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Handler 125
Hobart Welders Handler 125 User Manual
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Processes
OM-947
212 149B
June 2004
H
a
n
d
l
e
r 1
2
5 / 1
2
5 M
I
G
And
H-9A
Gun
Arc W
elding Power Source And
Wire Feeder
Description
MIG (GMAW) W
elding (Optional)
Flux Cored (FCA
W
) W
elding
R
2
Table of Contents
Table of Contents
3
Section 1 − Safety Precautions - Read before Using
5
Symbol Usage
5
Arc Welding Hazards
5
Additional Symbols for Installation, Operation, and Maintenance
7
Principal Safety Standards
7
EMF Information
8
Section 1 − Consignes de Securite − Lire Avant Utilisation
9
Signification des Symboles
9
Dangers Relatifs au Soudage à L'arc
9
Dangers Supplémentaires en Relation Avec L'installation, le Fonctionnement et la Maintenance
11
Principales Normes de Sécurité
12
Information Sur les Champs Électromagnétiques
12
Section 2 − Specifications
13
Specifications
13
Duty Cycle and Overheating
13
Volt-Ampere Curves
14
Section 3 − Installation
14
Installing Work Clamp
14
Process/Polarity Table
14
Changing Polarity
15
Installing Gas Supply
15
Installing Wire Spool and Adjusting Hub Tension
16
Selecting a Location and Connecting Input Power for 115 VAC Model
17
Threading Welding Wire
18
Section 4 − Operation
19
Controls
19
Weld Parameter Chart
20
Section 5 − Maintenance &Troubleshooting
22
Routine Maintenance
22
Overload Protection
22
Drive Motor Protection
22
Changing Drive Roll or Wire Inlet Guide
23
Replacing Gun Contact Tip
24
Cleaning or Replacing Gun Liner
25
Replacing Switch And/Or Head Tube
27
Troubleshooting Table
28
Section 6 − Electrical Diagram
29
Section 7 − Wire Welding Guidelines
30
Typical FCAW Process Connections
30
Typical MIG Process Connections
30
Typical Control Settings
31
Holding and Positioning Welding Gun
32
Conditions that Affect Weld Bead Shape
33
Gun Movement During Welding
34
Poor Weld Bead Characteristics
34
Good Weld Bead Characteristics
34
Troubleshooting − Excessive Spatter
35
Troubleshooting − Porosity
35
Troubleshooting − Excessive Penetration
35
Troubleshooting − Lack of Penetration
36
Troubleshooting − Incomplete Fusion
36
Troubleshooting − Burn-Through
36
Troubleshooting − Waviness of Bead
37
Troubleshooting − Distortion
37
Troubleshooting Guide for Semiautomatic Welding Equipment
37
Section 8 − Parts List
38
Options and Accessories
44
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Hobart Welders Handler 125 Specifications
General
Brand
Hobart Welders
Model
Handler 125
Category
Welding System
Language
English
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