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Welding System
WIRE-MATIC 255 SVM 119-A
Lincoln Electric WIRE-MATIC 255 SVM 119-A Manuals
Manuals and User Guides for Lincoln Electric WIRE-MATIC 255 SVM 119-A. We have
1
Lincoln Electric WIRE-MATIC 255 SVM 119-A manual available for free PDF download: Service Manual
Lincoln Electric WIRE-MATIC 255 SVM 119-A Service Manual (98 pages)
Lincoln Electric Welding System User Manual
Brand:
Lincoln Electric
| Category:
Welding System
| Size: 1.95 MB
Table of Contents
Table of Contents
7
Safety
2
Electric Shock Can Kill
2
Table of Contents
7
Installation
9
Technical Specifications
10
Safety Precautions
11
Select Proper Location
11
Input Connections
11
Stacking
11
Tilting
11
Fuse and Wire Sizes
12
Input Power Connections and Ground Connections
12
Connect Shielding Gas
13
Reconnect Procedure
14
Connect Output Components
16
Install the Work Clamp
16
Output Polarity Connection
16
Gun Liner and Contact Tip Installation
16
Wire Size Conversion Parts
17
Gun and Cable Installation
17
Wire-Matic
17
Operation
19
General Description
20
Safety Instructions
20
Design Features and Advantages
21
Unit Features
21
Power Source Features
21
Recommended Processes and Equipment
21
Limitations
22
Wire Feeder Features
22
Machine Capability
22
Controls and Settings
23
Using the Wire Drive Roll
24
Procedure for Changing Drive Roll
24
Loading the Wire Reel
24
Feeding Electrode
25
Proper Wire Feeding
25
Operating Steps
26
Setting Idle Roll Pressure
26
Starting the Welder
26
Changing Run-In Mode
26
Enter Slow Run-In Mode
26
Enter Fast Run-In Mode
26
Making a Weld
27
Accessories
29
K672-1 Spool Gun Adapter Kit
30
Magnum Gun Connection Kit (Optional K466-6
30
Making a Weld with the Spool Gun Adapter and Spool Gun (K672-1) Installed
30
Other Available Magnum 250L Gun and Cable Assembly
30
Making a Weld with the Spool Gun Adapter (K672-1) Installed
31
Timer Kit (K585-1
32
Timer Kit Installation (Optional K585-1
32
Aluminum Feeding Kit (K673-1)
33
Drive Roll Kits
33
K363P Readi-Reel Adapter
33
K468 8" Spool Adapter
33
Making Spot and Stitch Welds with Timer Kit Installed
33
Dual Cylinder Mounting (K671-1
34
Dual Cylinder Mounting Kit
34
Maintenance
35
Routine and Periodic Maintenance
36
Safety Precautions
36
Component Locations
37
Cable Cleaning
38
Contact Tip and Gas Nozzle Installation
38
Drive Rolls and Guide Tubes
38
Gun Tubes and Nozzles
38
Liner Removal and Replacement
39
Liner Removal, Installation, and Trimming Instructions for Magnum 250L
39
Gun Handle Disassembly
40
Accessories and Expendable Replacement Parts for Magnum 250L Gun and Cable Assemblies
41
Theory of Operation
43
Power Supply Operation
43
SCR Operation
43
Wire Drive Motor and Feedback
47
Thermal Protection
48
SCR Operation
49
Troubleshooting & Repair
51
PC Board Troubleshooting Procedures
51
Troubleshooting and Repair
52
How to Use Troubleshooting Guide
52
Troubleshooting & Repair Section
52
PC Board Troubleshooting Procedures
53
Troubleshooting Guide
54
Main Transformer Test
61
Test Procedures
62
Static Scr Rectifier Assembly Test
64
Active SCR Rectifier Assembly Test
67
Wire Drive Motor and Tachometer Feedback Test
70
Normal Open Circuit Voltage Waveform
73
Typical Output Voltage Waveform - Machine Loaded
74
Abnormal Output Voltage Waveform - Machine Loaded One Output SCR Not Functioning
75
Abnormal Open Circuit Voltage Output Capacitor Bank Not Functioning
76
Typical SCR Gate Voltage Waveform
77
Control PC Board Removal and Replacement
78
Wire Drive Assembly Removal and Replacement
80
SCR Output Rectifier Removal and Replacement
82
Capacitor Bank Removal and Replacement
84
Main Transformer Removal and Replacement
86
Fan Motor and Fan Removal and Replacement
88
Retest after Repair
91
Electrical Diagrams
95
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