Miller Electric
XR W, XR A
manual
Circuit Diagram For Gun
Troubleshooting
Specifications
Install
Parts list
Electrical Diagrams
Symbol Usage
Wire Feeder Trouble
Maintenance
Pins a & B of PLG5
Replacing Hub Assembly
Page 44
195
712-B
Figure
7-2.
Circuit Diagram For Gun
OM-1581
Page 40
Page 43
Page 45
Image 44
Page 43
Page 45
Contents
OM-1581137 532Y
Processes
Description
File MIG Gmaw
From Miller to You
Table of Contents
Troubleshooting
Spot Controls Optional
Symbol Usage
Marks a special safety message
Arc Welding Hazards
Electric Shock can kill
ARC Rays can burn eyes and skin
Welding can cause fire or explosion
Flying Metal can injure eyes
Buildup of GAS can injure or kill
California Proposition 65 Warnings
About Pacemakers
Principal Safety Standards
EMF Information
Indique un message de sécurité particulier
UNE Décharge Électrique peut entraîner la mort
LES Fumées ET LES GAZ peuvent être dangereux
LE Soudage peut provoquer un
Incendie ou une explosion
DES Particules Volantes peuvent blesser les yeux
DES Pièces Chaudes peuvent provoquer des brûlures graves
Risque D’INCENDIE OU D’EXPLO
LA Chute DE L’APPAREIL peut blesser
’EMPLOI Excessif peut SUR
DES Organes Mobiles peuvent provoquer des blessures
Principales normes de sécurité
En ce qui concerne les stimulateurs cardiaques
− Specifications
Wire Feeder Specifications
Gun Specifications
Duty Cycle And Overheating
− Installation
Constant Voltage CV Weld- ing Power Source Plug
Push door back into original posi- tion to close
Removing Top Cover Of Pistol Grip Gun
Top Cover Triangular Boss
Air-Cooled Gun Connections
Water-Cooled Gun Connections
Air-Cooled Feeder Connections
Regulator
Water-Cooled Feeder Connections
Top View Rear Panel
Return Fitting On
Supply Fitting On Regulator
Reinstall right side panel
Voltage Sensing Lead Connections
11 VAC/Contactor Control Plug Information
Pins a & B of PLG5
Or -4, install 5-pin or
Receptacle on welding power
Source, and install plug onto
Installing Wire Spool
Threading Welding Wire Through Feeder
Threading Welding Wire Through Gun
Coolant Guidelines
Adjusting Wire Feed Starting Speed
Safety Equipment
− Operation
Front Panel Controls Of Feeder Air-Cooled Model Shown
Work And Voltage Sensing Cable Clamps
Run-In Speed Control
Jog Switch
Voltage/Wire Speed Switch And Meter Optional
Remote Voltage Control Optional
Power Switch
Spot Controls Optional
Flowmeter Optional
Internal Controls
Gun Controls
Shielding Gas
Coolant Supply For Water-Cooled Models Only
Sequence Of Gas Metal Arc Welding Gmaw − Continuous Or Spot
− Maintenance & Troubleshooting
Routine Maintenance
Turn Off all power before maintaining
Months
Changing Or Cleaning Gun Drive Roll
Changing Feeder Drive Roll And Wire Inlet Guide
Close pressure roll assembly. Close and latch door
Changing Gun Contact Tip
Removing Diffuser In Air And Water-Cooled Pistol-Grip Guns
Turn Off welding power source and wire feeder
Replacing The Liner
Split End
Drive Roll Collet Nut
Replacing Hub Assembly
Close gun pressure roll assembly and reinstall gun cover
Overload Protection
Adjusting Hub Tension
Water Flow Switch Optional For Water-Cooled Models
Troubleshooting
Wire Feeder Trouble
Gun Trouble
Reinstall current pick-up tab if applicable see Section
Filter, and clean fittings see Section
− Electrical Diagrams
Circuit Diagram For Wire Feeder
Circuit Diagram For Gun
OM-1581
45 46
− Parts List
12 13 9 10 17 18 17
Dia Part Description Quantity Mkgs
CB1
Motor & Wire Drive -1 Item
Includes Items
Panel, Front w/Components Water-Cooled Model Illustrated
Panel, Front w/Components -1 Item
Includes
38Fig
Items 24
PLG20
136
Head Tube Assembly Of Pistol-Grip Gun
− Parts List Including Consumables
Number
Tapered FasTipt Contact Tips
Heavy Duty FasTiptContact Tips
Extra Heavy Duty FasTiptContact Tips
Gas Diffusers
Insulators
Barrel Assemblies
Head Tube Assemblies
Support
Service
Your distributor also gives
To locate a Distributor or Service Agency visit
Miller Electric Mfg. Co
For assistance in filing or settling claims, contact
Your distributor and/or equipment manufacturer’s
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