Weldclass Weldforce 210MST Operating Instructions Manual
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Weldclass Weldforce 210MST Operating Instructions Manual

Synergic mig – stick – tig
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Weldforce 210
& 250
MST
MST
Weldforce 210MST & 250MST
Synergic MIG – Stick – TIG
OPERATING INSTRUCTIONS
Edition 2.7
IMPORTANT!
To qualify for full 24 month 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.
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Summary of Contents for Weldclass Weldforce 210MST

  • Page 1 Weldforce 210 & 250 Weldforce 210MST & 250MST Synergic MIG – Stick – TIG OPERATING INSTRUCTIONS Edition 2.7 IMPORTANT! To qualify for full 24 month 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.
  • Page 2 Congratulations & thank you for choosing Weldclass! The Weldforce range from Weldclass provides market leading value, features and durability. Register Your Warranty Now To qualify for an extended warranty, you must register within 30 days of purchase. Full details on warranty period and terms can be found at www.weldclass.com.au/WarrantyInfo...

  • Page 3: Table Of Contents

    Spot/Stitch Weld Time (SYN/MAN) ..................22 4.3.7 Metric/Imperial (SYN/MAN) ....................22 4.3.8 Machine Software Information (SYN/MAN)................23 4.3.9 Plug/Power Supply Selection (SYN/MAN) [Weldforce 210MST only] ........23 4.3.10 Hot Start Adjustment (MMA) ....................23 4.3.11 Arc Force Adjustment (MMA) ....................23 VRD Function (Stick) ........................23 Factory Reset ..........................24 Errors/Alarms ..........................24...
  • Page 4 The TIG Process ........................48 10.2.3 The MIG Process ........................48 10.3 Joint Preparations ........................49 MIG BASIC WELDING GUIDE ......................51 11.1 MIG Basic Welding Techniques ....................51 11.2 Gas Metal Arc Welding (GMAW) ....................51 11.3 Flux Cored Arc Welding (FCAW) ....................51 © Weldclass 2020 | E.&O.E.
  • Page 5 Suggested Settings for Typical Stick (MMA) Applications ............62 12.7 MMA Welding Techniques ......................63 12.7.1 A Word for Beginners ......................63 12.7.2 The Welder ...........................63 12.7.3 Striking the Arc ........................63 12.7.4 Arc Length ..........................64 12.7.5 Rate of Travel ........................64 12.8 Making Welded Joints ........................65 © Weldclass 2020 | E.&O.E.
  • Page 6 Work Environment Safety ....................79 15.4.5 Electricity Can Kill .........................79 15.4.6 Fumes And Gases .........................80 15.4.7 Fire & Explosive Risks ......................81 15.4.8 Sparks & Hot Metal ......................81 15.4.9 Gas Cylinders ........................82 WARRANTY ............................82 16.1 Warranty Information ........................82 © Weldclass 2020 | E.&O.E.

  • Page 7: Specifications

    Spool Size 100mm (1kg) & 200mm (4.5kg or 5kg) MIG Wire Sizes 0.6, 0.8, 0.9, 1.0mm Stick (MMA) Welding MMA Electrode Size 1.6 – 3.2mm TIG Welding TIG Tungsten Size 1.6 – 2.4mm Table 1 © Weldclass 2020 | E.&O.E.
  • Page 8 VRD on 78V / VRD off 15V TIG Welding Welding Current Output 20 – 130A Duty Cycle 130A / 15.2V @ 35% 100A / 14.0V @ 60% 80A / 13.2V @ 100% Nominal Open Circuit Voltage U Table 3 © Weldclass 2020 | E.&O.E.

  • Page 9: 250Mst Specifications

    Spool Size 200mm (4.5kg or 5kg) & 300mm (15kg) MIG Wire Sizes 0.8, 0.9, 1.0, 1.2mm Stick (MMA) Welding MMA Electrode Size 1.6 – 4.0mm TIG Welding TIG Tungsten Size 1.6 – 3.2mm Table 4 © Weldclass 2020 | E.&O.E.
  • Page 10 VRD off 60V / VRD on 15V TIG Welding Welding Current Output 20 – 180A Duty Cycle 180A / 17.2V @ 25% 130A / 15.2V @ 60% 100A / 14.0V @ 100% Nominal Open Circuit Voltage U Table 6 © Weldclass 2020 | E.&O.E.

