EasyManua.ls Logo

ESAB AK 400 User Manual

ESAB AK 400
23 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
AK 400
AK 600
Fully Thyristorised MIG/MAG
Welding Power Source
Instruction manual
Question and Answer IconNeed help?

Do you have a question about the ESAB AK 400 and is the answer not in the manual?

ESAB AK 400 Specifications

General IconGeneral
Number of Phases3
Frequency50/60 Hz
Duty Cycle at 60%400 A
Protection ClassIP23
Insulation ClassH
Power SourceInverter
Efficiency85%
Welding MethodMIG/MAG
Welding Current Range30-400 A
Wire Diameter0.8-1.6 mm
Output Current Range30-400 A

Summary

SAFETY

User Familiarization with Equipment

Ensuring users are familiar with welding equipment operation, safety, and functions.

Operator Safety Responsibilities

Operator duties to ensure safety, including preventing unauthorized persons and protecting the unprotected.

Safe Workplace Conditions

Conditions required for a safe working environment.

Mandatory Personal Safety Equipment

Mandatory wear of safety glasses, flameproof clothing, and gloves.

General Welding Safety Precautions

General safety measures like secure return cables and fire extinguisher availability.

ASSEMBLING

ACCESSORIES LIST FOR AK 400 / AK 600 THYRISTORISED MIG/MAG WELDING POWER SOURCES

RATING OF AK 400 / AK 600 THYRISTORISED MIG/MAG WELDING POWER SOURCES

CAUTIONS FOR INSTALLATION

Equipment Capacity Specifications

Details on input voltage, phase, frequency, rating, fuse capacity, and cable requirements.

Installation Location Guidelines

Guidelines for selecting a suitable installation location, considering environmental factors and spacing.

Ventilation Recommendations

INSTALLATION ITEMS OF AK 400 / AK 600

WELDING OPERATIONS

Checking Gas Supply

Procedure for checking gas supply using the SHIELD GAS switch.

Selecting Shielding Gas Method

Setting the correct switch for CO2 or Ar-CO2 shielding gas.

Self-Hold Function Explanation

Explanation of the self-hold function for maintaining the arc.

Arc Crater Control Operation

How to fill arc craters using crater current and voltage controls.

Remote Control Unit Adjustments

Adjusting welding voltage and current via the remote control unit.

Remote Welding Voltage Adjustment

JIG TERMINAL AND CHANGEOVER TERMINALS IN WELDING POWER SOURCE

Jig and Changeover Terminals

Description of signal terminals for welding jigs and gas valve operation.

PREFLOW ON AND OFF CHANGEOVER TERMINALS

Preflow Changeover Terminals

Information on preflow timer and shielding gas preflow control via PCB terminals.

FTT Changeover Terminals

Details on FTT circuit for arc striking enhancement and its ON/OFF control.

ACTION

Crater Unit/Self-Hold Function: Active

Diagram and description of actions when crater unit/self-hold is active.

Self-Hold Function: Inactive

MAINTENANCE & INSPECTION

Periodic Maintenance Inspections

Guidelines for periodic maintenance checks every 3-6 months.

Insulation Test Cautions

AFTER SALES SERVICE

After Sales Service Contact Procedure

Procedure for contacting ESAB for abnormalities, requiring serial number and purchase details.

FAULT FINDING

Troubleshooting: Auto Stop & WARN Lamp

Troubleshooting steps for automatic welding stops and the 'WARN' lamp.

Troubleshooting: Wire Feed Failure

Steps to resolve wire feeding issues when the torch switch is activated.

Troubleshooting: Wire Feed Inch vs. Weld

Troubleshooting: No Wire Feed or Output

Troubleshooting: Current Adjustment Failure

Troubleshooting: Voltage Adjustment Failure

Troubleshooting: No Gas Flow

WIRING DIAGRAM - AK 400

WIRING DIAGRAM - AK 600

RECOMMENDED LIST OF SPARES

WELDING DEFECTS, POSSIBLE CAUSES AND CORRECTIVE ACTIONS GAS METAL ARC WELDING

Welding Defects: Weld Metal Cracks

Causes and corrective actions for weld metal cracks, including depth-to-width ratio and crater cooling.

Welding Defects: Inclusions

Addressing inclusions caused by multiple passes or high travel speeds.

Welding Defects: Lack of Penetration

Welding Defects: Porosity

Related product manuals