Contents
3
1.
Safety Precautions
1.0 Health Hazard Information
4
1.1 Personal Protection
4
1.2 Electric Shock
5
1.3 Use of Gas Cylinders
5
1.4 User Responsibility
5
2.
Manual Metal Arc Welding Process (MMAW)
2.0 MMA Welding Principle
6
2.1 Fundamental Equipment Requirements
6
2.2 Control of the Process
7
2.3 Features of the Process
7
2.4 Application of MMA Welding
7
2.5 MMA Electrode Characteristics
7
2.6 Electrode types
8
2.7 Care of Electrodes
8
3.
Gas Tungsten Arc Welding (GTAW)
3.0 Gas Tungsten Arc Welding (TIG) Principle
9
3.1 Equipment Requirements
9
3.2 Modes of Operation
9
3.3 Electrode Types and Preparation
10
3.4 Consumables
11
3.5 Control of the Process
11
3.6 Features of the Process
12
3.7 Application of GTAW
12
3.8 Technique
12
4.
Shielding Gases
4.0 Overview
13
4.1 General Instructions for Pressure Regulators 13
5.
Plant Specifications
5.0 Machine Specifications and Contents
14
6.
Operating Controls
6.0 Diagram A
15
6.1 BOC Inverweld 110 VRD and 140 VRD
Operation
16
7.
Periodic Maintenance
7.0 Power Source
17
8.
Electrical Diagrams
8.0 Inverweld 140
18
8.1 Inverweld 110 VRD / 140 VRD
19
9.
Machine Spare Parts
9.0 Diagram D – Machine Spare Parts
20
9.1 Machine Spare Parts List
21
10. Terms of Warranty
10.0 Terms of Warranty
22
10.1 Limitations on Warranty
22
10.2 Warranty Repairs
22
11. Glossary
23