  • Page 11: Know Your Machine

    14. Gas Inlet Connection 15. 240V AC Mains Power Input Lead Weldforce 210MST Figure 2 Weldforce 250MST 3.3 Machine Side 18. Positive (+) MIG Torch Power Connection 19. Negative (-) MIG Torch Power Connection Figure 3 © Weldclass 2020 | E.&O.E.

  • Page 12: Control Panel

    3.4 Control Panel 21. Top Selection Knob 22. Bottom Selection Knob 23. LCD Screen Figure 4 © Weldclass 2020 | E.&O.E.

  • Page 13: Lcd Readout

    29. Material Thickness Indicator 30. Inductance Setting Indicator 31. Amperage Setting 32. Voltage Setting 33. Wire Speed Setting 34. Soft Start Indicator 35. Inductance Indicator 36. Burnback Indicator 37. Post Gas Indicator Figure 5 Figure 6 © Weldclass 2020 | E.&O.E.

  • Page 14: Symbols Chart

    Soft Start Interference Warning Do not suspend Inductance Control from handle Inductance Control Radiation Hazard Single phase Burnback Control Inverter power source DC MIG (GMAW) Post Gas Control Function Stick/MMA Torch Trigger Mode (SMAW) Function © Weldclass 2020 | E.&O.E.
  • Page 15 Weldforce 210 & 250 TIG (GTAW) Positive Function Power Supply Hertz (cycles/sec) Connection Single Phase Duty Cycle Table 7 Direct Current (DC) – Negative © Weldclass 2020 | E.&O.E.

  • Page 16: Controls Explained

    4 CONTROLS EXPLAINED 4.1 Weld Process Selection 1. Press and hold the ‘Top Selection Knob’ (21) until the current Welding Process Indicator Lights (24) beings flashing. 3 sec Figure 7 2. Rotate the ‘Bottom Selection Knob’ (22) until the desired Welding Process Indicator Light (24) is flashing.

  • Page 17: Mig Synergic Program Selection

    2. Press and hold the ‘Bottom Selection Knob’ (22) for 3 seconds until the program number is displayed on the screen. 3 sec Figure 9 3. Rotate the ‘Bottom Selection Knob’ (22) until the desired Synergic MIG program is displayed. Figure 10 © Weldclass 2020 | E.&O.E.
  • Page 18 Argon + CO 0.9mm 1.0mm 0.8mm Aluminium Argon 0.9mm 1.0mm 0.8mm Gasless 0.9mm Flux Cored Steel 1.2mm 0.8mm 0.9mm Aluminium Bronze (CuAl) Argon (Ar) 1.0mm 0.8mm 0.9mm Silicone Bronze (CuSi) Argon (Ar) 1.0mm Table 8 © Weldclass 2020 | E.&O.E.
  • Page 19 Argon + CO Mixed Solid Steel (Fe) Argon + O Stainless Steel (Ss) Argon + CO Aluminium Argon (Ar) Gasless Flux Cored Steel Aluminium Bronze Argon (Ar) (CuAl) Silicone Bronze Argon (Ar) (CuSi) Table 9 © Weldclass 2020 | E.&O.E.

  • Page 20: Function Selection

    3 sec 3 sec Figure 11 2. Rotate the ‘Bottom Selection Knob’ (22) until the desired Menu/Function number is displayed. Figure 12 3. Press the ‘Bottom Selection Knob’ (22) to select desired Menu/Function. Figure 13 © Weldclass 2020 | E.&O.E.
  • Page 21 Weldforce 210 & 250 4. Rotate the ‘Bottom Selection Knob’ (22) to adjust the Function Setting. Figure 14 5. Press the ‘Bottom Selection Knob’ (22) to confirm the setting. Figure 15 Table 10 © Weldclass 2020 | E.&O.E.

  • Page 22: Soft-Start Adjustment (Syn/Man)

    When the trigger is pulled the machine will weld for the set time and then stop. This is great for producing very precise weld size or ensuring consistent weld size/length when spot welding, tacking or stitch welding. 4.3.7 Metric/Imperial (SYN/MAN) This changes the display settings to either Metric or Imperial language. © Weldclass 2020 | E.&O.E.

  • Page 23: Machine Software Information (Syn/Man)

    This is information displayed for service technician reference. It shows the version of software installed on the machine and other technical information. 4.3.9 Plug/Power Supply Selection (SYN/MAN) [Weldforce 210MST only] This changes the power supply mode of the machine. “10A” mode is suitable for running on a 10A rated power plug. However, the maximum output of the machine will be restricted in this mode.

