User Manuals: Lincoln Electric IDEALARC R3R-300 Welder

Manuals and User Guides for Lincoln Electric IDEALARC R3R-300 Welder. We have 2 Lincoln Electric IDEALARC R3R-300 Welder manuals available for free PDF download: Service Manual, Operator's Manual

Lincoln Electric IDEALARC R3R-300 Service Manual

Lincoln Electric IDEALARC R3R-300 Service Manual (108 pages)

Lincoln Electric Welder User Manual

Brand: Lincoln Electric | Category: Welding System | Size: 1 MB

Table of Contents

Master for All Sections

6
- Service Manual
  1
- Safety
  
  2
- Installation
  
  8
  - Technical Specifications, Idealarc R3R-300
    8
  - Technical Specifications, Idealarc R3R-400
    9
  - Technical Specifications, Idealarc R3R-500
    10
    
    Safety Precautions
    11
    
    Select Suitable Location (Stacking, Tilting, Lifting
    11
  - Select Suitable Location
    11
    
    Lifting
    11
    
    Stacking
    11
    
    Tilting
    11
    
    Ground Connection
    12
    
    Input Connections
    12
    
    Input Supply Connections
    12
    
    Input Wire and Fuse Size
    13
    
    Reconnect Procedure
    14
    
    Output Connections (Stick, TIG, Air/Carbon Arc Cutting
    15
Operation

17
- Operation Section
  17
- Operation
  
  18
  - Safety Instructions
    18
  - General Description
    19
    
    Design Features and Advantages
    19
    
    Recommended Processes
    19
    
    Welding Capability
    19
  - Controls and Settings
    20
  - Welding Operation
    22
    
    Local Control
    22
    
    Operating Steps
    22
    
    Remote Control
    22
    
    Accessories Section
    23
    
    Factory-Installed Options
    24
    
    Field Installed Options
    24
    
    Pocket Amptrol
    24
- Accessories
  
  24
  - Tig Welding Options
    24
  - Routine and Periodic Maintenance
    25
  - Maintenance Section
    25
- Maintenance
  
  26
Theory of Operation

29
- Theory of Operation Section
  29
- Theory of Operation
  30
  - General Description
    30
    
    Input Line Voltage, Contactor and Main Transformer
    30
    
    Output Rectification, Control, and Feedback
    31
    
    Optional Polarity Switch and Amptrol Circuits
    32
    
    Protective Devices and Circuits
    33
    
    SCR Operation
    34
Troubleshooting & Repair Section

35
- Troubleshooting and Repair
  36
  - How to Use Troubleshooting Guide
    36
  - Troubleshooting & Repair Section
    36
  - PC Board Troubleshooting Procedures
    37
    
    Troubleshooting Guide
    38
  - Test Procedures
    44
    
    Input Contactor Test (Equipped with AC Coil
    44
    
    Materials Needed
    44
    
    Test Procedure
    45
    
    Input Contactor Test (R3R 300 Equipped with DC Coil
    47
    
    Control Transformer (T2) Voltage Test
    50
    
    Main Transformer (T1) Voltage Test
    53
    
    Test Points
    57
    
    Static Scr/Diode Rectifier Bridge Test
    58
    
    Active SCR Test
    62
    
    Pocket Amptrol Circuit Test
    65
    
    Normal Open Circuit Voltage Waveform
    69
    
    Scope Settings
    69
    
    Typical Output Voltage Waveform-Machine Loaded
    70
    
    Typical Scr Gate Voltage Waveform
    71
  - Replacement Procedures
    73
    
    Input Contactor (CR1) Cleaning/Replacement
    73
    
    Cleaning Procedure
    74
    
    Fan Motor and Blade Removal and Replacement
    75
    
    Scr/Diode Rectifier Assembly Removal and Replacement
    77
    
    Troubleshooting
    79
    
    SCR Removal and Replacement
    80
    
    Special Instructions
    81
    
    Mounting of Stud Type Diodes to Aluminum Heat Sinks
    86
    
    Main Transformer Removal and Replacement
    88
    
    Removal of Lift Bail
    89
  - Retest after Repair
    95
    
    Electrical Diagrams
    101
    
    Electrical Diagrams Section
    101
    
    Wiring Diagram-R3R-300
    101
    
    Wiring Diagram - R3R-400 (Code 9537
    102
    
    Wiring Diagram - R3R-400 (Code 9874), R3R-500
    103
    
    Pocket Amptrol Schematic
    104
    
    Snubber Board Schematic & Layout
    105
    
    Electrical Diagrams
    106
    
    R3R-300 Control PC Board
    106
    
    R3R-400 Control PC Board
    107
    
    R3R-500 Control PC Board
    108

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Lincoln Electric IDEALARC R3R-300 Operator's Manual

Lincoln Electric IDEALARC R3R-300 Operator's Manual (32 pages)

Brand: Lincoln Electric | Category: Welding System | Size: 1 MB

Table of Contents

California Proposition 65 Warnings
2
Electric Shock Can Kill
3
Table of Contents
7
Installation

8
- Location and Stacking
  8
- Input Wiring
  8
- Output Connections
  9
____________________________________________________________________________

12
Operating Instructions

12
Maintenance

12
- General Maintenance
  12
____________________________________________________________________________

13
Troubleshooting

13
- How to Use Troubleshooting Guide
  13
- Troubleshooting Procedures
  20
Wiring Diagrams

24

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