WELDCO MMA140 Operator's Manual
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WELDCO MMA140 Operator's Manual

Inverter arc welder
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MMA140
Inverter Arc Welder
OPERATORS MANUAL
IMPORTANT:
This manual contains important information regarding safety, operation, maintenance and storage of this product.
Before use read carefully and understand all cautions, warnings, instructions and product labels. Failure to do so
could result in serious personal injury and/or property damage.

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Summary of Contents for WELDCO MMA140

  • Page 1 MMA140 Inverter Arc Welder OPERATORS MANUAL IMPORTANT: This manual contains important information regarding safety, operation, maintenance and storage of this product. Before use read carefully and understand all cautions, warnings, instructions and product labels. Failure to do so could result in serious personal injury and/or property damage.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Thank You For your Purchase ..............................3 Unpacking Your New Welder ................................. 3 Welding Hazards and Safety ............................... 4 Work Area ...................................... 4 Personal Protective Equipment and Clothing (PPE) ........................4 Electromagnetic and Radio Frequencies – “PACEMAKERS” ......................5 Pre-Checks ......................................

  • Page 3: Thank You For Your Purchase

    Weldco would like to thank you for purchasing the MMA140 Inverter Welder. This manual is designed to guide you through using your new machine. Your Weldco inverter welder utilizes the latest in welding technology to ensure you receive professional results in a variety of applications.

  • Page 4: Welding Hazards And Safety

    Welding poses a variety of hazards to health and safety. Please ensure you have correct safety equipment for yourself and those within the welding area. Your local distributor will be able to assist you with the correct Weldco protective helmet and gloves.

  • Page 5: Electromagnetic And Radio Frequencies - "Pacemakers

    ELECTROMAGNETIC AND RADIO FREQUENCIES – “PACEMAKERS” • Avoid contact with the energized work piece. • Always ensure you have adequate protection from electrocution and burns. • Since the welder owns strong electromagnetic and radio frequencies. Persons fitted with “PACEMAKERS” or similar devices MUST consult their doctor before turning on the welder.

  • Page 6: Technical Description

    INPUT PLUG The MMA140 is fitted with a 10amp plug. This machine is designed to work with 10amp domestic wall sockets. It is important that the machine is plugged directly into the mains plug. If an extension cord must be used a minimum 2.5mm wire thickness is require and no more than 10m in length.

  • Page 7: Machine Layout

    MACHINE LAYOUT Front 1. Amperage Adjustment Dial 2. Thermal Overload light 3. Amperage Display 4. Welding Type Selector 5. Positive Terminal 6. Negative Terminal 7. ARC MMA Indicator Light 8. Lift TIG Indicator Light 9. VRD Indicator Rear 10. 10amp 230volt Input Plug 11.

  • Page 8: Mma (Stick) Welding Setup

    SET UP FOR MMA (STICK) WELDING Please ensure you have all relevant safety equipment and PPE ready. This setup is for the most common electrode positive setting for General purpose rods. Please check your electrode packaging to confirm. 1. Connect the Earth clamp cable into the NEGATIVE terminal on the front of the machine. Connect the Earth clamp to the work piece.
  • Page 9 (4) to select MMA. 5. Your Weldco Inverter welder is fitted with a “Voltage Reduction Device” (VRD). The VRD reduces the open circuit voltage to safer levels. The VRD default is OFF. To activate this feature press and hold the welding process button (4) for 3-5 second until the VRD light is activated.

  • Page 10: Dc Lift Tig Welding Setup

    Failure to do so will reduce your welding performance. 2. Connect the Optional Weldco VALVE Tig Torch (WDC0818) into the NEGATIVE terminal on the front of the machine. Ensure that the plug is secure in the socket to reduce any chance of arcing from loose connection 3.
  • Page 11 5. Once the machine has powered up the default setting is for MMA press the welding type selector (4) to select TIG. 6. Your Weldco Inverter welder is fitted with a “Voltage Reduction Device” (VRD). The VRD is not used for TIG welding.

  • Page 12: Maintenance

    During this time should your Weldco power source fail please contact your authorized Weldco distributor. This warranty does not cover freight or goods serviced by un-authorized personnel. Weldco NZ will inspect your power source for faulty material or workmanship and will only be replaced if repair is not possible.

  • Page 13: Troubleshooting

    The power indicator light will not turn on. Allow the machine to rest for a few minutes and normal operation should continue. If this does not rectify the issue, please contact your approved WELDCO Technician.

  • Page 14: Notes

    NOTES:...
  • Page 15 NOTES:...
  • Page 16 WELDCO NEW ZEALAND Christchurch 8024 New Zealand www.weldco.co.nz Made in China © 2021...

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