1. Introduction
The Stayer MIG 165 MULTI is a versatile and professional electronic welding equipment designed for various welding processes, including MIG-MAG, tubular wire (Flux Core), TIG Lift Arc, and MMA (coated electrode) welding. This manual provides essential information for the safe and efficient operation, setup, and maintenance of your welding machine.
Figure 1: Stayer MIG 165 MULTI Professional Welding Equipment.
2. Safety Information
Always prioritize safety when operating welding equipment. Failure to follow safety guidelines can result in serious injury or death. Read and understand all warnings and instructions before use.
- Electric Shock Can Kill: Ensure proper grounding. Do not touch live electrical parts. Wear dry welding gloves and protective clothing.
- Fumes and Gases Can Be Dangerous: Work in a well-ventilated area. Use fume extractors if necessary. Keep your head out of the fumes.
- Welding Rays Can Burn Eyes and Skin: Always wear a welding helmet with appropriate shade filter. Protect exposed skin with flame-resistant clothing.
- Fire and Explosion Hazard: Keep flammable materials away from the welding area. Have a fire extinguisher readily available.
- Hot Parts Can Cause Severe Burns: Allow welded materials and equipment to cool before handling.
- Magnetic Fields: Pacemaker wearers should consult their doctor before operating welding equipment.
3. Package Contents
Upon unpacking, verify that all components are present and undamaged. If any items are missing or damaged, contact your supplier immediately.
Figure 2: Diagram illustrating the main components and standard equipment.
The standard package includes:
- Stayer MIG 165 MULTI Welding Machine
- Power Cable (2 m x 2.5 mm²)
- Ground Cable with Clamp (1.5 m x 16 mm²)
- Electrode Cable with Pure Copper Clamp (2.5 m x 16 mm²)
- Wire Torch 15AK/3m
- User Manual and Warranty Information
4. Product Features
The Stayer MIG 165 MULTI is engineered for professional performance and versatility:
- Multi-Process Capability: Supports MIG-MAG, Flux Core (tubular wire), TIG Lift Arc, and MMA (coated electrode) welding.
- Professional Duty Cycle: Features a 60% professional duty cycle, ensuring reliable performance for extended periods.
- Automatic Configuration: Automatically adapts to the selected welding type (MMA, TIG Lift Arc, MIG, MAG, Flux Core) via the front panel.
- High Open Circuit Voltage: 65 V DC for MIG/MAG and MMA welding, and 18 V DC for TIG Lift Arc.
- Wire Spool Capacity: Professional spool holder accommodates spools up to 5 kg.
- Precision Wire Feed Mechanism: Compatible with 0.6 mm, 0.8 mm, and 0.9 mm wire diameters.
- Easy Analog Controls: Classic analog controls for precise adjustment of current, voltage, and wire speed.
- Generator Compatibility: Suitable for use with generators, tolerating +/- 15% variation on 230 V.
- Robust and Compact Design: Built to withstand demanding work environments, featuring an ergonomic carrying handle.
- Compliance: Exceeds European specifications 2011/65/EU, 2014/35/EU, 2014/30/EU, and EN 60974.
5. Setup
5.1. Wire Spool Installation (MIG/MAG/Flux Core)
- Open the side panel of the welding machine to access the wire feeder compartment.
- Place the wire spool onto the spool holder, ensuring it rotates freely. The machine supports spools up to 5 kg.
- Thread the welding wire through the wire feed mechanism, ensuring it passes through the correct groove for the wire diameter (0.6 mm, 0.8 mm, or 0.9 mm).
- Close the wire feed roller tension arm and adjust the tension appropriately.
- Feed the wire into the torch liner until it emerges from the torch nozzle.
Figure 3: Proper installation of the welding wire spool.
5.2. Cable Connections
- Connect the ground clamp cable to the appropriate terminal on the front panel. For MIG/MAG, the ground clamp typically connects to the negative (-) terminal. For MMA, it usually connects to the positive (+) terminal.
- Connect the electrode holder cable (for MMA) or the TIG torch (for TIG Lift Arc) to its respective terminal.
- For MIG/MAG welding, connect the MIG torch to the designated connector.
- If using shielding gas for MIG/MAG or TIG, connect the gas hose from your gas cylinder regulator to the gas inlet on the machine.
- Connect the power cable to a suitable 230V AC power outlet. Ensure the power source can handle the machine's input current.
Figure 4: Example of MIG-MAG cable connections. Note the positive (+) and negative (-) terminals for different processes.
6. Operating Instructions
The MIG 165 MULTI allows for easy selection of welding processes via the front panel controls.
6.1. MIG/MAG Welding (Gas Shielded)
MIG (Metal Inert Gas) uses inert gas like Argon (Ar) for aluminum welding. MAG (Metal Active Gas) uses active gas like Ar + CO2 for carbon steel and stainless steel welding.
