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FORCE 160MST
FORCE 180MST
OPERATING INSTRUCTIONS
IMPORTANT!
To qualify for full extended warranty, you must register within 30 days
of purchase. See inside for details.
MK2
MK2

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Table of Contents
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Summary of Contents for Weldclass FORCE 160MST MK2

  • Page 1 FORCE 160MST FORCE 180MST OPERATING INSTRUCTIONS IMPORTANT! To qualify for full extended warranty, you must register within 30 days of purchase. See inside for details.
  • Page 2 Congratulations & thank you for choosing Weldclass The Force range from Weldclass provides market leading value, features and durability. Force machines have been designed with emphasis on robust construction, with simple and functional operation. Register Your Warranty Now Standard warranty without registration is 12 months. To qualify for an extended full 24 month warranty your purchase you must register within 30 days of purchase.
  • Page 3: Table Of Contents

    FORCE 160MST & 180MST Contents Know Your Machine ....................5 Controls Explained ....................5 Power Supply ....................... 6 Operating Environment ..................6 Welding Settings ...................... 9 Tips & Tricks ........................9 Accessories & Spare Parts ................10 Care & Maintenance ....................
  • Page 4 Specifications Specifications 160MST 180MST MIG: 40-160A MIG: 40-180A Output Power ARC/TIG: 30-140A ARC/TIG: 30-160A MIG: 130A @ 60% MIG: 144A @ 60% Duty Cycle ARC/TIG: 120A @ 60% ARC/TIG: 128A @ 60% MIG Wire Size 0.6, 0.8, 0.9mm 0.6, 0.8, 0.9mm MMA Electrode Size 1.6 –...
  • Page 5: Know Your Machine

    FORCE 160MST & 180MST Know Your Machine MIG Torch Euro Connection LCD current meter - Displays output current (amps) in real time LCD Voltage meter - Displays output voltage in real time Welding voltage adjustment knob - Adjusts welding voltage in MIG mode MIG wire feed speed adjustment knob/ Arc (Stick / TIG) current adjustment knob Overload Indicator Lamp...
  • Page 6: Power Supply

    MIG Welding Mode Overload Indicator Lamp The MIG voltage control is essentially the power in Lights when duty cycle is exceeded and thermal the welding arc that sets the heat. The wire speed protection is activated. When thermal protection is feed simply controls the rate at which the welding activated, welding output will be disabled until wire is fed into the weld pool.
  • Page 7 FORCE 160MST & 180MST MIG Welding Operation through the wire drive inlet guide (18), through the drive roller groove and into the 1. Fitting Wire Spool outlet wire guide tube. Ensuring that the wire is correctly seated in the drive roller groove, 1.1 Open wire feeder compartment door.
  • Page 8 MIG welding with Aluminium socket (11). For tips and tricks on setting up for MIG welding Aluminium, go to: www.weldclass.com.au/alumig NOTE: This polarity connection configuration is valid for most GP (General Purpose) MMA electrodes. There are variances to this. If in doubt, check the electrode 5.
  • Page 9: Welding Settings

    FORCE 160MST & 180MST 8.1 Connect the earth cable quick connector 8.5 Select the required output current using the to the positive welding power output socket current control knob (5). You are now ready to (11). Connect the earth clamp to the work weld! piece.
  • Page 10: Accessories & Spare Parts

    The MIG Torch supplied with the 180MST is a BZL 25 (Binzel 25 style) model. To view parts for this torch, go to: www.weldclass.com.au/BZL25 TIG Torch (Optional Extra): The compatible TIG torch for this machine is Weldclass 9/17 torch with valve. To view this torch, go to: www.weldclass.com.au/TigTorch917v Machine Spare Parts: For machine parts, go to www.weldclass.com.au/machines or contact...
  • Page 11: Care & Maintenance

    FORCE 160MST & 180MST Care & Maintenance Storing the Welder When not in use the welder should be stored in the Keep your Welding Machine in Top dry and frost-free environment. Condition The Force range does not require any special WARNING! maintenance, however the user should take care Before...
  • Page 12 Gas Metal Arc Welding (GMAW) Position of MIG Torch (Fig 1-3) This process, also known as MIG welding, CO2 welding, Micro Wire Welding, short arc welding, dip transfer welding, wire welding etc., is an electric arc welding process which fuses together the parts to be welded by heating them with an arc between a solid continuous, consumable electrode and the work.
  • Page 13 FORCE 160MST & 180MST Primary Adjustable Variables Vertical Fillet Welds (Fig 1-6) to 20 Longitudinal Angle These control the process after preselected variables have been found. They control the Longitudinal Angle penetration, bead width, bead height, arc stability, deposition rate and weld soundness. to 60 These variables are: to 60...
  • Page 14 Whether the operator is left handed or right handed has to be considered to realize the effects of each angle in relation to the direction of travel. Nozzle Angle, Right Handed Operator (Fig 1-10) Direction of Travel Leading or “Pushing” Trailing or “Pulling”...
  • Page 15: Mig Welding Troubleshooting

