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Smootharc MMA 170
BOC Smootharc MMA 170 User Manual
36 pages
Manual
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Smoothar
c
MMA 170
OPERA
TING MANUAL
2
Table of Contents
Welcome to a Better Way of Welding
2
Table of Contents
3
1 Recommended Safety Precautions
4
Health Hazard Information
4
Personal Protection
4
Electrical Shock
6
User Responsibility
6
2 Manual Metal Arc Welding Process (MMAW)
7
Introduction
7
Welding Machine
7
Welding Technique
8
Electrode Selection
8
Types of Joints
11
Fillet Welds
12
Typical Defects Due to Faulty Technique
15
3 Gas Tungsten Arc Welding (GTAW/TIG)
17
Introduction
17
Process
17
Process Variables
18
Welding Techniques
19
Shielding Gas Selection
20
Consumable Selection
21
Typical Welding Joints for Gas Tungsten Arc Welding
25
4 Machine Specifications and Contents
28
Operating Controls
28
5 Operating Functions
29
Welding Selections
29
Earthing
29
6 Technical Specifications
30
7 Periodic Maintenance
31
Daily Maintenance
31
Troubleshooting
31
8 Terms of Warranty
32
Limitations on Warranty
32
Warranty Repairs
32
9 Recommended Safety Guidelines
33
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BOC Smootharc MMA 170 Specifications
General
Input Voltage
240V
Output Current Range
10-170A
Input Frequency
50/60Hz
Electrode Size
1.6-4.0 mm
Input Power
6.6 kVA
Open Circuit Voltage
70V
Type
MMA
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