  • Page 24: Factory Reset

    ALARM 11: Torch and earth short-circuit. Make sure the welding circuit has not short-circuited. ALARM 13: No internal communication. If the alarm continues, contact an authorised repair centre. ALARM 18: Auxiliary voltage fault. If the alarm continues, contact an authorised repair centre. © Weldclass 2020 | E.&O.E.

  • Page 25: Power Supply

    5.1 Electrical Connection 5.1.1 Weldforce 210MST The Weldforce 210MST is factory-fitted with a 10A 240V plug for commissioning purposes. Whilst this 10A plug is fitted the operator must ensure that the machine is set on 10A mode and ensure that output &...

  • Page 26: Generator Use

    5.3.1 Generator Size Weldforce 210MST: Generator size should be not less than 7kva, preferably 8kva or more. A 7kVa generator will not provide enough power to enable full output and duty cycle, however it should provide sufficient power to enable MIG welding up to approximately 150A.

  • Page 27: Operating Environment

    For further information please refer to AS 60529. Ventilation Adequate ventilation is required to provide proper cooling for the machine. Ensure that the machine is placed on a stable level surface where clean cool air can easily flow through the unit. © Weldclass 2020 | E.&O.E.

  • Page 28: Basic Operation

    Replace retaining Nut & Spring g. Adjust Tension so that the spool can rotate freely, but does not continue to rotate/free- wheel once the wire feed stops (causing wire to unravel). Figure 17 © Weldclass 2020 | E.&O.E.
  • Page 29 Replace retaining Nut g. Adjust Tension with Hex Key so that the spool can rotate freely, but does not continue to rotate/free-wheel once the wire feed stops (causing wire to unravel). © Weldclass 2020 | E.&O.E.

  • Page 30: Loading Wire Feeder

    15. Replace the tip on the MIG torch and trim off any excess wire. WARNING! DO NOT touch the wire while it is feeding as it is electrically live and you risk electrocution or injury. © Weldclass 2020 | E.&O.E.
  • Page 31 Wire Outlet Tube Drive Roller Drive Roller Retainer Cap Wire Inlet Guide Weldforce 210MST Figure 18 Tension Arm Tension Lever & Knob Wire Outlet Tube Drive Roller Drive Roller Retainer Wire Inlet Guide Weldforce 250MST Figure 19 © Weldclass 2020 | E.&O.E.

  • Page 32: Gasless Welding Setup

    3. Connect the MIG Torch Polarity Change Tail to the Negative Dinse Socket (for 210MST) or Negative Torch Terminal (260MST). Note: if this connection is not made, there will be no electrical connection to the welding torch! Weldforce 210MST Figure 20 Weldforce 250MST © Weldclass 2020 | E.&O.E.

  • Page 33: Gas Mig Welding Setup

    5. Open gas cylinder valve and adjust regulator. Press Trigger on the welding torch to initiate flow of gas through the welding torch. Flow should be between 10-25L/min depending on application. Weldforce 210MST Figure 21 Weldforce 250MST © Weldclass 2020 | E.&O.E.

  • Page 34: Additional Setup For Mig Welding With Aluminium

    2. Replace the liner in the MIG Torch with a special Graphite/Teflon/PVC liner (rather than the conventional steel liner). The Weldclass Universal Graphite liner kit is recommended (P3-CTUL09) 3. Choose the largest dimeter wire possible that can be used by your machine for your application.

  • Page 35: Stick (Mma) Welding Operation

    5. Set welding process selector to ‘MMA’ (refer to 4.1) 6. Select the required output current using the ‘Top Selection Knob’ (21). 7. Adjust special Function settings if required (refer to 4.3) 8. You are now ready to weld! Figure 22 © Weldclass 2020 | E.&O.E.

  • Page 36: Lift Tig Operation

    NOTE: Lift TIG operation requires an optional standard Gas valve control TIG torch, argon gas cylinder & regulator. NOTE: The Weldforce 210MST & 250MST are DC (Direct Current) output welders only, this means that they are NOT able to TIG weld reactive metals such as Aluminium alloys and Brass (which require AC output). DC TIG output is suitable for steel, stainless steel and copper.

  • Page 37: Accessories, Spare Parts & Circuit Diagrams

    DIAGRAMS 8.1 MIG Torch and Spares: The MIG Torch supplied with the Weldforce 210MST & 250MST is a BZL 25 (Binzel 25 style) model. To view parts for this torch, see below table or go to: Weldclass.com.au/BZL25parts BZL 25 Torch Parts Ref.

