Hobart Welding Products
OM-925 217 694A Electrical Diagram, Circuit Diagram For 115 VAC Model
Troubleshooting
Specification
Poor Weld Bead Characteristics
Install
Parts list
Electrical Diagram
Symbol Usage
Threading Welding Wire
Safety
Service
Page 33
SECTION 7 − ELECTRICAL DIAGRAM
217
621-A
Figure
7-1.
Circuit Diagram For 115 VAC Model
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OM-925
Page 29
Page 32
Page 34
Image 33
Page 32
Page 34
Contents
OM-925
Processes
Description
From Hobart to You
Table of Contents
Options and Accessories Warranty
Marks a special safety message
Symbol Usage
Arc Welding Hazards
Electric Shock can kill
Welding can cause fire or explosion
ARC Rays can burn eyes and skin
Flying Metal can injure eyes
Buildup of GAS can injure or kill
California Proposition 65 Warnings
Principal Safety Standards
EMF Information
About Pacemakers
− Consignes DE Sécurité − À Lire Avant Utilisation
Identifie un message de sécurité particulier
LES Particules Projetées peu- vent blesser les yeux
LE Soudage peut causer un incen- die ou une explosion
LES Pièces Chaudes peuvent cau- ser des brûlures graves
LE Bruit peut affecter l’ouïe
LA Chute DE L’APPAREIL peut blesser
Risque D’INCENDIE OU D’EXPLO
’EMPLOI Excessif peut Faire
LES Pièces Mobiles peuvent cau- ser des blessures
Principales normes de sécurité
Information sur les champs électromagnétiques
Consignes relatives aux stimulateurs cardiaques
− Specifications
Specifications
VAC Model
Amperes
Duty Cycle And Overheating
Output Duty Cycle %
VAC Model Output Amperes
Voltage
Volt-Ampere Curves
Installing Welding Gun Installing Work Clamp
− Installation
Changing Polarity
Process/Polarity Table
Installing Gas Supply
Is required
= GND/PE
Do not move or operate unit where it could tip
Installing Wire Spool And Adjusting Hub Tension
Electrical Service Guide For 230 VAC Model
Hold wire tightly to keep it From unraveling
Threading Welding Wire
Controls
− Operation
Steel
Weld Parameter Chart For 115 VAC Model
Inch
20 ga 18 ga 16 ga 11 ga
Weld Parameter Chart For 230 VAC Model
18 ga 16 ga 11 ga 048 060 Inch
Wire Welding Package
Routine Maintenance
− Maintenance &TROUBLESHOOTING
Disconnect power before maintaining
Overload Protection Drive Motor Protection
Changing Drive Roll Or Wire Inlet Guide
Turn Off power before replacing contact tip
Replacing Gun Contact Tip
Cleaning Or Replacing Gun Liner
Disconnect gun from unit
To Reassemble Gun
Replacing Switch And/Or Head Tube
Trouble Remedy
Troubleshooting Table
Circuit Diagram For 115 VAC Model
− Electrical Diagram
Circuit Diagram For 230 VAC Model
Typical MIG Process Connections
− MIG Welding Gmaw Guidelines
Wire Size Amperage Range
Typical MIG Process Control Settings
Thickness to Amperage a
Select Voltage
Holding And Positioning Welding Gun
Conditions That Affect Weld Bead Shape
Poor Weld Bead Characteristics
Good Weld Bead Characteristics
Gun Movement During Welding
Troubleshooting − Porosity
Troubleshooting − Excessive Spatter
Troubleshooting − Excessive Penetration
Possible Causes Corrective Actions
Troubleshooting − Lack Of Penetration
Troubleshooting − Incomplete Fusion
Troubleshooting − Burn-Through
Troubleshooting − Distortion
Troubleshooting − Waviness Of Bead
Troubleshooting Guide For Semiautomatic Welding Equipment
Common MIG Shielding Gases
Application
Welding arc not stable Wire slipping in drive rolls
Return To Table Of Contents
Main Assembly
− Parts List
Dia Part
H-10 Gun
Optional Drive Rolls
Options
195
Page
Support
Service
Hobart Welding Products
Contact your Distributor for
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