- Ensure the correct wire spool is installed and the gas cylinder is connected and open.
- Select "MIG" or "MAG" mode on the front panel.
- Connect the ground clamp to the workpiece (typically to the negative terminal on the machine).
- Adjust the welding current (amperage), voltage, and wire feed speed using the analog controls. Refer to welding charts for recommended settings based on material thickness and wire type.
- Initiate the arc by pressing the torch trigger.
6.2. Flux Core Welding (Gasless MIG)
Flux Core welding uses a special tubular wire that contains flux, eliminating the need for external shielding gas.
- Install a flux core wire spool. Ensure no gas cylinder is connected or that the gas valve is closed.
- Select "FLUX" mode on the front panel.
- Connect the ground clamp to the workpiece.
- Adjust current, voltage, and wire feed speed.
- Initiate the arc by pressing the torch trigger.
6.3. TIG Lift Arc Welding
TIG Lift Arc welding uses a tungsten electrode and requires an inert shielding gas (e.g., Argon). The maximum tungsten electrode diameter is 2.4 mm.
- Connect the TIG torch to the negative (-) terminal and the ground clamp to the positive (+) terminal on the machine.
- Connect the Argon gas cylinder and open the valve.
- Select "TIG LIFT ARC" mode.
- Adjust the welding current.
- To start the arc, gently touch the tungsten electrode to the workpiece and then lift it slightly. The arc will initiate.
Figure 5: TIG Lift Arc welding in action, demonstrating the process.
6.4. MMA (Stick) Welding
MMA welding uses coated electrodes.
- Connect the electrode holder cable to the positive (+) terminal and the ground clamp cable to the negative (-) terminal (or vice-versa depending on electrode polarity requirements).
- Select "MMA" mode.
- Insert the appropriate electrode into the holder.
- Adjust the welding current based on the electrode type and diameter.
- Strike the electrode against the workpiece to initiate the arc.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your welding equipment.
- Cleaning: Periodically clean the machine's exterior with a dry cloth. Use compressed air to blow out dust and debris from cooling vents. Ensure the machine is unplugged before cleaning.
- Cable Inspection: Regularly inspect all cables (power, ground, electrode, torch) for cuts, fraying, or damage. Replace damaged cables immediately.
- Wire Feed Mechanism: Keep the wire feed rollers clean and free of debris. Check for wear and replace if necessary to ensure consistent wire feeding.
- Torch Maintenance: For MIG torches, regularly clean or replace contact tips, gas nozzles, and diffusers. For TIG torches, ensure the tungsten electrode is sharp and clean.
- Storage: Store the welding machine in a dry, clean environment, away from excessive dust and moisture.
8. Troubleshooting
This section addresses common issues you might encounter. For problems not listed here, contact qualified service personnel.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to machine | Power cable unplugged, circuit breaker tripped, faulty power switch | Check power connection, reset circuit breaker, contact service if switch is faulty |
| No arc/Poor arc start | Improper ground connection, incorrect settings, worn electrode/contact tip, wrong polarity | Ensure good ground, adjust settings, replace consumables, check polarity |
| Wire feed issues (MIG/Flux) | Incorrect wire tension, clogged liner, wrong drive roller size, tangled wire spool | Adjust tension, clean/replace liner, ensure correct roller, untangle spool |
| Overheating/Thermal overload | Exceeding duty cycle, blocked ventilation, high ambient temperature | Allow machine to cool, clear vents, work in cooler environment |
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | 1.2688 |
| Manufacturer | STAYER |
| Dimensions (Package) | 52.29 x 35.2 x 32.1 cm |
| Weight | 11.53 kg |
| Power Type | AC |
| Open Circuit Voltage (MIG/MAG/MMA) | 65 V DC |
| Open Circuit Voltage (TIG Lift Arc) | 18 V DC |
| Max TIG Tungsten Electrode Diameter | 2.4 mm |
| Wire Spool Capacity | Up to 5 kg |
| Compatible Wire Diameters | 0.6 mm / 0.8 mm / 0.9 mm |
| Generator Tolerance | +/- 15% on 230 V |
| Included Components | Welding equipment, power cable, ground cable with clamp, electrode cable with clamp, manual, warranty, wire torch 15AK/3m. |
10. Warranty and Support
This product comes with a manufacturer's warranty. Please refer to the included warranty information card for details regarding coverage, terms, and conditions. Keep your purchase receipt as proof of purchase.
For technical support, spare parts, or warranty claims, please contact Stayer customer service or your authorized dealer. Contact information can typically be found on the manufacturer's website or in the warranty documentation.
Manufacturer: STAYER
Model: MIG 165 MULTI (1.2688)
Information regarding spare parts availability is currently unavailable.
