Lincoln Electric 7429 Manuals

Manuals and User Guides for Lincoln Electric 7429. We have 1 Lincoln Electric 7429 manual available for free PDF download: Service Manual

Lincoln Electric 7429 Service Manual

Lincoln Electric 7429 Service Manual (130 pages)

LIGHTWEIGHT TRACTOR

Brand: Lincoln Electric | Category: Tractor | Size: 8 MB

Table of Contents

- Product Overview Section

9
- Table of Contents
  9
- Product Overview
  11
- Product Summary
  11
  - General Physical Description
    11
  - Recommended Processes and Equipment
    12
  - Required Equipment
    12
    
    Cables
    12
    
    Contact Nozzle Assemblies
    13
  - Recommended General Options
    14
- Initial Set up Section

17
- Initial Set up
  18
- LT-7 Tractor Nomenclature
  18
  - Wire Feed and Control Components
    19
  - Control Box
    19
  - Front Guidance Assembly
    21
  - Wire Feed Components
    21
  - Flux Hopper Assembly
    22
- Assembly Section

23
- Assembly
  24
- General Information
  24
- Tools Required
  25
- K231-1 Contact Nozzle
  26
- K148 Contact Nozzle
  28
- K149 Linc-Fill
  30
  - Set up for Butt Welds
    31
    
    Steering Methods
    32
  - Set up for Horizontal Fillet Welds
    34
  - Set up for Lap Welds
    38
  - Set up for Flat Fillet Welds
    39
- K395 Track Model
  42
  - Lt-7 Modification for Twinarc® Welding
    46
    
    Wire Feed Head Modifications
    46
- Operation Section

61
- Operation
  62
- Safety Precautions
  62
- Constant Current Vs Constant Voltage
  66
- General Information
  66
- Mode Selection
  68
- Polarity Selection
  69
- Making a Weld
  70
- Maintenance Section

79
- Maintenance
  80
- Wire Feed Head
  81
  - Drive Rolls and Guide Tubes
    81
  - Wire Straightener
    81
- Circuit Protection
  82
- Contact Nozzle Assembly
  82
- Grounding Lead Protector
  82
- Travel Components
  82
- Troubleshooting and Repair

83
- PC Board Troubleshooting Procedures
  85
- Troubleshooting and Repair
  85
- PC Board Status Lights
  102
  - Wire Drive Motor Test
    105
  - Travel Motor Test
    107
- Wire Drive Motor Removal and Replacement
  111
- Retest after Repair
  116

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