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LORCH M 2020 - User Manual

LORCH M 2020
12 pages
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910.1053.1-12
Operation Manual
MIG/MAG Welding System
M-Series

Questions and Answers

  • E
    Elizabeth BensonSep 9, 2025
    What causes arc or short circuit between contact tip and gas nozzle in LORCH M 2020?
    • D
      Dustin PalmerSep 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.
  • D
    David TaylorSep 12, 2025
    What causes higher wire wear out at wire-feeding unit of LORCH M 2020?
    • R
      Robert RochaSep 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.
  • A
    Austin WilliamsSep 13, 2025
    What to do if there is not sufficient shielded gas in my LORCH M 2020 Welding System?
    • U
      ufoxSep 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.
  • B
    Benjamin ReyesSep 15, 2025
    What to do if mains control lamp 40 does not light on LORCH M 2020 Welding System?
    • A
      April MoralesSep 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.
  • A
    Amber StoutSep 17, 2025
    What to do if the fan of my LORCH M 2020 Welding System is not working?
    • L
      Lee RossSep 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

General Safety Instructions

Essential safety rules for operating welding and cutting machines to prevent injuries.

Transportation Safety

Guidelines for safe transportation of welding equipment, including lifting and securing.

Technical Data

Before Operation

Torch Connection

Instructions for connecting the torch to the central socket of the welding machine.

Mains Connection

Guidance on plugging the unit into the mains socket with appropriate fusing.

Wire Spool Insertion

Steps for opening the machine lid and mounting the wire spool on the pick-up.

Wire Electrode Insertion

Procedure for inserting the wire electrode into the torch, including contact tip removal.

Ground Cable Connection

Instructions for connecting the ground cable to the machine and workpiece.

Ground Clamp Connection

Ensuring proper connection of the ground clamp to the welding location.

Starting Up

Operating Panel Overview

Explanation of the main switch, mode selector, step switch, and control knobs.

MIG;MAG Welding Process Basics

Torch Handling and Arc Control

Care and Maintenance

Troubleshooting

LORCH M 2020 Specifications

General IconGeneral
BrandLORCH
ModelM 2020
CategoryWelding System
LanguageEnglish

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