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Hobart Welding Products
140 manual
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Contents
Main
From Hobart to You
Page
TABLE OF CONTENTS
SECTION 1 SAFETY PRECAUTIONS - READ BEFORE USING
1-1. Symbol Usage
.
1-2. Arc Welding Hazards
ELECTRIC SHOCK can kill.
ARC RAYS can burn eyes and skin.
WELDING can cause fire or explosion.
FLYING METAL can injure eyes.
BUILDUP OF GAS can injure or kill.
HOT PARTS can cause severe burns.
1-3. Additional Symbols For Installation, Operation, And Maintenance
FIRE OR EXPLOSION hazard.
FALLING UNIT can cause injury.
OVERUSE can cause OVERHEATING
STATIC (ESD) can damage PC boards.
1-5. Principal Safety Standards
1-6. EMF Information
SECTION 2 CONSIGNES DE SCURIT LIRE AVANT UTILISATION
2-1. Symboles utiliss
.
2-2. Dangers relatifs au soudage la rc
UNE DCHARGE LECTRIQUE peut entraner la mort.
LES RAYONS DARC peuvent entra- ner des brlures aux yeux et la peau.
LE SOUDAGE peut provoquer un incendie ou une explosion.
DES PARTICULES VOLANTES peuvent blesser les yeux.
LES ACCUMULATIONS DE GAZ risquent de provoquer des blessures ou mme la mort.
DES PICES CHAUDES peuvent provoquer des brlures graves.
2-3. Dangers supplmentaires en relation avec linstallation, le fonctionnement et la maintenanc
e
Risque DINCENDIE OU DEXPLO- SION.
LA CHUTE DE LAPPAREIL peut blesser.
LEMPLOI EXCESSIF peut SUR- CHAUFFER LQUIPEMENT.
2-5. Principales normes de scurit
2-6. Information EMF
SECTION 3 DEFINITIONS
3-1. Symbols And Definitions
* CSA Rating
AAmperage VVoltage Hz Hertz Negative
SECTION 4 SPECIFICATIONS
4-1. Specifications
4-2. Duty Cycle And Overheating
Duty Cycle %
A or V
Output Amperes
4-3. Volt-Ampere Curves
SECTION 5 INSTALLATION
5-1. Installing Welding Gun
Gun Not Seated
Gun Fully Seated
Correct Incorrect
5-3. Process/Polarity Table
5-4. Changing Polarity
5-5. Installing Gas Supply
.
5-6. Selecting A Location And Connecting Input Power
5-7. Installing Wire Spool And Adjusting Hub Tension
Installing 8 in (203 mm) Wire Spool
Installing 4 in (102 mm) Wire Spool
5-8. Installing Contact Tip And Nozzle
Flux Nozzle (Optional)
MIG Nozzle (Standard)
5-9. Threading Welding Wire
.
3
12
.
4 5
8 9
6 7
SECTION 6 OPERATION
6-1. Controls
.
Notes
Page
Page
SECTION 7 MAINTENANCE & TROUBLESHOOTING
7-1. Routine Maintenance
7-2. Overload Protection
7-3. Drive Motor Protection
7-4. Changing Drive Roll Or Wire Inlet Guide
7-5. Replacing Gun Contact Tip
7-6. Cleaning Or Replacing Gun Liner
1 2
3
7-7. Replacing Switch And/Or Head Tube
7-8. Troubleshooting Table
Page
SECTION 9 MIG WELDING (GMAW) GUIDELINES
9-1. Typical MIG Process Connections
9-2. Typical MIG Process Control Settings
9-3. Holding And Positioning Welding Gun
9-4. Conditions That Affect Weld Bead Shape
9-5. Gun Movement During Welding
9-6. Poor Weld Bead Characteristics
9-7. Good Weld Bead Characteristics
9-8. Troubleshooting Excessive Spatter
9-9. Troubleshooting Porosity
9-10. Troubleshooting Excessive Penetration
9-11. Troubleshooting Lack Of Penetration
9-12. Troubleshooting Incomplete Fusion
9-13. Troubleshooting Burn-Through
9-14. Troubleshooting Waviness Of Bead
9-15. Troubleshooting Distortion
9-16. Common MIG Shielding Gases
9-17. Troubleshooting Guide For Semiautomatic Welding Equipment
Problem Probable Cause Remedy
Page
SECTION 10 ACCESSORIES/CONSUMABLES
10-1. Accessories
10-2. Consumables
10-3. Replacement Drive Rolls
10-4. Regulator/Flowmeter
Page
Page
Warranty Questions?
Call 1-800-332-3281 7 AM 6 PM EST
Effective January 1, 2007
* Original Main Power Rectifiers * Transformers * Stabilizers * Reactors
Please complete and retain with your personal records.
Resources Available
Always provide Model Name and Serial/Style Number.
Owners Record
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