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Weldforce 155
175
M &
MST
Weldforce 155M
Weldforce 175MST
OPERATING INSTRUCTIONS
Edition 2.6
IMPORTANT!
To qualify for extended warranty, you must register within 30 days of purchase. See inside for details.
Read these Operating Instructions Completely before attempting to use this machine. Save this manual and
keep it handy for quick reference. Pay particular attention to the safety instructions we have provided for
your protection. Contact your distributor if you do not fully understand anything in this manual.
© Weldclass 2020 | E.&O.E.
1
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Table of Contents
Troubleshooting
Related Manuals for Weldclass Weldforce 175MST
Summarization of Contents
OPERATING INSTRUCTIONS
Register Your Warranty Now
Instructions for registering the product to qualify for an extended warranty.
Satisfaction Guarantee
Details regarding the product's satisfaction guarantee policy.
BASIC SPECIFICATIONS
MIG Welding Specifications
Technical specifications for MIG welding capabilities of the machine.
Stick (MMA) Welding Specifications
Technical specifications for Stick (MMA) welding capabilities.
TIG Welding Specifications
Technical specifications for TIG welding capabilities of the machine.
KNOW YOUR MACHINE
Machine Front Panel
Identification of components located on the front panel of the welding machine.
Machine Rear Panel
Identification of components located on the rear panel of the welding machine.
Control Panel Overview
Explanation of the controls and indicators on the welding machine's panel.
Symbols Chart
Key to understanding the various symbols used throughout the manual.
CONTROLS EXPLAINED
Weld Process Selection
How to select the welding process (MIG, MMA, TIG) on the machine.
Welding Power Output Control
Explanation of how to adjust the welding power output using the control knob.
Inductance Control (MIG/MAG)
Description of the inductance adjustment for MIG/MAG welding.
Arc Force Adjustment (MMA/Stick)
Explanation of the arc force adjustment for MMA/Stick welding.
Error/Over Temperature Indicator Light
Details on the indicator light for errors or overheating.
POWER SUPPLY
Electrical Connection
Information on connecting the welding machine to the power supply.
Extension Leads
Guidelines for using extension cords with the welding machine.
Generator Use
Recommendations and precautions for operating the welder with a generator.
OPERATING ENVIRONMENT
Location Requirements
Guidance on the suitable operating environment for the welding machine.
Ventilation Needs
Importance and requirements for adequate ventilation for the machine.
BASIC OPERATION
MIG Welding Setup
Step-by-step guide for setting up the machine for MIG welding.
Loading Wire Feeder
Instructions on how to load wire into the feeder mechanism.
Gasless Welding Setup
Procedure for setting up the machine for gasless MIG welding.
Gas MIG Welding Setup
Procedure for setting up the machine for MIG welding with shielding gas.
Additional Setup for Aluminium
Specific setup steps for welding aluminium with MIG.
Settings for MIG Welding
Recommended settings for various MIG welding applications.
Drive Rollers & Torch Liners
Information on selecting and using drive rollers and torch liners.
Stick (MMA) Welding Operation
Guide on how to perform Stick (MMA) welding with the machine.
Lift TIG Operation
Instructions for performing Lift TIG welding with the machine.
ACCESSORIES, SPARE PARTS & CIRCUIT DIAGRAMS
MIG Torch and Spares for Weldforce 155M
Details on the MIG torch and its spare parts for the 155M model.
MIG Torch and Spares for Weldforce 175M
Details on the MIG torch and its spare parts for the 175M model.
TIG Torch and Spares
Information on the TIG torch and its compatible spare parts.
Optional Accessories
List and description of optional accessories available for the welder.
Drive Rollers
Details on the different types of drive rollers for various wires.
Machine Spare Parts
List of available spare parts for the welding machine.
Primary Schematic Circuit Diagram
Diagram illustrating the primary electrical schematic of the welder.
CARE & MAINTENANCE
Keep Machine in Top Condition
Recommendations for maintaining the welding machine's performance.
Storing the Welder
Proper procedures for storing the welding machine when not in use.
GENERAL GUIDE TO WELDING
Duty Cycle Rating
Explanation of the machine's duty cycle and its influencing factors.
Stick (MMA) Process Overview
Introduction to the Stick (MMA) welding process and its characteristics.
TIG Process Overview
Introduction to the TIG welding process and its characteristics.
MIG Process Overview
Introduction to the MIG welding process and its characteristics.
Joint Preparations
Methods and considerations for preparing joints before welding.
MIG BASIC WELDING GUIDE
MIG Basic Welding Techniques
Fundamental techniques for performing MIG welding.
Gas Metal Arc Welding (GMAW)
Detailed explanation of the GMAW (MIG) welding process.
Flux Cored Arc Welding (FCAW)
Detailed explanation of the FCAW (Flux Cored) welding process.
Position of MIG Torch
Guidance on the correct torch position for MIG welding.
Distance from Nozzle to Work Piece
Recommended distance between the MIG torch nozzle and workpiece.
Travel Speed
Importance and adjustment of travel speed in MIG welding.
MIG Welding Variables
Key variables that control the MIG welding process.
Establishing Arc and Making Weld Beads
Steps for establishing the arc and creating weld beads.
MIG Output Settings
Guidance on setting the output parameters for MIG welding.
Welding Wire Size Selection
Factors to consider when selecting welding wire size.
MIG Welding Troubleshooting
Common problems and solutions for MIG welding.
STICK (MMA) BASIC WELDING GUIDE
Electrode Size and Storage
Information on selecting and properly storing welding electrodes.
Electrode Polarity
Understanding and setting the correct electrode polarity.
Effects on Various Materials
How stick welding affects different types of metals.
Types of Electrodes
Classification and description of different electrode types.
Suggested Settings
Recommended settings for typical Stick (MMA) welding applications.
MMA Welding Techniques
Practical techniques for performing MMA (Stick) welding.
Making Welded Joints
Methods for creating various types of welded joints.
MMA (Stick) Troubleshooting
Common problems and solutions for MMA (Stick) welding.
TIG BASIC WELDING GUIDE
TIG Electrode Selection and Preparation
Guidance on selecting and preparing tungsten electrodes.
Preparing Tungsten for DCEN
Specific steps for preparing tungsten for DCEN TIG welding.
Shielding Gas for TIG Welding
Selection of appropriate shielding gases for TIG welding.
Typical TIG Welding Settings
Recommended settings for TIG welding on steel.
TIG Welding Troubleshooting
Common problems and solutions for TIG welding.
SAFETY
Store and Retain this Manual
Importance of keeping the manual for reference and safety.
Important Safety Information
General safety warnings and hazard symbols explained.
Welding Operation Procedures
Key safety procedures to follow during welding operation.
Personal Safety
Guidelines for ensuring personal safety while welding.
Arc Rays can Burn Eyes and Skin
Protection measures against hazards from welding arc rays.
Work Environment Safety
Safety considerations for the welding work area.
Noise Can Damage Hearing
Precautions to take to prevent hearing damage from welding noise.
Electricity Can Kill
Warnings and precautions related to electrical hazards.
Fumes And Gases
Health hazards associated with welding fumes and gases.
Fire & Explosive Risks
Safety measures to prevent fires and explosions during welding.
Sparks & Hot Metal
Precautions regarding sparks, hot metal, and slag.
Gas Cylinders
Safety guidelines for handling and using gas cylinders.
WARRANTY
Warranty Information
Details on the warranty period and terms and conditions.
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