Miller Electric XR Control manual Overload Protection, Turn Off Wire, Engine Welding

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7-11. Overload Protection

 

Y Turn Off

wire

feeder and

 

 

welding power source. Stop

 

 

engine

on

welding

 

 

generator.

 

 

 

If fuse opens, unit shuts down. To

3

replace fuse, proceed as follows:

1

Fuse Holder Cover

 

 

2 Fuse F1 (See Parts List)

 

3

Circuit Breaker CB1

1

If CB1 opens, the gun drive motor,

 

gas valve, and contactor will not

 

operate when trigger is pulled. The

 

gun drive motor operates in the Jog

 

mode with CB1 open.

 

2

Check for blocked gun liner.

 

Check for jammed wire, binding

 

drive gear or misaligned drive rolls

 

in feeder. Correct problem.

 

Allow cooling period and manually

 

reset breaker. Close and latch door.

Ref. 801 577 / Ref. 800 185-A

7-12. Water Flow Switch (Optional For Water-Cooled Models)

The water flow switch protects the gun from overheating. If coolant flow rate drops below 1 qt/min, the water flow switch opens and stops the welding wire from feeding. See Section 7-13for remedies to this trouble.

OM-1594 Page 39

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Contents OM-1594181 715Z ProcessesDescription From Miller to You Table of Contents Options and Accessories Warranty Standards DirectivesPage Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings Principal Safety Standards EMF InformationAbout Pacemakers UNE Décharge Électrique peut entraîner la mort LES Fumées ET LES GAZ peuvent être dangereuxIndique un message de sécurité particulier Incendie ou une explosion LE Soudage peut provoquer unDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLO’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresEn ce qui concerne les stimulateurs cardiaques Principales normes de sécurité+ + Rating Label For CE Products Specifications Symbols And DefinitionsPower DiameterDuty Cycle And Overheating Above 50 psi 345 kPa Do not use gas pressureAir-Cooled Feeder Connections Air-Cooled Gun Connections Water-Cooled Feeder Connections Water-Cooled Gun Connections Pin Plug Information Installing voltage sensing leadMeter Circuit Board Settings Voltage Sensing FunctionDigital Meter Display Removing Top Cover Of Pistol Grip Gun Opening Top Cover Of XR-Edge GunInstalling Wire Spool It from unraveling Threading Welding Wire Through FeederFor XR-Edge Gun Threading Welding Wire Through GunFor Pistol-Grip Gun For Both GunsAdjusting Wire Feed Starting Speed Setting Switches For Preflow And Postflow Trigger hold actuation time range is from 0 to 4 seconds Adjusting Trigger Hold Actuation TimeControls − OperationInternal Controls Gun wire feed speedGun Controls Shielding GasCoolant Supply For Water-Cooled Models Only Sequence Of Gas Metal Arc Welding Gmaw − Continuous Or Spot Disconnect powerTo 6 Weeks MonthsWire size Feeder Drive Assembly MaintenancePost Pressure Roll w/Bearing Gun Drive Assembly Maintenance For An XR-Edge GunReplacing Head Tube Liner In XR-Edge Guns 030-1/16 wire sizeReplacing The Liner Turn Off welding power source and wire feederChanging Gun Contact Tip Replacing Or Cleaning Gun Drive Roll In Pistol-Grip GunsReplacing Head Tube Liner In Pistol-Grip Guns Removing Diffuser In Air And Water-Cooled Pistol-Grip Guns Replacing Hub Assembly Turn Off Wire Water Flow Switch Optional For Water-Cooled ModelsOverload Protection Engine WeldingDisconnect power before troubleshooting TroubleshootingTrouble Remedy Shielding gas does not flowOM-1594 − Electrical Diagrams 218 814-B Circuit Diagram For XR Edge Gun OM-1594 − Parts List MP1 Motor & Wire Drive Motor & Wire Drive -1Item Panel, Front w/Components Water-Cooled Model Illustrated Panel, Front w/Components -1Item Exploded View Of XR-Edge Gun Part Description Quantity Part Description Barrel Assembly Of XR-Edge Gun Exploded View Of Pistol-Grip Gun 214 166 Barrel Assembly Of Pistol-Grip Gun XR-A Spoolmatic Head Tube NumberXR-A Edge Head Tube XR-W Edge Head TubeConsumables Flowchart Nozzles Heavy Duty FasTiptContact TipsExtra Heavy Duty FasTiptContact Tips Value Multi−Turn Contact Tips Consumables Flowchart Tapered FasTipt Contact TipsGas Diffusers InsulatorsStart Your Professional Welding Career Now Page Support ServiceMiller Electric Mfg. Co Owner’s Record