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LORCH M-Pro Performance Series - User Manual

LORCH M-Pro Performance Series
340 pages
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909.1239.9-10
M-Pro Performance
DE
Bedienungshandbuch Seite 2
EN
Operation Manual Page 34
ES
Manual de instrucciones Página 66
NL
Bedieningshandboek Pagina 98
RU
Руководство пользователя стр. 130
FR
Manuel d‘utilisation Page 164
CS
Návod k použití strana 198
IT
Manuale di istruzioni Pagina 230
PL
Podręcznik użytkownika Strona 262
PT
Manual de utilização Página 294

Table of Contents

Questions and Answers

  • M
    Michael YoungAug 21, 2025
    Why is the welding power reduced on my LORCH M-Pro Performance?
    • R
      rebecca76Aug 21, 2025
      If you notice reduced welding power in your LORCH Welding System, consider the following: * A missing phase. Try a different power socket and check the supply cable and mains fuses. * Insufficient ground contact at the workpiece. Ensure a good, clear ground connection. * The ground cable is not correctly inserted. Lock the ground connector by turning it clockwise. * A faulty torch. Repair or replace the torch.
  • B
    Brian FarleyAug 23, 2025
    What to do if the inert gas feed is insufficient on my LORCH M-Pro Performance?
    • J
      Julie JeffersonAug 23, 2025
      If the inert gas feed is insufficient in your LORCH Welding System, consider these possible causes: * The inert gas quantity is set incorrectly at the pressure reducer. Adjust the setting as described in the operating instructions. * A dirty pressure reducer. Check the pressure reducing nozzle. * A blocked or leaking torch or gas hose. Check these components and replace if necessary. * Draughts blowing the inert gas away. Eliminate the draughts.
  • J
    Jack JonesAug 26, 2025
    Why does my LORCH M-Pro Performance keep switching off?
    • M
      Ms. Carly Bates MDAug 26, 2025
      If your LORCH Welding System switches off unexpectedly, it could be due to: * Exceeding the duty cycle. Allow the equipment to cool down at no-load. * Insufficient cooling of components. Check the air inlet and outlet on the equipment.
  • J
    Janice PerryAug 28, 2025
    What to do if inert gas is missing from my LORCH Welding System?
    • W
      William EvansAug 28, 2025
      If inert gas is missing from your LORCH Welding System, consider the following: * The gas cylinder is empty. Replace it. * The torch is faulty. Check and replace if necessary. * The pressure reducer is dirty or faulty. Check and replace if necessary. * The gas cylinder valve is faulty. Replace the gas cylinder.
  • S
    Stephen ZamoraAug 30, 2025
    How to fix an unstable arc on my LORCH M-Pro Performance?
    • C
      Cindy VillarrealAug 30, 2025
      If you're experiencing an unstable arc with your LORCH Welding System, it could be because the contact tip doesn't match the wire diameter, or the contact tip is worn. Check the contact tip and replace it if necessary.
  • S
    Stephanie ReedSep 1, 2025
    Why does the wire feed unit of my LORCH M-Pro Performance Welding System have increased wire abrasion?
    • C
      Cameron MullinsSep 1, 2025
      If the wire feed unit has increased wire abrasion on your LORCH Welding System, consider: * The wire feed rollers do not match the wire diameter. Fit the correct feed rollers. * Incorrect contact pressure on the wire feed unit. Set the pressure as described in the operating instructions.
  • M
    Melanie LesterSep 3, 2025
    What to do if the torch switch has no function on my LORCH M-Pro Performance?
    • K
      kgutierrezSep 3, 2025
      If the torch switch on your LORCH Welding System has no function when activated: * Ensure the union nut from the torch hose pack to the central socket is correctly tightened. Tighten the union nut. * Check for an open circuit in the control cable within the torch hose pack and replace if necessary. * The thermal protection may have triggered. Allow the equipment to cool down at no-load.
  • T
    Theresa VincentSep 5, 2025
    How to fix inert gas that won't switch off on my LORCH M-Pro Performance?
    • A
      Alison VaughnSep 5, 2025
      If the inert gas does not switch off in your LORCH Welding System, the gas valve may be dirty or sticking. Remove the torch and pressure reducer, then blow out the gas valve in the opposite flow direction with compressed air.
  • J
    Jessica MatthewsSep 7, 2025
    What causes wire to stick or burn onto the contact tip of my LORCH Welding System?
    • P
      Patrick GallagherSep 7, 2025
      If the wire is sticking or burnt onto the contact tip of your LORCH Welding System, it could be: * The wire electrode is jammed on the reel. Check and replace if necessary. * There is a burr at the start of the wire. Trim the end of the wire.
  • M
    Mr. John AllenSep 9, 2025
    How to remove an arc or short circuit between the contact tip and gas nozzle on my LORCH M-Pro Performance Welding System?
    • X
      xblanchardSep 9, 2025
      If there's an arc or short circuit between the contact tip and gas nozzle on your LORCH Welding System, a spatter bridge may have formed between them. Remove it using suitable special pliers.

