Hobart Welding Products
OM-227 978B
manual
Processes, Description, 2007−04
Troubleshooting
Specs
Poor Weld Bead Characteristics
Install
Parts list
Electrical Diagram
Symbol Usage
Connecting Optional Spool Gun
Main Assembly
Safety
Page 1
OM-227
978B
2007−04
Processes
MIG (GMAW) Welding
Flux Cored (FCAW) Welding
Description
Arc Welding Power Source And
Wire Feeder
Handler
R
210
Page 1
Page 2
Image 1
Page 1
Page 2
Contents
Processes
OM-227 978B
Description
2007−04
From Hobart to You
Table of Contents
− MIG Welding Gmaw Guidelines
− Parts List
Typical MIG Process Connections
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
EMF Information
Principal Safety Standards
About Pacemakers
LES Fumées ET LES GAZ peuvent être dangereux
UNE Décharge Électrique peut entraîner la mort
Indique un message de sécurité particulier
DES Particules Volantes peuvent blesser les yeux
LE Soudage peut provoquer un incendie ou une explosion
DES Pièces Chaudes peuvent provoquer des brûlures graves
LE Bruit peut endommager l’ouïe
LA Chute DE L’APPAREIL peut blesser
Risque D’INCENDIE OU D’EXPLO
’EMPLOI Excessif peut SUR
DES Organes Mobiles peuvent provoquer des blessures
En ce qui concerne les stimulateurs cardiaques
Boulevard, Rexdale, Ontario, Canada M9W 1R3 téléphone
Symbols And Definitions
− Specifications
Specifications
− Definitions
Volt-Ampere Curves
Duty Cycle And Overheating
Amperes
Output
Installing Welding Gun
− Installation
Installing Work Clamp
Changing Polarity
Process/Polarity Table
Installing Gas Supply
Selecting a Location And Connecting Input Power
Installing Wire Spool And Adjusting Hub Tension
Electrical Service Guide
Tools Needed
Installing Contact Tip And Nozzle
Appropriate setting
Connecting Optional Spool Gun
Threading Welding Wire
Controls
− Operation
Weld Parameter Chart For 230 VAC Model
227 949-B
Routine Maintenance
− Maintenance &TROUBLESHOOTING
Overload Protection Drive Motor Protection
Months
Turn Off power before replacing contact tip
Changing Drive Roll Or Wire Inlet Guide
Replacing Gun Contact Tip
030/.035 Groove Stamped 023/.025 Groove Stamped .030/.035
Disconnect gun from unit
Cleaning Or Replacing Gun Liner
To Reassemble Gun
Replacing Switch And/Or Head Tube
Trouble Remedy
Troubleshooting Table
OM-227 978
Circuit Diagram
− Electrical Diagram
227 951-B
Typical MIG Process Connections
− MIG Welding Gmaw Guidelines
Wire Size Amperage Range
Typical MIG Process Control Settings
Thickness to Amperage a
Amperage
Holding And Positioning Welding Gun
Push
Conditions That Affect Weld Bead Shape
Perpendicular Drag
Short Normal Long
Good Weld Bead Characteristics
Poor Weld Bead Characteristics
Gun Movement During Welding
Troubleshooting − Porosity
Troubleshooting − Excessive Spatter
Troubleshooting − Excessive Penetration
Possible Causes Corrective Actions
Troubleshooting − Incomplete Fusion
Troubleshooting − Lack Of Penetration
Troubleshooting − Burn-Through
Troubleshooting − Distortion
Troubleshooting − Waviness Of Bead
Common MIG Shielding Gases
Weld bead
Troubleshooting Guide For Semiautomatic Welding Equipment
OM-227 978
Main Assembly
− Parts List
Dia Part
Dia Part Mkgs Description Quantity
231
H-14 Gun
Options
Optional Drive Rolls
Consumables
Page
Work like a Pro
Support
Service
Assistance
Hobart Welding Products
Contact your Distributor for
Related pages
What should I do if I encounter a short circuit during
AZ speaker connections
?
Top
Page
Image
Contents