 117-115V / 193 117-230V

Volt-ampere curves show mini-
mum and maximum voltage and
amperage output capabilities of
welding power source. Curves of
other settings fall between curves
shown.

115 VAC INPUT

230 VAC INPUT

TIG and Stick Max.

Stick Min.

TIG Min.

TIG and Stick Max.

Stick Min.

TIG Min.

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Содержание Maxstar 140

Страница 1: ...Maxstar 140 With Auto Link Processes Description R TIG GTAW Welding Stick SMAW Welding Arc Welding Power Source OM 2224 191 802 February 1999 Visit our website at www Miller Welds com R...

Страница 2: ...ner 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 against potential hazards on the works...

Страница 3: ...uded with Your Unit TIG Stick 10 2 5 Duty Cycle And Overheating 11 2 6 Volt Ampere Curves 12 2 7 Selecting A Location 13 2 8 Typical Connection Methods 13 2 9 Connecting to Weld Output Receptacles 14...

Страница 4: ......

Страница 5: ...that cord plug is connected to a properly grounded receptacle outlet D When making input connections attach proper grounding conductor first double check connections D Frequently inspect input power...

Страница 6: ...elding 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 ligh...

Страница 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...

Страница 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...

Страница 9: ...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 appropri et...

Страница 10: ...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...

Страница 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...

Страница 12: ...s 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 te...

Страница 13: ...light weight portable welding power source containing the latest high perfor mance electronics that supplies DC weld output for use with the Stick Electrode and TIG welding processes This unit also h...

Страница 14: ...ntact your distributor 1 2 3 4 DP 00401 2 4 Included with Your Unit TIG Stick 1 Shoulder Strap Carrying Strap 2 12 ft 3 6 m Gas Hose Coupler And Inert Gas Regulator Flowmeter 3 10 ft 3 m Cable With Wo...

Страница 15: ...age or voltage or duty cycle before starting to weld again Y Exceeding duty cycle can damage unit and void warranty 110 A 35 Duty Cycle 115 V Input 140 A 25 Duty Cycle 230 V Input Overheating 0 15 A o...

Страница 16: ...V Volt ampere curves show mini mum and maximum voltage and amperage output capabilities of welding power source Curves of other settings fall between curves shown 115 VAC INPUT 230 VAC INPUT TIG and S...

Страница 17: ...latile liquids are present see NEC Article 511 or CEC Section 20 2 Airflow Distance Requirements 18 in 460 mm 18 in 460 mm ST 801 956 A DP 00333 193 623 1 Y Do not move or operate unit where it could...

Страница 18: ...ectrode Positive connect work cable con nector to negative receptacle and Electrode Holder cable con nector to positive receptacle To connect to receptacle align keyway insert connector and turn clock...

Страница 19: ...Receptacle The Auto Link circuitry in this unit automatically links the power source to the primary voltage being applied either 115 or 230 VAC An individual branch circuit capa ble of carrying 30 am...

Страница 20: ...into unit Mark location of switch terminals where black and white leads are connected and note location of ground lead Disconnect leads from ground terminal and switch 2 Black Switch Lead 3 Rear Panel...

Страница 21: ...ed down the output will come back ON Reduce the duty cycle or amper age before starting to weld again This light flashes if the input voltage primary is too low or if there is an input overcurrent fau...

Страница 22: ...til after the electrode is lifted from workpiece This al lows electrode to touch workpiece without overheating sticking or getting contaminated 1 1 2 Seconds Touch Do NOT Strike Like A Match 2 Ref S 1...

Страница 23: ...OM 2224 Page 19 4 2 Blowing Out Inside Of Unit Y Do not remove case when blowing out inside of unit To blow out unit direct airflow through front and back louvers as shown DP 00333...

Страница 24: ...d type of weld cable see your Distributer Clean and tighten all weld connections Check and reverse electrode polarity check and correct poor connections to workpiece Fan not operating unit is equipped...

Страница 25: ...OM 2224 Page 21 SECTION 5 ELECTRICAL DIAGRAM C 193 705 Figure 5 1 Circuit Diagram For Welding Power Source...

Страница 26: ...is clean be fore welding 2 Work Clamp 3 Electrode A small diameter electrode re quires less current than a large one Follow electrode manufactur er s instructions when setting weld amperage see Secti...

