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Welding System
Miller Electric
HF-251D-1, HF-251-2
manual
Models:
HF-251-2
HF-251D-1
1
38
40
40
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40 pages
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Troubleshooting
Specifications
Install
Parts list
Electrical Diagrams
Postflow Timer
Symbol Usage
Connecting Input Power
Maintenance
Complete Assembly Part 1
Page 38
Image 38
Page 37
Page 39
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Page 37
Page 39
Contents
Description
OM-611
Processes
From Miller to You
Table of Contents
Page
Arc Welding Hazards
Symbol Usage
Marks a special safety message
Electric Shock can kill
Flying Metal can injure eyes
ARC Rays can burn eyes and skin
Welding can cause fire or explosion
Buildup of GAS can injure or kill
California Proposition 65 Warnings
About Pacemakers
Principal Safety Standards
EMF Information
Identifie un message de sécurité particulier
− Consignes DE Sécurité − À Lire Avant Utilisation
LES Pièces Chaudes peuvent cau- ser des brûlures graves
LE Soudage peut causer un incen- die ou une explosion
LES Particules Projetées peu- vent blesser les yeux
LE Bruit peut affecter l’ouïe
’EMPLOI Excessif peut Faire
Risque D’INCENDIE OU D’EXPLO
LA Chute DE L’APPAREIL peut blesser
LES Pièces Mobiles peuvent cau- ser des blessures
Consignes relatives aux stimulateurs cardiaques
Principales normes de sécurité
Information sur les champs électromagnétiques
Typical Process Connections
− Installation
Specifications
Installing Gas Supply
IN-GAS-OUT
Power Source Plug Information And Connections
Amperage Control
Socket
Operator Control Receptacle Information And Connections
Operator Control Receptacle Socket Information
Connecting To Weld Output Terminals
Electrode Electrode OUT Work INPUT/OUTPUT
Connecting Input Power
− Operation
High Frequency Switch
High Frequency Selector Switch
Controls
High Frequency Intensity Control
Power Switch And Pilot Light
Postflow Timer
Shielding Gas
− Maintenance & Troubleshooting
Routine Maintenance Months
Adjusting Spark Gaps
Troubleshooting
Trouble Remedy
− Electrical Diagrams
Circuit Diagram For 115 Volts Model
Circuit Diagram For 230 Volts Model
Welding Processes Requiring High Frequency
Incorrect Installation
− High Frequency
Weld Zone
Metal Building Requirements
Correct Installation
Metal Building
Amperage Range Gas Type Polarity
AC − Argon AC − Argon −
Positioning The Torch
− Guidelines for TIG Welding Gtaw
Preparing Tungsten Electrode For Welding
Preparing Tungsten For Conventional AC Welding
Tungsten Without Filler Rod
Torch Movement During Welding
Positioning Torch Tungsten For Various Weld Joints
Tungsten With Filler Rod
Return To Table Of Contents
− Parts List
Complete Assembly Part 1 of 2 115V Model
Complete Assembly Part 1
Complete Assembly Part 2 of 2 115V Model
Complete Assembly Part 2
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Owner’s Record
Miller Electric Mfg. Co
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