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POWER MIG SVM170-A
Lincoln Electric POWER MIG SVM170-A Manuals
Manuals and User Guides for Lincoln Electric POWER MIG SVM170-A. We have
1
Lincoln Electric POWER MIG SVM170-A manual available for free PDF download: Service Manual
Lincoln Electric POWER MIG SVM170-A Service Manual (109 pages)
Lincoln Electric Welding System User Manual
Brand:
Lincoln Electric
| Category:
Welding System
| Size: 3.93 MB
Table of Contents
-Installation Section-
7
Service Manual
1
Electric Shock Can Kill
3
Table of Contents
7
Installation
8
Technical Specifications - POWER MIG 255C
8
Safety Precautions
9
Uncrating the POWER MIG 255C
9
Location
9
Input Power, Grounding and Connection Diagrams
9
Installation
9
Dual Voltage Machine Input Connections
10
Triple Voltage Machine Input Connections
11
Output Polarity Connections
11
Gun and Cable Installation
12
Shielding Gas
12
Auxiliary Power Receptacles
12
-Operation Section-
13
Operation
14
Product Description
15
Recommended Processes and Equipment
15
Welding Capability
15
Description of Controls
16
Wire Drive Roll
16
Wire Size Conversion Parts
16
Procedure for Changing Drive and Idle Roll Sets
17
Wire Reel Loading - Readi Reels, Spools or Coils
17
To Mount a 30 Lb. (14 Kg) Readi-Reel Package (Using the
17
Or 14 Lb (6 Kg) Innershield Coils
17
Feeding Wire Electrode
18
Idle Roll Pressure Setting
18
To Start the Welder
18
Wire Drive Configuration
18
Making a Weld
20
Setting Run-In Speed on Standard Power MIG Feeder
20
Fast or Slow Run-In Mode Selection (When Timer Option Is Not Installed
20
Instructions to Enter Slow Run-In
20
Instructions to Enter Fast Run-In
20
Avoiding Wire Feeding Problems
21
Fan Control
21
Input Line Voltage Protection
21
Wire Feed Overload Protection
21
Overcurrent Protection
22
Drive Roll Kits
24
Magnum Gun Connection Kit
24
Alternative Magnum Gmaw Gun and Cable Assemblies
24
Gun Handle Disassembly
31
Theory of Operation
34
Wire Drive Motor and Feedback
37
Scr Operation
39
Welding Thermal Overload Protection
22
-Troubleshooting and Repair Section-
41
How to Use Troubleshooting Guide
42
PC Board Troubleshooting Procedures
43
Troubleshooting Guide
44
Test Procedures
51
Main Transformer Test
51
Troubleshooting and Repair
54
Rectifier Diode Bridge Test
55
Static SCR Rectifier Assembly Test
59
Active SCR Rectifier Assembly Test
61
Wire Drive Motor and Tachometer Feedback Test
67
Normal Open Circuit Voltage Waveform
71
Typical Output Voltage Waveform - Machine Loaded
72
Abnormal Output Voltage Waveform - Machine Loaded One Output SCR Not Functioning
73
Abnormal Open Circuit Voltage Output Capacitor Bank Not Functioning
74
Typical SCR Gate Voltage Waveform
75
Component Replacement Procedures
77
Control PC Board Removal and Replacement
77
Wire Drive Assembly Removal and Replacement
81
SCR Output Rectifier Removal and Replacement
85
Capacitor Bank Removal and Replacement
89
Main Transformer and Output Choke Removal and Replacement
91
Retest after Repair
97
Electrical Diagrams
100
Wiring Diagram - Entire Machine - Code 11192 (L12464)
100
Wiring Diagram - Entire Machine Code 11218 (L12506)
101
Schematic - Entire Machine - (G4752
102
Schematic - Control PC Board - (G4823-2D1 Sheet 1
103
Schematic - Control PC Board - (G4823-2D1 Sheet 2
104
Schematic - Control PC Board - (G4823-2D1 Sheet 3
105
PC Board Assembly - Control - (G4824-2D1
106
Schematic - Display Pc Board (L10951)
107
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