Miller Electric 625 manual Maintenance Procedures for Stud Gun, When is Maintenance Required?

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8-3. Maintenance Procedures for Stud Gun

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When is Maintenance Required?

Maintenance requirements will vary with environment and usage. Dirty work areas or high volume stud welding will require more frequent main- tenance.

There are three primary reasons for maintenance:

Dirt - Dirt can enter the lifting mechanism and cause erratic lift and plunge operations. Typically , cleaning is all that is required.

Wear - Components do wear out over time. Typically, items such as plastic bearings or cables wear out and need to be replaced.

Improper Use - Components can arc out by inadvertently placing them against grounded materials during a weld sequence. Also, by us- ing the gun as a hammer to test welds will damage parts and require maintenance.

Maintenance Steps

Proper Maintenance Procedures:

Disassemble the gun.

Inspect all parts for wear or damage.

Replace worn or damaged components.

Clean all components.

Reassemble components.

Adjust settings and test.

Disassembly / Assembly Procedures:

YTo prevent accidental activation disconnect the gun from the power source before adjusting or servicing the gun.

.Remove all accessories from gun before servicing.

.Items referenced ( ) will correspond with list items.

1Legs: Loosen set screws (23) and pull legs (not shown) straight out. Inspect legs for damage and straightness, replace if necessary.

2Chuck (Not Shown): Insert chuck key into chuck adapter and turn key 180 degrees. Inspect chuck for damage. If taper on chuck appear worn out replace chuck.

3Dust Bellows (3): Remove dust bellows by sliding over end of chuck adapter. The bellows prevent contaminates from entering the internal mechanisms of the gun. If bellows has holes or is torn, replace.

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OM-216 244 Page 28

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Contents OM-216 244J ProcessDescription File Stud Welding SWFrom Miller to You Table of Contents Page Symbol Usage Marks a special safety messageArc Welding Hazards Electric Shock can killARC Rays can burn eyes and skin Welding can cause fire or explosionFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux LE Soudage peut provoquer un Incendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesRisque D’INCENDIE OU D’EXPLO LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaquesDuty Cycle And Overheating Specifications− Introduction − Installation Power Source Dimensions And WeightSelecting a Location LocationElectrical Service Guide Hz Three PhaseInput Voltage Min Grounding Conductor Size In AWGTurn off power before connecting to weld output terminals Weld Output Receptacles And Selecting Cable SizesARC Welding can cause Electromagnetic Interference Output ReceptaclesConnecting 3-Phase Input Power = GND/PE Earth Ground Tools NeededCircuit Breaker Pin Receptacle InformationRack Mounting Socket InformationChuck Removal − Installation Stud GUNChuck Installation Foot and Leg Setup Ferrule Grip / Spark Shield Removal and InstallationFoot Installation Leg InstallationConnecting Stud Gun and Work Clamp to Power Source Connecting Weld Cable and Work Ground CableConnecting Control Cable Foot AlignmentStud Welding Plunge AdjustmentPlunge Adjusting Stud Lift LIft Adjustment TableAdjusting Lift Measuring LIft− Operation Power Source Front Panel ControlsMaterial Thickness Reference Chart Select TIME/AMP Adjustment Time/Amperage ControlXxxx ReadyStud Gun Tool Functions Stud Welding Procedures− Operation Stud GUN Recommended Settings Welding SequenceBlowing Out Inside Of Unit − Maintenance & TroubleshootingDo not remove case when blowing out inside of unit OM-216 244 Maintenance Procedures for Stud Gun When is Maintenance Required?Maintenance Steps Disassembly / Assembly ProceduresTools Needed OM-216 244 Troubleshooting Help Aids Troubleshooting Power SourceFree play Troubleshooting Stud GunBut no weld OM-216 244 − Electrical Diagrams Circuit Diagram For 460/575 Volt Models− Parts List for Power Source Parts AssemblyDia Part Description Quantity Mkgs 207 SOCKET/WRENCH Selection Table Standard Metric − Parts List for Stud GUN 217 Plunge Dampener Soft Standard W/Dampener Model − Options and Accessories Plunge DampenerTable For Foot and Legs Table For Chucks and GripsWork like a Pro Material Thickness Gauge Service SupportOwner’s Record Miller Electric Mfg. Co