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Power MIG 255C
Lincoln Electric Power MIG 255C Welder Manuals
Manuals and User Guides for Lincoln Electric Power MIG 255C Welder. We have
2
Lincoln Electric Power MIG 255C Welder manuals available for free PDF download: Specification Sheet, Service Manual
Lincoln Electric Power MIG 255C Service Manual (109 pages)
Lincoln Electric Welding System User Manual
Brand:
Lincoln Electric
| Category:
Welding System
| Size: 3 MB
Table of Contents
-Installation Section-
7
Service Manual
1
California Proposition 65 Warnings
2
Electric and Magnetic Fields
2
Electric Shock Can Kill
3
Fumes and Gases
3
Table of Contents
7
Installation Section
7
Installation
8
Technical Specifications - POWER MIG 255C
8
Installation
9
Safety Precautions
9
Uncrating the POWER MIG 255C
9
Location
9
Input Power, Grounding and Connection Diagrams
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 Section
13
Operation
14
ELECTRIC SHOCK Can Kill
14
Welding Capability
15
Product Description
15
Recommended Processes and Equipment
15
Description of Controls
16
Wire Drive Roll
16
Operation
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
Accessories Section
23
Drive Roll Kits
24
Magnum Gun Connection Kit
24
Alternative Magnum Gmaw Gun and Cable Assemblies
24
TIMER KIT INSTALLATION (Optional K1701-1)
24
Spool Gun
25
Making a Weld with the Magnum Sg Spool Gun
26
Power Mig
28
Maintenance Section
29
Maintenance
30
Gun Handle Disassembly
31
Liner Removal, Installation and Trimming Instructions for Magnum 250L
31
Theory of Operation Section
33
Theory of Operation
34
Input Line Voltage and Main Transformer
34
Output Rectification and Feedback Control
35
Constant Voltage Output
36
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
Troubleshooting and Repair
42
PC Board Troubleshooting Procedures
43
Electric Shock
43
Troubleshooting Guide
44
Test Procedures
51
Test Description
51
Materials Needed
51
Main Transformer Test
51
Test Procedure
52
Troubleshooting and Repair
54
Rectifier Diode Bridge Test
55
Static SCR Rectifier Assembly Test
59
Active SCR Rectifier Assembly Test
63
Wire Drive Motor and Tachometer Feedback Test
67
Normal Open Circuit Voltage Waveform
71
Scope Settings
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
Removal and Replacement Procedure
78
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
Troubleshooting and Repair
93
Fan Motor Assembly Removal and Replacement
95
Retest after Repair
97
Electrical Diagrams Section
99
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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Lincoln Electric Power MIG 255C Specification Sheet (168 pages)
Lincolnelectric Wire Feeder Specification Sheet
Brand:
Lincoln Electric
| Category:
Welding System
| Size: 18 MB
Table of Contents
Table of Contents
1
Stick Welders
3
Stick Welders
4
Stick Welders
8
Precision TIG
10
TIG Welders
10
TIG Welders
16
MIG: Wire Feeder/Welders
18
Power Mig
19
MIG: Industrial Welders
24
Multi-Process Welders
28
Power Wave
35
Advanced Process Welders
35
Multi-Operator
41
Engine Drives: Commercial/Small Contractors
44
Engine Drives: Commercial/Small Contractors
51
Engine Drives: Industrial/Construction
53
Severe Duty
55
Power Feed
62
Semiautomatic Wire Feeders
62
Semiautomatic Wire Feeders
74
Automatic Wire Feeders
76
Automatic Wire Feeders
79
Plasma Cutting Systems
80
Plasma Cutting Systems
82
Environmental Systems
83
Environmental Systems
88
Automated Solutions
89
Power Wave
91
Power Feed
94
Package Options
97
Stainless Steel
104
Consumables
107
Accessory Kits
148
Remote Controls
148
Engine Drive
151
Miscellaneous Kits
152
Power Sources
154
Power Source Options
155
Wire Feeder
157
Weld Cables
159
Drive Roll and Guide Tube Kits
161
Drive Roll and Wire Guide Kits
161
Welding Guns
163
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