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LN-25 PORTABLE CV
Lincoln Electric LN-25 PORTABLE CV Manuals
Manuals and User Guides for Lincoln Electric LN-25 PORTABLE CV. We have
1
Lincoln Electric LN-25 PORTABLE CV manual available for free PDF download: Service Manual
Lincoln Electric LN-25 PORTABLE CV Service Manual (90 pages)
SEMIAUTOMATIC WIRE FEEDER
Brand:
Lincoln Electric
| Category:
Welding Accessories
| Size: 8.31 MB
Table of Contents
V V Master for All Sections
6
Safety
3
Table of Contents
6
Installation
9
Technical Specifications
9
Physical Dimensions
9
Safety Precautions
10
Power Source Connection
10
Weld Cable Connection
12
Wire Feed Drive Roll and Guide Tube Kits
12
Electrode Cable Connection
12
Work Cable Connection
12
- Operation Section -
14
Operation
15
Safety Precautions
15
General Description
15
Recommended Processes and Equipment
15
Welding Capability
15
Instruments and Controls
16
Sequence of Operation
18
Loading Electrode
18
Mounting 10 to 30 Lb Spools
18
Mounting 13 or 14 Lb Innershield Coils
18
Mounting 22 to 30 Lb Readi-Reel Coils
18
Idle Roll Pressure Setting
19
Loading Wire Drive
19
Presetting Wire Feed Speed
20
Setting Arc Sensing Wire Feed Speed (VV [CC] Mode
20
Setting Constant Wire Feed Speed (CV Mode
20
Making a Weld
21
Welding
22
Procedure at End of Coil
22
Automatic Protection Shutdown
23
Motor Overload Shutdown
23
Overvoltage Shutdown
23
- Accessories Section -
24
Accessories
25
Ln-25 Option Chart
25
Optional Accessories
26
K430-1 Gas Solenoid Kit
26
K434-1 Gas Flow Timer Kit
26
Remote Output Control Options and Control Cable Assemblies
27
K431-1 Remote Output Control Kit
27
K432 Remote Control Cable Assembly
27
K433 Power Source Remote Box
27
K443-1 LN-25 Contactor Kit
27
K439 Remote Extension Cable Assembly
28
K444, K444-1 or K444-2 Remote Voltage Control Kit
28
K624-1 42V Remote Output Control Module
28
K625, K626, K627 Remote Control Cable Assembly
28
Maintenance
31
Safety Precautions
31
Routine Maintenance
31
Circuit Protection and Automatic Shutdown
31
Adjusting Speed Sensor Module
31
Calibration of LN-25 Wire Speed Dial
32
Theory of Operation
35
General Description
35
Control Circuit Operation
35
- Troubleshooting and Repair Section -
38
Troubleshooting and Repair
39
How to Use Troubleshooting Guide
39
PC Board Troubleshooting Procedures
40
Troubleshooting and Repair
40
Troubleshooting Guide
41
Troubleshooting Guide
42
Gas Solenoid Valve and Solenoid PC Board Test
44
Test Procedures
45
Hall Effect Module Test
49
Wire Drive Motor Test
52
Contactor Test
54
Contactor PC Board Replacement
57
Control PC Board Replacement
61
Contactor Replacement
64
Gas Solenoid Valve And/Or Solenoid PC Board Replacement
67
Drive Motor and Gearbox Replacement and Access to Hall Effect Module
71
Retest after Repair
75
Electrical Diagrams
78
Wiring Diagrams
78
Control PC Board Layout
83
Contactor PC Board Layout
87
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