Summary

Machine Elements

Explanation of Symbols

Meaning of Symbols in Operation Manual

Explains symbols found within the text of the operation manual.

Meaning of Symbols on Machine

Explains symbols directly displayed on the welding machine itself.

Safety Precautions

General Regulation of Use

Unit Protection

Noise Emission

Ambient Conditions

UVV Inspection

Electromagnetic Compatibility (EMC)

Setup and Transport

Brief Operating Instructions

Before Start-up

Connecting the Torch

Guides the user on how to properly connect the welding torch to the machine.

Connecting the Ground Cable

Details the procedure for connecting the ground cable to the workpiece.

Fastening the Ground Clamp

Explains the correct method for attaching the ground clamp for optimal connection.

Insert the Welding Wire Spool

Instructions on how to load the welding wire spool into the wire feed unit.

Thread the Wire Electrode In

Step-by-step guide for feeding the welding wire through the torch.

Connecting the Inert Gas Cylinder

Procedures for safely connecting the inert gas cylinder to the welding system.

Changing the Wire Electrode

Instructions on selecting and replacing wire feed rollers and electrodes.

Start-up

Control Console

Overview of the buttons, knobs, and displays on the welding machine's control panel.

Start-up

Detailed steps for powering on and performing initial configuration before welding.

Current;Voltage Display

Explains how welding current and voltage values are displayed during and after welding.

Torch with Remote Control

Information on using the torch's remote control features for adjustments.

Deactivate Operation Mode

How to disable specific operation modes like spot or interval welding.

Characteristic Line

Guide to selecting and setting characteristic lines for different welding materials and gases.

Mode Manual

Instructions for operating the machine in manual mode, independent of characteristic lines.

Secondary Parameters

How to access and adjust secondary welding parameters for fine-tuning.

Tiptronic

Explanation of the Tiptronic function for saving and recalling welding jobs.

Special Functions

Details on special functions such as gas testing and panel testing.

Reset Setting

Procedures for resetting machine parameters to factory default settings.

Menu Structure

Troubleshooting

Repair and Maintenance

Check Regularly

Points to inspect for damage before starting the welding machine.

Torch Care

Instructions for cleaning and maintaining the welding torch to prevent spatter buildup.

Technical Data

Options and Accessories

Torch Sets

Catalog of recommended torch sets compatible with different machine types.

Torch Holder

Details about the assembly and part numbers for torch holders.

Disposal

Service

Declaration of Conformity

Spare Parts List

Wire Feed Unit VE 42 Typ 37 SF

Detailed parts list for the wire feed unit model VE 42 Typ 37 SF.

Drawing; Graph

Exploded views and diagrams of the machine components for parts identification.

M-Pro 200 CuSi Performance

Specific spare parts list for the M-Pro 200 CuSi Performance model.

M-Pro 250 Performance (c)

Specific spare parts list for the M-Pro 250 Performance (c) model.

M-Pro 300 Performance (c)

Specific spare parts list for the M-Pro 300 Performance (c) model.

Wiring Diagram; Schematic

M-Pro 200 CuSi Performance

Electrical schematic for the M-Pro 200 CuSi Performance model.

M-Pro 250 Performance (c)

Electrical schematic for the M-Pro 250 Performance (c) model.

M-Pro 300 Performance (c)

Electrical schematic for the M-Pro 300 Performance (c) model.

LORCH M-Pro Performance Series Specifications

General IconGeneral
Input Voltage3 x 400 V
Protection ClassIP23
Power SupplyThree-phase
Weight35 kg
Welding ProcessMIG/MAG

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