  • Page 38: Tig Torch And Spares (Optional Extra)

    8.2 TIG Torch and Spares (Optional Extra): The compatible TIG torch for this machine is the Weldclass 3-TTU2917V/4 torch. To view this torch and parts, go to: www.weldclass.com.au Part No. Description WC-00992 Complete TIG Torch – 17 Series with Valve 4m...

  • Page 39: Optional Accessories

    Complete TIG Torch – 17 Series with Valve 4m WC-06235 Welding Trolley WC-01775 Welding Gloves P6-MPLY MIG Pliers Table 13 8.4 Drive Rollers: Weldforce 210MST Drive Rollers Part No. Drive Roller WC-06422 V-Groove (Steel) 0.6mm / 0.8-0.9mm WC-06425 Knurled (Flux-Cored) 0.8-0.9mm / 1.2mm U-Groove (Aluminium) 0.9-1.0mm / WC-06426 V-Groove (Steel) 0.9-1.0mm...

  • Page 40: Machine Spare Parts

    8.5 Machine Spare Parts: For machine parts, go to Weldclass.com.au/machines or contact your Weldclass distributor. Weldforce 210MST Ref. Description Ref. Description Resistor Drive Roller Single Phase Rectifier Euro Torch Connection Socket Capacitor MIG Torch Relay Output Cable Connection Socket Diode IGBT &...
  • Page 41 Weldforce 210 & 250 Figure 25 Figure 26 © Weldclass 2020 | E.&O.E.
  • Page 42 Gas Hose Kit Torch Hook Dinse Holder Diaphram Door Side Panel Dinse Socket Dinse Plug Earth Clamp Drive Roller – Fe Torch Connection Drive Roller – Alu Anchor for Pressure Roller MIG Torch Wire Conduit Table 17 © Weldclass 2020 | E.&O.E.
  • Page 43 Weldforce 210 & 250 © Weldclass 2020 | E.&O.E.

  • Page 44: Primary Schematic Circuit Diagram

    8.6 Primary Schematic Circuit Diagram Weldforce 210MST Figure 27 © Weldclass 2020 | E.&O.E.
  • Page 45 Weldforce 210 & 250 Weldforce 250MST © Weldclass 2020 | E.&O.E.

  • Page 46: Care & Maintenance

    9 CARE & MAINTENANCE 9.1 Keep your Welding Machine in Top Condition The Weldforce 210MST & 250MST do not require any special maintenance, however the user should take care of their machine as follows: 1. Regularly clean the ventilation slots 2.

  • Page 47: General Guide To Welding

    10.2.1.5 Materials MMA welding can be used with a wide variety of electrodes including general purpose, low hydrogen, stainless steel, iron powder, hard facing & cast iron just to name a few. © Weldclass 2020 | E.&O.E.

  • Page 48: The Tig Process

    It does not rely on the operator to feed in filler wire like TIG welding. Also because the filler wire is on a roll it lasts significantly longer than a Stick welding electrode so © Weldclass 2020 | E.&O.E.

  • Page 49: Joint Preparations

    Slag should be removed from oxy-cut surfaces. Typical joint designs are shown in the following figures. Figure 28 Figure 31 Figure 32 Figure 29 Figure 33 Figure 30 © Weldclass 2020 | E.&O.E.
  • Page 50 Figure 34 Figure 35 Figure 37 Figure 36 © Weldclass 2020 | E.&O.E.

  • Page 51: Mig Basic Welding Guide

    It is commonly used to weld large diameter wires in the flat and horizontal position and small wire diameters in all positions. The process is used to a lesser degree for welding stainless steel and for overlay work. Figure 39 © Weldclass 2020 | E.&O.E.

  • Page 52: Position Of Mig Torch

    Generally solid wire is about 10mm and flux-cored/gasless wire about 15-20mm. 11.6 Travel Speed The speed at which the molten pool travels influences the width of the weld and penetration of the welding run. © Weldclass 2020 | E.&O.E.