Страница 27: ...LLET ALL ALL EP EP EP EN EP EN EP EP EN EP EP 6010 6011 6013 7014 7018 7024 NI CL 308L EP ELECTRODE POSITIVE REVERSE POLARITY EN ELECTRODE NEGATIVE STRAIGHT POLARITY ELECTRODE AMPERAGE RANGE DIAMETER...

Страница 28: ...6 6 Poor Weld Bead Characteristics S 0053 A 1 Large Spatter Deposits 2 Rough Uneven Bead 3 Slight Crater During Welding 4 Bad Overlap 5 Poor Penetration 5 4 2 3 1 6 7 Good Weld Bead Characteristics S...

Страница 29: ...rrect Angle 6 9 Electrode Movement During Welding Normally a single stringer bead is satisfactory for most narrow groove weld joints however for wide groove weld joints or bridging across gaps a weave...

Страница 30: ...4 6 11 Lap Joint S 0063 S 0064 1 Electrode 2 Single Layer Fillet Weld Move electrode in circular motion 3 Multi Layer Fillet Weld Weld a second layer when a heavi er fillet is needed Remove slag be f...

Страница 31: ...Causes Corrective Actions Arc length too long Reduce arc length Damp electrode Use dry electrode Workpiece dirty Remove all grease oil moisture rust paint coatings slag and dirt from work surface befo...

Страница 32: ...dirt from work surface before welding 6 17 Troubleshooting Lack Of Penetration Lack Of Penetration shallow fusion between weld metal and base metal Lack of Penetration Good Penetration Possible Cause...

Страница 33: ...llel and does not cover joint formed by base metal Possible Causes Corrective Actions Unsteady hand Use two hands Practice technique 6 21 Troubleshooting Distortion Distortion contraction of weld meta...

Страница 34: ...15 to 35 cfh cubic feet per hour 7 to 16 5 lpm liters per minute Not Recommended The figures listed are intended as a guide and are a composite of recommendations from American Welding Society AWS and...

Страница 35: ...weld ing Do not use wheel for other jobs or tungsten can become contami nated causing lower weld quality 3 Ideal Tungsten Preparation Stable Arc 2 1 2 Times Electrode Diameter 1 2 1 Stable Arc 2 Flat...

Страница 36: ...ep flam mables away 1 Workpiece Make sure workpiece is clean before welding 2 Work Clamp Place as close to the weld as possible 3 Torch 4 Filler Rod If Applicable 5 Gas Cup 6 Tungsten Electrode Select...

Страница 37: ...02 B Tungsten Without Filler Rod Tungsten With Filler Rod Form pool Tilt torch Move torch to front of pool Repeat process 75 75 Welding direction Form pool Tilt torch Add filler metal Move torch to fr...

Страница 38: ...OM 2224 Page 34 8 3 Positioning Torch Tungsten For Various Weld Joints ST 162 003 S 0792 70 70 90 20 20 10 20 70 40 30 20 70 90 20 Butt Weld And Stringer Bead T Joint Lap Joint Corner Joint...

Страница 39: ...OM 2224 Page 35 Notes...

Страница 40: ...al number 1 5 V15 194 241 OVERTEMPERATURE LIGHT 1 6 194 217 BASE 1 7 194 220 SHOULDER STRAP 1 8 RC1 RC2 194 223 WELD OUTPUT RECEPTACLES 2 9 194 429 STICK TIG SWITCH 1 10 194 070 CABLE INPUT 115V 20A 1...

Страница 41: ...SFORMER main 1 5 194 230 BUS BAR transformer top 1 6 R1 194 228 SHUNT 1 7 194 231 BUS BAR negative output 1 8 C1 C2 194 233 CAPACITORS output filter 1 9 194 244 BUS BAR flexible positive output 2 10 R...

Страница 42: ...Item No Quantity Figure 9 3 Inside Right Components 1 PC1 PC2 194 225 CIRCUIT CARD PC1 main 1 2 194 236 FAN MOTOR BRACKET 1 Recommended Spare Parts To maintain the factory original performance of your...

Страница 43: ...as been improperly installed improperly operated or misused based upon industry standards or equipment which has not had reasonable and necessary maintenance or equipment which has been used for opera...

Страница 44: ...ss City State Zip Please complete and retain with your personal records Always provide Model Name and Serial Style Number Contact your Distributor for To locate distributor nearest you call 1 800 4 A...

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