Hobart
H-9B, 125 EZ
manual
Troubleshooting
Specification
Poor Weld Bead Characteristics
Install
Parts list
Electrical Diagram
Symbol Usage
Threading Welding Wire
Warranty
Typical Control Settings
Page 42
Notes
Page 41
Page 43
Image 42
Page 41
Page 43
Contents
Description
OM-923
Processes
File Flux Cored Fcaw
From Hobart to You
Table of Contents
Warranty
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
Principal Safety Standards
EMF Information
About Pacemakers
UNE Décharge Électrique peut entraîner la mort
LES Fumées ET LES GAZ peuvent être dangereux
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
’EMPLOI Excessif peut SUR
Risque D’INCENDIE OU D’EXPLO
LA Chute DE L’APPAREIL peut blesser
DES Organes Mobiles peuvent provoquer des blessures
Principales normes de sécurité
En ce qui concerne les stimulateurs cardiaques
− Specifications
Specifications
Duty Cycle And Overheating
Volt-Ampere Curves
Process/Polarity Table
− Installation
Installing Work Clamp
Polarity
Installing Wire Spool And Adjusting Hub Tension
Installing 4 in 102 mm Wire Spool
Do not move or operate unit where it could tip
Installing Contact Tip And Nozzle
Turn off welding power source
Threading Welding Wire
Input Power
− Operation
Controls
Operating The Gun
Overload Protection
− Maintenance &TROUBLESHOOTING
Routine Maintenance
Drive Motor Protection
Changing Drive Roll Or Wire Inlet Guide
Slide replacement wire guide into
Replacing Gun Contact Tip
Cleaning Gun Liner
End of wire at spool
Replacing Gun Liner
13/16 in 21 mm
Troubleshooting Table
Trouble Remedy
Does not run
− Electrical Diagram
Circuit Diagram
− Wire Welding Guidelines
Typical Fcaw Process Connections
Thickness to Amperage a
Typical Control Settings
Wire Size Amperage Range
Amperage
Holding And Positioning Welding Gun
Conditions That Affect Weld Bead Shape
Poor Weld Bead Characteristics
Good Weld Bead Characteristics
Gun Movement During Welding
Troubleshooting − Excessive Penetration
Troubleshooting − Excessive Spatter
Troubleshooting − Porosity
Possible Causes Corrective Actions
Troubleshooting − Lack Of Penetration
Troubleshooting − Incomplete Fusion
Troubleshooting − Burn-Through
Troubleshooting Guide For Semiautomatic Welding Equipment
Troubleshooting − Waviness Of Bead
Troubleshooting − Distortion
Wire does not feed
− Parts List
Main Assembly
Dia Part Description Quantity
225
Pkg
Wire Drive Assembly
209
Page
Service
Support
Assistance
Contact your Distributor for
Hobart Welding Products
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