  • Page 53: Mig Welding (Gmaw) Variables

    Maintain at about 10mm stick-out for solid wire and 15-20mm for gasless wire. Figure 41 2. Wire Feed Speed: Increase in wire feed speed increases weld current/amperage. Decrease in wire feed speed decreases weld current. © Weldclass 2020 | E.&O.E.
  • Page 54 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. Figure 43 Figure 42 Horizontal Butt Weld Vertical Fillet Welds Figure 44 Figure 46 Horizontal Fillet Weld Overhead Fillet Weld Figure 47 Figure 45 © Weldclass 2020 | E.&O.E.

  • Page 55: Establishing The Arc And Making Weld Beads

    11.8 Establishing the Arc and Making Weld Beads Before attempting to weld on a finished piece of work, it is recommended that practice welds be made on a sample metal of the same material as that of the finished piece. The easiest welding procedure for the beginner to experiment with MIG welding is the flat position.

  • Page 56: How To Determine Correct Wire Speed/Voltage Setting

    4. The amount of penetration required 5. The deposition rate required 6. The bead profile desired 7. The position of welding 8. Cost of the wire 9. Environment (can shielding gas be used or not?) © Weldclass 2020 | E.&O.E.

  • Page 57: Mig Welding Troubleshooting

    Check that the MIG torch O-rings are not damaged on the Euro connector. Table 19 WARNING! Disengage the feed roll when testing for gas flow by ear or use the ‘Gas Test’ button © Weldclass 2020 | E.&O.E.

  • Page 58: Wire Feed Problems

    Bent liner (Replace liner) This will cause friction between the wire and the liner this reducing wire feed. Table 21 © Weldclass 2020 | E.&O.E.

  • Page 59: Weld Quality Problems

    Figure 53 Excessive weld stresses. Increase weld metal strength or revise design. Excessive voltage. Decrease voltage. Cooling rate too fast. Slow the cooling rate by preheating part to be welded or cool slowly. © Weldclass 2020 | E.&O.E.
  • Page 60 (+) welding terminal for exhibits when the wire feed front panel. solid wires and negative (-) speed and voltage are welding terminal for gasless adjusted correctly wires. Refer to the wire manufacturer for the correct polarity. Table 22 © Weldclass 2020 | E.&O.E.

  • Page 61: Stick (Mma) Basic Welding Guide

    Most types of cast iron, except white iron, are weldable. White iron, because of its extreme brittleness, generally cracks when attempts are made to weld it. Trouble may also be experienced when welding white-heart malleable, due to the porosity caused by gas held in this type of iron. © Weldclass 2020 | E.&O.E.

  • Page 62: Types Of Electrodes

    12.5.1 MILD STEEL: 1. General Purpose “GP” E6013 (Weldclass 12V): This all-position electrode is used for maintenance and fabrication. Works well on mild steel, galvanized steel, sheet metal, steel tube and RHS.

  • Page 63: Mma Welding Techniques

    Another difficulty you may meet is the tendency, after the arc is struck, to withdraw the electrode so far that the arc is broken again. A little practice will soon remedy both of these faults. Figure 54 © Weldclass 2020 | E.&O.E.

  • Page 64: Arc Length

    If the travel is too fast, the bead will be narrow and strung out and may even be broken up into individual globules. If the travel is too slow, the weld metal piles up and the bead will be too large. © Weldclass 2020 | E.&O.E.

  • Page 65: Making Welded Joints

    Plates thicker than 6.0mm should have their mating edges beveled to form a 70º to 90º included angle. This allows full penetration of the weld metal to the root. Using a 3.2mm Weldclass 12V Stick electrode at 100 amps, deposit a run of weld metal on the bottom of the joint.

  • Page 66: Fillet Welds

    A piece of angle iron is a suitable specimen with which to begin, or two lengths of strip steel may be tacked together at right angles. Using a 3.2mm Weldclass 12V Stick electrode at 100 amps, position angle iron with one leg horizontal and the other vertical. This is known as a horizontal-vertical (HV) fillet.

  • Page 67: Vertical Welds

    Tack weld a three feet length of angle iron to your work bench in an upright position. Use a 3.2mm Weldclass 12V Stick electrode and set the current at 100 amps. Make yourself comfortable on a seat in front of the job and strike the arc in the corner of the fillet. The electrode needs to be about 10º...

  • Page 68: Overhead Welds

    Use a 3.2mm Weldclass 12V Stick electrode at 100 amps, and deposit the first run by simply drawing the electrode along at a steady rate. You will notice that the weld deposit is rather convex, due to the effect of gravity before the metal freezes.