    FORCE 160MST & 180MST MIG Welding When there is a gas problem the result is usually porosity within the weld metal. Porosity always Troubleshooting stems from some contaminant within the molten weld pool which is in the process of escaping during solidification of the molten metal.
  • Page 16 Other weld problems can be reduced by checking the following points.
  • Page 17: Mma (Stick) Basic Welding Guide

    FORCE 160MST & 180MST MMA (Stick) Basic Flat Position, Down Hand Butt Weld Welding Guide (Fig 1-11) Size of Electrodes The electrode size is determined by the thickness Flat Position, of metals being joined and can also be governed Gravity Fillet Weld by the type of welding machine available.
  • Page 18 brittleness, generally cracks when attempts are between the pieces being joined to ensure proper made to weld it. Trouble may also be experienced penetration of the weld metal and to produce when welding white-heart malleable, due to the sound joints. In general, surfaces being welded porosity caused by gas held in this type of iron.
  • Page 19 FORCE 160MST & 180MST MMA Welding Techniques Corner Weld - A Word for Beginners (Fig 1-19g) For those who have not yet done any welding, the simplest way to commence is to run beads on a piece of scrap plate. Use mild steel plate about 6.0mm thick and a 3.2mm electrode.
  • Page 20 Making Welded Joints the electrode slowly along as it melts down. Having attained some skill in the handling of an Another difficulty you may meet is the tendency, electrode, you will be ready to go on to make up after the arc is struck, to withdraw the electrode so welded joints.
  • Page 21 FORCE 160MST & 180MST Heavy plate will require several runs to complete the joint. After completing the first run, chip the Multi-Runs in HV Fillet Weld (Fig 1-24) slag out and clean the weld with a wire brush. It is important to do this to prevent slag being trapped by the second run.
  • Page 22 iron at right angles to another piece of waste pipe. Examples of Vertical Fillet Welds Then tack this to the work bench or hold in a vice (Fig 1-27) so that the specimen is positioned in the overhead CORRECT INCORRECT position as shown in the sketch.
  • Page 23: Mma (Stick) Troubleshooting

    FORCE 160MST & 180MST MMA (Stick) Troubleshooting...
  • Page 24: Tig Basic Welding Guide

    TIG Basic Welding Guide TIG Welding is a fusion procedure that uses an electric ARC created between an infusible tungsten electrode and base material to be welded. For TIG welding an inert gas must be used (Argon) which protects the welding bead. If filling material is used, it is made up of rods suitable to the material to be welded (steel, stainless steel, copper etc).
  • Page 25 FORCE 160MST & 180MST (Fig 16-3) ARC Welder Point Grinding Wheel Radial Ground Wrong Tungsten Preparation - Wandering ARC Diameter of the flat determines amperage capacity. (Fig 17) Pointing the Electrode The electrode should be pointed according to the welding current.
  • Page 26: Tig Welding Troubleshooting

    TIG Welding Troubleshooting...
  • Page 27: Knowledge & Resources

    MIG Welding Operation 1. Maintain labels and nameplates on the Resources welder. These carry important information. If unreadable or missing, contact Weldclass for a Please refer to Weldclass website replacement. www.weldclass.com.au for more information. 2. Avoid unintentional starting. Make sure the...
  • Page 28 10. Transportation Methods. Lift unit with DANGER! the handles provided, or use a handcart or Always wear AS/NZS compliant safety glasses similar device of adequate capacity. If using a and full face shield fitted with appropriate filter fork lift vehicle, secure the unit to a skid before shade number.
  • Page 29 FORCE 160MST & 180MST Use protective screens or barriers to protect Do not apply heat to a container that has others from flash and glare; warn others not to held an unknown substance or a combustible watch the arc. material whose contents, when heated, can produce flammable or explosive vapours.
  • Page 30 11. Do not touch the electrode while in contact Use a Welding Helmet or Welding Face Shield with the work (ground) circuit. fitted with a proper shade of filter (see AS 60974-1, AS/NZS 1337.1 and AS/NZS 1338.1 12. Use only well-maintained equipment. Repair Safety Standards) to protect your face and or replace damaged parts as soon as practical.
  • Page 31: Warranty

    Be aware that welding on a ceiling, floor, WARRANTY bulkhead, or partition can cause fire on the hidden side. For full details on warranty period & terms and Do not weld on closed containers such as conditions, goto Weldclass.com.au/WarrantyInfo tanks or drums.

This manual is also suitable for:

Force 180mst mk2

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