Miller Electric 172 M-10 Gun manual Maintenance &TROUBLESHOOTING, Routine Maintenance, Months

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SECTION 5 – MAINTENANCE &TROUBLESHOOTING

5-1. Routine Maintenance

Y Disconnect power before maintaining.

3 Months

Replace unreadable labels.

Repair or replace cracked weld cable.

Clean and tighten weld terminals.

6 Months

Blow out or vacuum inside.

during heavyOr service, clean

monthly.

Remove drive roll and apply light coat of oil or grease to drive motor shaft.

5-2. Drive Motor Fuse 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 necessary. To reinstall,

push fuse into fuse holder.

Reinstall wrapper, and latch door.

1 2

Tools Needed: 3/8 in

ST-801 867

5-3. 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 tip from workpiece. Check contact tip and replace if damaged. Turn On unit to continue operation.

OM-1318 Page 18

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Contents Processes OM-1318187923FDescription From Miller to You Table of Contents Page Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or killPrincipal Safety Standards EMF Information About PacemakersUN Choc É Lectrique peut tuer Signification des symbolesConsignes DE Securite Lire Avant Utilisation LES Fumé ES ET LES GAZ peuvent ê tre dangereuxDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un incendie ou une explosionLE Bruit peut affecter l’ouïe ’EMPLOI Excessif peut Risque D’INCENDIE OULA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresInformation sur les champs é lectromagné tiques Principales normes de sé curitéConsignes relatives aux stimulateurs cardiaques Specifications SpecificationsVolt-Ampere Curves Overheating Welding Power Source Duty Cycle And OverheatingWelding Gun Duty Cycle And Overheating DefinitionInstalling Work Clamp InstallationInstalling Welding Gun And Changing Polarity Installing Gas Supply Flow AdjustDo not move or operate unit Where it could tip Electrical Service GuideSelecting a Location And Connecting Input Power 18 in 457 mm of space for airflowStandard Wire Spool Standard Wire Reel Installing Wire Spool And Adjusting Hub TensionTools Needed 15/16 Assembly, and let go of wire Reinstall contact tip, and nozzleWeld Parameter 14 ga 16 ga 18 ga 20 ga 22 gaOperation Wire Speed ControlVoltage Switch ControlsDrive Motor Fuse F1 Maintenance &TROUBLESHOOTINGRoutine Maintenance Short Circuit ShutdownWire Spool Nozzle Cleaning Or Repairing Drive AssemblyTurn Off power before cleaning or repairing drive assembly Turn Off power before replacing contact tipBlow out gun casing Tools Needed Remove liner Cleaning Or Replacing Gun LinerDisconnect gun from unit To Reassemble GunDisconnect gun first Replacing Switch And/Or Head TubeRemove handle locking nut Slide handle Trouble Remedy Troubleshooting TableSecure power cord plug in receptacle see Section Motor continues to run SectionElectrical Diagram OM-1316Typical MIG Process Connections Regulator Flowmeter Wire Feeder Power Source Shielding GasMIG Welding Gmaw Guidelines Gun Workpiece Work ClampSelect Wire Size Typical MIG Process Control SettingsWire Recommendation Wire Speed Based on 1/8 in material thickness Ipm = inch per minuteHolding And Positioning Welding Gun Short Normal Long Conditions That Affect Weld Bead ShapePush PerpendicularDrag ShortNormalLongGood Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting Excessive Penetration Troubleshooting Excessive SpatterTroubleshooting Porosity Possible Causes Corrective ActionsTroubleshooting Incomplete Fusion Troubleshooting Lack Of PenetrationTroubleshooting Burn-Through Troubleshooting Distortion Troubleshooting Waviness Of BeadWeld bead Application Common MIG Shielding GasesFlat & Horizontal1 Fillet OM-1318 Parts List Includes ItemsDia Part Description Mkgs Quantity M-10 Gun Figure -2. M-10 Gun Page Your distributor also gives ServiceSupport Owner’s Record Miller Electric Mfg. Co