Miller Electric Renegade 180 Gun Routine Maintenance, Welding Power Source Overload Protection

Page 36

. Complete Parts List available at www. MillerWelds.com

8-2. Gun Routine Maintenance

Stop engine and dis- connect gun before maintaining.

n = Check

Z = Change

~ = Clean

l = Replace

Every

Spool

Of Wire

~ Gun Casing

~ Nozzle, n Contact Tip

Every 3

Months

Reference

Section 8-7

Section 8-7

lCracked Parts

lCracked Parts

lCracked Parts

lCracked Parts

8-3. Welding Power Source Overload Protection

	1 Supplementary Protector CB2
1	CB2 protects unit from overload. If
	the unit is using 230 volts ac input

power and CB2 opens, unit shuts down.

Reset supplementary protector.

.Shown with optional cylinder rack

804 476-C

8-4. Drive Motor Protection And Tip Saver/Short Circuit Protection

A. Drive Motor Protection

Drive motor protection circuit protects drive motor from overload. If drive motor becomes inoperative, release gun trigger and wait until protection circuit resets allowing drive motor to feed wire again.

B. Tip Saver/Short Circuit Protection

The tip saver/short circuit protection extends contact tip life and protects internal components from damage. If contact tip is shorted to workpiece, the unit shuts down the welding output. To resume operation, release gun trigger to reset unit. If the contact tip has stuck to the workpiece, 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-228 042 Page 32

Image 36

Contents OM-228 042B ProcessesDescription File Engine DriveFrom Miller to You Table of Contents − Maintenance 10-1Symbol Usage Arc Welding HazardsElectric Shock can kill HOT Parts can cause severe burnsFumes and Gases can be hazardous Buildup of GAS can injure or killARC Rays can burn eyes and skin Welding can cause fire or explosionEngine Hazards Compressed Air HazardsWelding Wire can cause injury HOT Parts can cause burns and injuryFire or Explosion hazard Falling Unit can cause injuryPrincipal Safety Standards California Proposition 65 WarningsEMF Information Radiation can cause interferenceSignification des symboles − Consignes DE Sécurité − Lire Avant UtilisationUN Choc Électrique peut tuer Indique des instructions spécifiquesDES Pièces Chaudes peuvent provoquer des brûlures graves LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un in cendie ou une explosion LE Bruit peut affecter l’ouïe ’EXPLOSION DE LA Batterie peuDES Organes Mobiles peuvent pro voquer des blessures LA Chaleur DU Moteur peut pro- voquer un incendie ’AIR Comprimé peut provoquer des blessuresRisque D’INCENDIE OU D’EXPLO- Sion LE Surchauffement peut endom- mager le moteur électrique DES Organes Mobiles peuvent provoquer des blessuresLES Fils DE Soudage peuvent provoquer des blessures ’EMPLOI Excessif peutProposition californienne 65 Avertissements Principales normes de sécuritéInformation EMF − Specifications Symbol DefinitionsWeld, Power, And Engine Specifications − DefinitionsGun Specifications Dimensions, Weights, And Operating AnglesOptional Lifting Eye Weight Rating Volt-Ampere CurvesPower Source Duty Cycle Fuel ConsumptionGenerator Power Curve Gun Duty Cycle And OverheatingVolts AC Amperes− Installation Installing Welding GeneratorMovement Airflow ClearanceGrounding Generator When Supplying Building Systems Use ground device as stated in electrical codesConnecting The Battery Electric Start Models Only Engine Prestart Checks+ − OilInstalling Welding Gun Work Cable Routing Inside UnitWeld Process/Polarity Table Changing Weld PolarityConnecting Single−Phase, 230 Volt AC Utility Input Power Shown with optional cylinder rackThis unit can provide weld out Electrical Service Guide Installing Wire Spool And Adjusting Hub TensionWhen a slight force is needed to turn spool, tension is set AdapterWeld Position Stamped Stamped .030/.035 Tighten Pressure Indicator Scale Threading The Welding GunTools Needed 150 mm 030/.035 Groove Wood − Operating the Welding Generator Controls See SectionDescription Of Controls See Section To StartTo Stop Weld Parameter Chart Stainless Steel And 100% CO2 Weld Parameters 20 ga 18 ga 16 ga 14 gaGenerator Power Panel Receptacles Generator power decreases as weld current increases− Operating Auxiliary Equipment − Maintenance Power Source Routine MaintenanceGun Routine Maintenance Welding Power Source Overload ProtectionDrive Motor Protection Tip Saver/Short Circuit ProtectionChanging Drive Roll Or Wire Inlet Guide Turn Off power before replacing contact tipReplacing Gun Contact Tip Turn off welding power source/wire feeder Maintaining GunReplacing Switch And/Or Head Tube Tools Needed 19 mmServicing Air Cleaner Precleaner Paper ElementDo not wash paper element or clean with compressed air Standard Model Shown Stop engineAdjusting Engine Speed Stop engine. Close fuel valve− Troubleshooting TroubleshootingGenerator Power WeldingWire Feeder EngineDoes not run − Parts List Recommended Spare PartsRecommended Spare Parts − Electrical Diagrams OM-217 454Regulator Flowmeter Wire Feeder Power Source Shielding Gas − MIG Welding Gmaw GuidelinesTypical MIG Process Connections Gun Work Clamp WorkpieceTypical MIG Process Control Settings These settings are guidelines only. MaterialWire Suggested Wire Speed Material thickness determines weld parametersNozzle, and tip of wire is posi Holding And Positioning Welding GunTioned correctly on seam Groove WeldsConditions That Affect Weld Bead Shape Gun Angles And Weld Bead ProfilesElectrode Extensions Stickout Fillet Weld Electrode Extension StickoutPoor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Excessive Spatter Troubleshooting − PorosityPossible Causes Corrective Actions Troubleshooting − Excessive Penetration 12-11 Troubleshooting − Lack Of PenetrationTroubleshooting − Incomplete Fusion 12-13 Troubleshooting − Burn-Through Troubleshooting − Waviness Of BeadTroubleshooting − Distortion Common MIG Shielding Gases ApplicationFlat & Horizontal1 Fillet − Generator Power Guidelines Selecting EquipmentGrounding Generator To Truck Or Trailer Frame Grounding When Supplying Building Systems How Much Power Does Equipment Require?Approximate Power Requirements For Industrial Motors Approximate Power Requirements For Farm/Home EquipmentIndustrial Motors Rating Starting Watts Running Watts Farm/Home Equipment Rating Starting Watts Running WattsApproximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running WattsPower Required To Start Motor How Much Power Can Generator Supply?Single-Phase Induction Motor Starting Requirements KVA/HP x HP x 1000 / Volts = Starting AmperageTypical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible Cord Lengths for 120 Volt LoadsCurrent Load Watts Amperes Cord Lengths for 240 Volt LoadsSOCKET/WRENCH Selection Table Standard Metric Service Your distributor also givesSupport To locate a Distributor or Service Agency visit Miller Electric Mfg. CoFor assistance in filing or settling claims, contact Your distributor and/or equipment manufacturer’s