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LORCH M 2090 - User Manual

LORCH M 2090
12 pages
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910.1053.1-12
Operation Manual
MIG/MAG Welding System
M-Series

Questions and Answers

  • A
    austinjeanneSep 8, 2025
    What causes arc or short circuit between contact tip and gas nozzle in LORCH Welding System?
    • R
      ryoungSep 9, 2025
      An arc or short circuit between the contact tip and gas nozzle in your LORCH Welding System can be caused by spatter build-up inside the gas nozzle. Remove it with special pliers.
  • P
    Paula EvansSep 12, 2025
    What causes higher wire wear out at wire-feeding unit of LORCH Welding System?
    • K
      kwardSep 12, 2025
      Higher wire wear out at the wire-feeding unit of your LORCH Welding System can occur if the wire rolls do not fit the wire diameter. Install the correct wire rolls. It can also be caused by incorrect contact pressure at wire feeding; adjust as described in the manual.
  • W
    Wesley BridgesSep 13, 2025
    What to do if there is not sufficient shielded gas in my LORCH M 2090 Welding System?
    • D
      deborahharrisSep 13, 2025
      If there is not sufficient shielded gas in your LORCH Welding System, it could be due to: * Wrong adjusted quantity of shielded gas: Adjust it correctly as described in the manual. * Dirty pressure reducer: Check the valve. * Torch, gas hose blocked or not airtight: Check and replace if necessary. * Shielded gas being blown away by draught: Avoid draught.
  • A
    Angel DaySep 15, 2025
    What to do if mains control lamp 40 does not light on LORCH M 2090 Welding System?
    • C
      Charles SilvaSep 15, 2025
      If the mains control lamp 40 does not light on your LORCH Welding System, it means that a phase is missing in the mains. Check the machine at another socket and check mains and fuses.
  • J
    Justin MurraySep 17, 2025
    What to do if the fan of my LORCH M 2090 is not working?
    • L
      Lorraine SanchezSep 18, 2025
      If the fan of your LORCH Welding System is not functioning, it indicates a missing phase in the mains. Check the machine at another socket and check the mains and fuses.

Summary

Safety Precautions and Transportation

General Safety Precautions

Emphasizes safe use of welding machines, removal of flammable materials, and protection against arc rays.

Transportation Guidelines

Specifies safe transport procedures, including securing the unit and removing gas bottles.

General Use and Unit Protection

Details general usage regulations, unit protection against overloading, and workpiece grounding.

Noise Emission Level

States the sound level of the unit is below 70 db(A) under standard load.

Electromagnetic Compatibility and Technical Data

Electromagnetic Compatibility (EMC)

Informs about EMC standards and potential disturbances to other devices.

Technical Data Overview

Provides detailed specifications for various M-Series welding models.

Before Operation Setup

Torch Connection Procedure

Connect the torch plug into the central socket for operation.

Mains Connection Guide

Connect the welding unit to the mains socket as per technical data.

Wire Spool Insertion

Insert the wire spool onto the wire coil pick-up correctly.

Wire Electrode Insertion

Insert the wire electrode through the torch and connection.

Ground Cable Connection

Connect the ground clamp to the workpiece securely.

Starting Up the Welding Unit

Operating Panel Overview

Description of controls and indicators on the operating panel.

Main Switch and Voltage Selection

Select mains voltage and switch on the unit.

Mode Selector Switch

Select welding mode (2-Stroke, 4-Stroke, Spot).

Step Switch Operation

Fine-tune welding voltage for material and electrode.

Wire Feed Control Knob

Fine-tune wire feed speed.

Spot Welding Control Knob

Adjust spot welding time.

Overload Indicator Lamp

Monitor unit overload via yellow control lamp.

MIG;MAG Welding Process Basics

MIG;MAG Welding Principle

Explanation of the MIG/MAG welding process using wire electrode and shielding gas.

Types of Welding Arc

Describes short circuit, transitional, long, and spray arcs.

MAG Welding Work Range

Table showing working ranges for different wire diameters and arc types.

Torch Manipulation and Arc Control

Torch Holding and Manipulation

Guidance on holding and manipulating the torch in various welding positions.

Arc Length Adjustment

Explains how arc length affects penetration and bead appearance.

Wire Electrode Length

Details the impact of electrode extension on amperage and penetration.

Troubleshooting Common Issues

Torch and Wire Feed Problems

Diagnoses issues like torch overheating, no wire feed, and irregular wire feeding.

Machine and Power Issues

Addresses problems like machine switching off, no mains light, and no shielded gas.

Performance and Connection Issues

Covers less welding performance, hot plug issues, and wire wear.

Options, Disposal, and Service

Wire Feed Options

Details variations for steel and aluminium wire feed units.

Product Disposal Guidelines

Instructions for environmentally compatible recycling of electric tools.

Service and Contact Information

Provides company contact details for service inquiries.

CE Certificate of Conformity

Declaration of conformity to relevant European standards.

LORCH M 2090 Specifications

General IconGeneral
BrandLORCH
ModelM 2090
CategoryWelding System
LanguageEnglish

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