Hobart Welding Products
OM-227 978B
manual
Work like a Pro
Troubleshooting
Specifications
Poor Weld Bead Characteristics
Install
Parts list
Electrical Diagram
Symbol Usage
Connecting Optional Spool Gun
Main Assembly
Safety
Page 50
Notes
Work like a Pro!
Pros weld and cut safely. Read the safety rules at the beginning of this manual.
Page 49
Page 51
Image 50
Page 49
Page 51
Contents
Description
OM-227 978B
Processes
2007−04
From Hobart to You
Table of Contents
Typical MIG Process Connections
− Parts List
− MIG Welding Gmaw Guidelines
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
Indique un message de sécurité particulier
UNE Décharge Électrique peut entraîner la mort
LES Fumées ET LES GAZ peuvent être dangereux
DES Pièces Chaudes peuvent provoquer des brûlures graves
LE Soudage peut provoquer un incendie ou une explosion
DES Particules Volantes peuvent blesser les yeux
LE Bruit peut endommager l’ouïe
’EMPLOI Excessif peut SUR
Risque D’INCENDIE OU D’EXPLO
LA Chute DE L’APPAREIL peut blesser
DES Organes Mobiles peuvent provoquer des blessures
Boulevard, Rexdale, Ontario, Canada M9W 1R3 téléphone
En ce qui concerne les stimulateurs cardiaques
Specifications
− Specifications
Symbols And Definitions
− Definitions
Amperes
Duty Cycle And Overheating
Volt-Ampere Curves
Output
Installing Work Clamp
− Installation
Installing Welding Gun
Process/Polarity Table
Changing Polarity
Installing Gas Supply
Selecting a Location And Connecting Input Power
Tools Needed
Electrical Service Guide
Installing Wire Spool And Adjusting Hub Tension
Installing Contact Tip And Nozzle
Connecting Optional Spool Gun
Appropriate setting
Threading Welding Wire
− Operation
Controls
Weld Parameter Chart For 230 VAC Model
227 949-B
Overload Protection Drive Motor Protection
− Maintenance &TROUBLESHOOTING
Routine Maintenance
Months
Replacing Gun Contact Tip
Changing Drive Roll Or Wire Inlet Guide
Turn Off power before replacing contact tip
030/.035 Groove Stamped 023/.025 Groove Stamped .030/.035
To Reassemble Gun
Cleaning Or Replacing Gun Liner
Disconnect gun from unit
Replacing Switch And/Or Head Tube
Troubleshooting Table
Trouble Remedy
OM-227 978
− Electrical Diagram
Circuit Diagram
227 951-B
− MIG Welding Gmaw Guidelines
Typical MIG Process Connections
Thickness to Amperage a
Typical MIG Process Control Settings
Wire Size Amperage Range
Amperage
Holding And Positioning Welding Gun
Perpendicular Drag
Conditions That Affect Weld Bead Shape
Push
Short Normal Long
Gun Movement During Welding
Poor Weld Bead Characteristics
Good Weld Bead Characteristics
Troubleshooting − Excessive Penetration
Troubleshooting − Excessive Spatter
Troubleshooting − Porosity
Possible Causes Corrective Actions
Troubleshooting − Burn-Through
Troubleshooting − Lack Of Penetration
Troubleshooting − Incomplete Fusion
Common MIG Shielding Gases
Troubleshooting − Waviness Of Bead
Troubleshooting − Distortion
Weld bead
Troubleshooting Guide For Semiautomatic Welding Equipment
OM-227 978
− Parts List
Main Assembly
Dia Part
Dia Part Mkgs Description Quantity
H-14 Gun
231
Consumables
Optional Drive Rolls
Options
Page
Work like a Pro
Assistance
Service
Support
Contact your Distributor for
Hobart Welding Products
Related pages
What happens if there’s no audio signal on the Samsung HW-D570?
Find audio signal solutions
Top
Page
Image
Contents