  • Page 69: Mma (Stick) Troubleshooting

    Insufficient deposit time at Pause for a moment at edge of edge of weave. weave to allow weld metal build-up. Power source is set for MIG Set power source to STICK (GMAW) welding. (MMA) mode. © Weldclass 2020 | E.&O.E.
  • Page 70 Redesign to relieve weld joint soon after solidification severe crack commences resistance electrodes. Insufficient throat thickness. Travel slightly slower to allow greater build up in throat. Weld current is too high. Decrease welding current. Figure 68 Table 24 © Weldclass 2020 | E.&O.E.

  • Page 71: Tig Basic Welding Guide

    Table 25 * Note that the WeldForce 210MST machine is only capable of DC TIG welding. It cannot perform AC TIG welding required to weld Aluminium. Table 26 Tungsten Electrode Current Ranges...

  • Page 72: Preparing Tungsten For Dc Electrode Negative (Dcen) Welding

    The electrode should be pointed according to the welding current. Electrode Angles Angle @ Range of Current (Amps) 30° 0 – 30 60-90° 30 -120 90-120° 120 - 250 Figure 73 120° ≥250 Table 28 © Weldclass 2020 | E.&O.E.

  • Page 73: Shielding Gas For Tig Welding

    Lap / Fillet 1.6mm 60-70 40-60 1.6mm 1.6mm Butt/ Corner (1/16”) (1/16”) (1/16”) 70-90 50-70 Lap / Fillet 3.2mm 80-100 65-85 1.6mm 2.4mm Butt/ Corner (1/8”) (1/16”) (3/32”) 90-115 90-110 Lap / Fillet Table 30 © Weldclass 2020 | E.&O.E.

  • Page 74: Tig Welding Troubleshooting

    Select the right shielding gas. used. Poor Work Lead/Clamp Improve connection to work piece. connection to work piece. Arc flutters during TIG welding. Tungsten electrode is too large Select the right size electrode. for the welding current. Table 31 © Weldclass 2020 | E.&O.E.

  • Page 75: Knowledge & Resources

    15.3 Welding Operation 1. Maintain labels and nameplates on the welder. These carry important information. If unreadable or missing, contact Weldclass for a replacement. 2. Avoid unintentional starting. Make sure the welder is setup correctly and you are prepared to begin work before turning on the welder.
  • Page 76 12. Do not use this machine for pipe thawing. This machine was not designed for pipe thawing and will be a significant electrical & heat hazard if attempt is made to use for thawing pipe. © Weldclass 2020 | E.&O.E.

  • Page 77: Welding Safety Instructions & Warnings

    CAUTION! Have the equipment serviced by a qualified repair person using identical replacement parts. This will ensure that the safety of the power tool is maintained. © Weldclass 2020 | E.&O.E.

  • Page 78: Personal Safety

    5. Never wear contact lenses while welding. 15.4.3 Noise Can Damage Hearing CAUTION! Noise from some processes can damage hearing. Use AS/NZS compliant ear plugs or ear muffs if the noise level is high. © Weldclass 2020 | E.&O.E.

  • Page 79: Work Environment Safety

    3. Insulate yourself from the work and the ground using dry insulating mats or covers. 4. Disconnect input power before installing or servicing this equipment. Lock input power, disconnect switch open, or remove line fuses so power cannot be turned on accidentally. © Weldclass 2020 | E.&O.E.

  • Page 80: Fumes And Gases

    5. Work in a confined space only if it is well ventilated, or while wearing an air-supplied respirator. Shielding gases used for welding can displace air causing injury or death. Be sure the breathing air is safe. © Weldclass 2020 | E.&O.E.

  • Page 81: Fire & Explosive Risks

    WARNING! Chipping and grinding causes flying metal, and as welds cool they can throw off slag. 1. Wear an AS/NZS approved face shield or safety goggles. Side shields are recommended. 2. Wear appropriate safety equipment to protect the skin and body. © Weldclass 2020 | E.&O.E.

  • Page 82: Gas Cylinders

    6. Turn your face away from the valve outlet when opening the cylinder valve. 16 WARRANTY 16.1 Warranty Information For full details on warranty period and terms and conditions, go to www.weldclass.com.au/WarrantyInfo © Weldclass 2020 | E.&O.E.
  • Page 83 Weldforce 210 & 250 NOTES: © Weldclass 2020 | E.&O.E.
  • Page 84 © Weldclass 2020 | E.&O.E.

This manual is also suitable for:

Weldforce 250mstWc-210mstWc-210mstk3Wc-250mst

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