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Hobart Welding Products
140
manual
217 618-A
Models:
140
1
27
48
48
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Troubleshooting
Specification
Poor Weld Bead Characteristics
Install
Weld Parameter Chart
Symbol Usage
Pressure Indicator Scale
Threading Welding Wire
Warranty
Maintenance
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A complete Parts List is available at www.HobartWelders.com
217
618-A
OM-925
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Contents
OM-925
Processes
Description
From Hobart to You
Table of Contents
− ACCESSORIES/CONSUMABLES
− MIG Welding Gmaw Guidelines
Typical MIG Process Connections
Electric Shock can kill
Symbol Usage
Marks a special safety message
Arc Welding Hazards
Buildup of GAS can injure or kill
ARC Rays can burn eyes and skin
Welding can cause fire or explosion
Flying Metal can injure eyes
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
LE Bruit peut endommager l’ouïe
LE Soudage peut provoquer un incendie ou une explosion
DES Particules Volantes peuvent blesser les yeux
DES Pièces Chaudes peuvent provoquer des brûlures graves
DES Organes Mobiles peuvent provoquer des blessures
Risque D’INCENDIE OU D’EXPLO
LA Chute DE L’APPAREIL peut blesser
’EMPLOI Excessif peut SUR
En ce qui concerne les stimulateurs cardiaques
Boulevard, Rexdale, Ontario, Canada M9W 1R3 téléphone
− Definitions
− Specifications
Symbols And Definitions
Specifications
Exceeding duty cycle can
Warranty
Duty Cycle And Overheating
Output Duty Cycle %
10.0 100 110 120 130 140 150 160
Volt-Ampere Curves
Voltage
15.0
Drive assembly. Tighten thumbscrew
− Installation
Installing Welding Gun
Installing Work Clamp
Changing Polarity
Process/Polarity Table
CO2 gas regulator/flowmeter
Installing Gas Supply
Do not move or operate unit Where it could tip
Selecting a Location And Connecting Input Power
Align locking hole in spool with locking pin on spool hub
Installing Wire Spool And Adjusting Hub Tension
Installing Contact Tip And Nozzle
Turn off welding power source
Use with solid or flux cored wire
Lay gun cable out straight
Threading Welding Wire
Tighten
Pressure Indicator Scale
Source or -2. Do not switch under load
− Operation
Controls
Material Thickness Reference Chart
Weld Parameter Chart
217 618-A
Overload Protection Drive Motor Protection
− Maintenance & Troubleshooting
Routine Maintenance
Disconnect power
Tools Needed 030/.035 Groove
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
Remove handle locking nut Secure head tube in vice
Slide handle
Trouble Remedy
Troubleshooting Table
Circuit Diagram
− Electrical Diagram
Typical MIG Process Connections
− MIG Welding Gmaw Guidelines
Select Voltage
Typical MIG Process Control Settings
Wire Size Amperage Range
Thickness to Amperage a
Holding And Positioning Welding Gun
Short Normal Long
Conditions That Affect Weld Bead Shape
Push
Perpendicular Drag
Poor Weld Bead Characteristics
Good Weld Bead Characteristics
Gun Movement During Welding
Possible Causes Corrective Actions
Troubleshooting − Excessive Spatter
Troubleshooting − Porosity
Troubleshooting − Excessive Penetration
Troubleshooting − Lack Of Penetration
Troubleshooting − Incomplete Fusion
Troubleshooting − Burn-Through
Troubleshooting − Waviness Of Bead
Troubleshooting − Distortion
Weld bead
Troubleshooting Guide For Semiautomatic Welding Equipment
Common MIG Shielding Gases
Application
Drive rolls if necessary
Welding arc not stable Wire slipping in drive rolls
Readjust welding parameters
Welding power source
Consumables
− ACCESSORIES/CONSUMABLES
Accessories
Replacement Drive Rolls
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Service
Support
Assistance
Hobart Welding Products
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