Miller Electric 172 M-10 Gun Cleaning Or Repairing Drive Assembly, Replacing Gun Contact Tip

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5-4. Cleaning Or Repairing Drive Assembly

Tools Needed:

5/64 in

1

2

	5	7	3
	6

4

9

10

8

YTurn Off power before cleaning or repairing drive assembly.

1Wire Spool

2Nozzle

Cut welding wire off at nozzle. Re- tract wire onto spool and secure.

3Pressure Roll Arm

4Cotter Pin

5Pin

6Screw

7Bearing

Remove bearing. Install new bear- ing and secure with screw. Reinstall arm onto pin and secure with cotter pin.

8Screw

9Drive Roll

Remove drive 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 pulling it out of hole. Push new guide into hole from rear until it snaps in place.

Close door.

Ref. ST-801 987 / Ref. ST-801 872

5-5. Replacing Gun Contact Tip

Y Turn Off power before replacing contact tip.

1 Nozzle

2 Contact Tip

Cut off welding wire at contact tip.

Remove nozzle.

Remove contact tip and install new contact tip. Reinstall nozzle.

2

Tools Needed:

1

Ref. 802 399-A

OM-1318 Page 19

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Contents Description OM-1318187923FProcesses From Miller to You Table of Contents Page Electric Shock can kill Symbol UsageMarks a special safety message Arc Welding HazardsBuildup of GAS can injure or kill ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal can injure eyesPrincipal Safety Standards About Pacemakers EMF InformationLES Fumé ES ET LES GAZ peuvent ê tre dangereux Signification des symbolesConsignes DE Securite Lire Avant Utilisation UN Choc É Lectrique peut tuerLE Bruit peut affecter l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OULA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peutConsignes relatives aux stimulateurs cardiaques Principales normes de sé curitéInformation sur les champs é lectromagné tiques Volt-Ampere Curves SpecificationsSpecifications Definition Welding Power Source Duty Cycle And OverheatingWelding Gun Duty Cycle And Overheating OverheatingInstalling Welding Gun And Changing Polarity InstallationInstalling Work Clamp Flow Adjust Installing Gas Supply18 in 457 mm of space for airflow Electrical Service GuideSelecting a Location And Connecting Input Power Do not move or operate unit Where it could tipTools Needed 15/16 Installing Wire Spool And Adjusting Hub TensionStandard Wire Spool Standard Wire Reel Reinstall contact tip, and nozzle Assembly, and let go of wire14 ga 16 ga 18 ga 20 ga 22 ga Weld ParameterControls Wire Speed ControlVoltage Switch OperationShort Circuit Shutdown Maintenance &TROUBLESHOOTINGRoutine Maintenance Drive Motor Fuse F1Turn Off power before replacing contact tip Cleaning Or Repairing Drive AssemblyTurn Off power before cleaning or repairing drive assembly Wire Spool NozzleTo Reassemble Gun Cleaning Or Replacing Gun LinerDisconnect gun from unit Blow out gun casing Tools Needed Remove linerRemove handle locking nut Slide handle Replacing Switch And/Or Head TubeDisconnect gun first Motor continues to run Section Troubleshooting TableSecure power cord plug in receptacle see Section Trouble RemedyOM-1316 Electrical DiagramGun Workpiece Work Clamp Regulator Flowmeter Wire Feeder Power Source Shielding GasMIG Welding Gmaw Guidelines Typical MIG Process ConnectionsBased on 1/8 in material thickness Ipm = inch per minute Typical MIG Process Control SettingsWire Recommendation Wire Speed Select Wire SizeHolding And Positioning Welding Gun ShortNormalLong Conditions That Affect Weld Bead ShapePush PerpendicularDrag Short Normal LongGun Movement During Welding Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Possible Causes Corrective Actions Troubleshooting Excessive SpatterTroubleshooting Porosity Troubleshooting Excessive PenetrationTroubleshooting Burn-Through Troubleshooting Lack Of PenetrationTroubleshooting Incomplete Fusion Weld bead Troubleshooting Waviness Of BeadTroubleshooting Distortion Flat & Horizontal1 Fillet Common MIG Shielding GasesApplication OM-1318 Includes Items Parts ListDia Part Description Mkgs Quantity M-10 Gun Figure -2. M-10 Gun Page Support ServiceYour distributor also gives Miller Electric Mfg. Co Owner’s Record