AZZUNO MIG-155L Aluminum MIG Welder User Manual

1. Introduction and Overview

The AZZUNO MIG-155L is a versatile 5-in-1 multiprocess welding machine designed for a wide range of welding applications. It supports Gas MIG, Aluminum MIG, Gasless Flux Core MIG, Lift TIG, and Stick welding. This machine operates on both 110V and 220V input power, offering flexibility for various work environments. Its intuitive controls and robust design make it suitable for both hobbyists and professionals.

Figure 1: AZZUNO MIG-155L Multiprocess Welder

2. Key Features

• 5-in-1 Multiprocess Welding: Supports Gas MIG, Aluminum MIG, Gasless Flux Core MIG, Lift TIG, and Stick welding.
• Dual Voltage Capability: Compatible with both 110V and 220V power inputs.
• Simplified Aluminum MIG Welding: Engineered for effortless aluminum MIG welding without requiring a Teflon liner or Spool Gun.
• Large Clear LED Display: Upgraded oversized LED screen for crystal-clear visibility and intuitive operation.
• Smart & Flexible MIG Welding: Features SYNERGIC mode for automatic setting adjustments, 2T/4T/SPOT for various weld types, and a manual wire feed button.
• Enhanced Stick Welding Control: Offers adjustable VRD, Arc Force, and Hot Start settings for safer and more stable arc performance.
• Portable Design: Compact size (5.7"×15"×8.8") and lightweight (13 lbs) for easy transport.

Figure 2: Five Welding Modes of the MIG-155L

Figure 3: Large LED Display for Easy Operation

3. Package Contents and Accessories

Upon unpacking, please verify that all the following items are included:

• AZZUNO MIG-155L Welder Machine ×1
• 0.030" Flux Cored Wire ×1
• 14AK MIG Torch ×1
• Electrode Holder ×1
• Ground Clamp ×1
• Gas Hose ×1
• Hose Band ×2
• Contact Tips ×2
• V-groove Drive Roller ×1
• U-groove Drive Roller ×1
• Brush & Hammer ×1
• 110V~220V Adapter ×1
• User Manual ×1

Figure 4: Included Accessories

4. Setup

4.1 Connecting Components

Familiarize yourself with the connection points on the welder's front panel:

• MIG Torch Connector
• 2-pin Plug
• "+" Terminal
• "-" Terminal
• Polarity Conversion
• Gas Connector

Figure 5: Front Panel Introduction

4.2 Wire Feeding System

The MIG-155L supports various wire types. Ensure the correct drive roller is installed for your chosen wire:

• K-groove: For FLUX welding wire.
• V-groove: For SOLID welding wire.
• U-groove: For ALUMINUM welding wire (AlMg5356).

To load wire, open the side panel, place the wire spool on the spindle, and feed the wire through the drive roller mechanism into the MIG torch liner. Ensure the tension is appropriate to prevent tangling or slipping.

Figure 6: Wire Feeding System and Drive Rollers

4.3 Welding Mode Connections

Connect your welding accessories according to the desired welding mode:

• Gasless MIG: Connect the MIG torch and ground clamp as shown. No gas connection is needed.
• Gas MIG: Connect the MIG torch, ground clamp, and gas hose to a suitable gas cylinder.
• Lift TIG: Connect the electrode holder and ground clamp. A TIG torch (not included) is required for this mode.
• Stick: Connect the electrode holder and ground clamp.

Figure 7: Connection Diagrams for Different Welding Modes

5. Operating Instructions

5.1 Control Panel Overview

The large LED display and control knob provide clear feedback and easy adjustment of welding parameters.

Figure 8: Control Panel Functions

• Fast Wire Feeding: Button 'a' for quick wire advancement.
• Welding Mode Choose/SYN: Button 'b' to select welding mode and activate Synergic control.
• Stick Functions Select; Voltage and Amp Adjust: Knob 'c' for adjusting parameters and selecting Stick functions.
• 2T/4T/SPOT: Buttons 'd' for trigger modes.

5.2 SYNERGIC Control

The SYNERGIC mode automatically adjusts voltage and wire feeding speed for optimal performance. To activate:

1. Press and hold button "A" (Welding Mode Choose/SYN) for 3 seconds to turn on SYN.
2. Choose the desired welding mode.
3. Slightly adjust the current using the main knob.

Figure 9: SYNERGIC Control Activation

5.3 2T/4T/SPOT Settings

These settings cater to diverse welding requirements:

• 2T (Two-Touch): Hold the trigger to weld, release to stop.
• 4T (Four-Touch): Press and release to start, press and release again to stop. Ideal for long welds.
• SPOT: For timed spot welds. Spot time can be adjusted.

Figure 10: 2T/4T/SPOT Trigger Modes

5.4 Aluminum MIG Welding

The MIG-155L simplifies aluminum MIG welding. It does not require changing to a Teflon liner or using a Spool Gun. For best results, use ER5356 AlMg wire with a recommended diameter of 0.040". Position the welding torch facing left and weld from right to left.

Figure 11: Simplified Aluminum MIG Welding

5.5 STICK Welding Control

In STICK welding mode, you can adjust VRD (Voltage Reduction Device), Arc Force, and Hot Start settings for safer, more efficient, and stable arc performance. This mode is compatible with electrode type E6013.

Figure 12: STICK Welding Functions

5.6 MIG Welding Parameters

Refer to the table below for recommended MIG welding parameters based on wire diameter and plate thickness:

Table 1: Recommended MIG Welding Parameters

6. Maintenance

Regular maintenance ensures the longevity and optimal performance of your AZZUNO MIG-155L welder.

• Cleaning: Regularly clean the machine's exterior and ventilation openings to prevent dust and debris buildup. Use a dry, soft cloth.
• Wire Feed System: Inspect the drive rollers and wire liner for wear or blockages. Clean as necessary to ensure smooth wire feeding.
• Contact Tips and Nozzles: Replace worn contact tips and clean nozzles regularly to maintain arc stability and weld quality.
• Cable Connections: Ensure all cable connections are secure and free from damage.
• Storage: Store the welder in a dry, clean environment when not in use.

7. Troubleshooting

Here are answers to some frequently asked questions regarding the AZZUNO MIG-155L:

Q: Is the TIG torch included, and which model of TIG torch is compatible?

A: The machine does not include a TIG torch. The compatible TIG torch model for this welding machine is WP-17V (10-25mm²).

Q: Does the MIG gun liner need to be changed when welding aluminum?

A: The MIG gun liner does not need to be changed when welding aluminum with this machine, eliminating the hassle of liner replacement.

Q: Can 10LBS wire be used?

A: No, this machine is suitable for 1LB~2LBS wire.

Figure 13: TIG Torch Compatibility Information

Figure 14: Aluminum Welding Liner Information

8. Specifications

9. Warranty and Support

For warranty information, technical support, or service inquiries, please contact AZZUNO customer service directly. Refer to the contact details provided in your product packaging or visit the official AZZUNO website.