Weldarc Inverter Series Operators Manual Weldarc Manual Arc/TIG welders Weldarc 125i – Model No. MC91-0, Iss A Weldarc 145i – Model No. MC92-0, Iss A Weldarc 165i – Model No. MC93-0, Iss A 05/07 WELDING INDUSTRIES OF AUSTRALIA a division of Welding Industries Ltd ABN 18 004 547 111 Telephone 1300 300 884 Facsimile 1300 301 884 Email: Info@welding.com.au www.welding.com.
Weldarc 125i, 145i, 165i Operators Manual Contents Section General Information Model No.
Weldarc 125i, 145i, 165i Operators Manual Read First The information contained in this manual is set out to enable you to properly maintain your new equipment and ensure that you obtain maximum operating efficiency. Please ensure that this information is kept in a safe place for ready reference when required at any future time. When ordering spare parts, please quote the model and serial number of the power source and part number of the item required.
Weldarc 125i, 145i, 165i working overhead. Flammable hair preparations (hairspray) should not be used by persons intending to weld or cut. Toxic Fumes Adequate ventilation with air is essential. Severe discomfort, illness or death can result from fumes, vapours, heat, or oxygen depletion that welding or cutting may produce. NEVER ventilate with oxygen. Lead, cadmium, zinc, mercury, and beryllium bearing and similar materials when welded or cut may produce harmful concentrations of toxic fumes.
Weldarc 125i, 145i, 165i Operators Manual 1 Introduction 2 Receiving MMAW Manual Metal Arc Welding (MMAW) is a process where an arc is struck between a flux-coated consumable electrode and the work piece. The arc and the weld pool are both shielded by gases generated by the flux coating of the electrode. Check the equipment received against the shipping invoice to make sure the shipment is complete and undamaged. If any damage has occurred in transit, please immediately notify your supplier.
Weldarc 125i, 145i, 165i Operators Manual 3 Specifications Power Source Manufactured to Australian Standard AS1966.1. Rated to ISO 60974-1. 125i 145i 165i Primary Voltage 240 Vac +/- 10%, 50/60 Hz 240 Vac +/- 10%, 50/60 Hz 240 Vac +/- 10%, 50/60 Hz Effective Primary Current 10 Amps 16.5 Amps 20.5 Amps Maximum Primary Current 24.5 Amps 28 Amps 32.5 Amps 145 Amp, 25.8 V, 35% duty 165 Amp, 26.5 V, 40% duty 125 Amp, 25.
Weldarc 125i, 145i, 165i Operators Manual 4 Power Source Controls 2 Power Switch Located on the rear panel 3 10 4 1 5 6 7 8 9 Fig 1 Power Source Controls 1 Current Control 6 TIG Mode & Pulse TIG Mode This control sets the output current level of the power source within the available range. Rotate the knob clockwise to increase the output current. This light is on when TIG (Gas Tungsten Arc Welding) mode is selected.
Weldarc 125i, 145i, 165i Operators Manual 5 Operation 6 Installation VRD Function Connection to Electrical Mains Power Supply Whenever the welding output of the Weldarc inverter is open circuit (ie not arcing), the voltage across the welding leads is reduced to a safe level. This provides an increased level of safety to the welding operator during operations such as changing the electrode. The green coloured “VRD SAFE” indicator on the front panel is on to confirm the output is in the safe condition.
Weldarc 125i, 145i, 165i Operators Manual 7 MMAW Welding To strike the arc, drag the end of the electrode along the work piece as if striking a match. As the arc initiates, lift the electrode slightly away, aiming to establish an arc length of approximately 3mm. There are two Modes for MMAW : • Normal stick electrode • Cellulose stick electrode Connection for Mmaw Welding It is important to select the electrode polarity in accordance with the manufacturers recommendations for that electrode.
Weldarc 125i, 145i, 165i Operators Manual 8 GTAW Welding GTAW Operation Connection for Gtaw Welding For GTAW, the torch is connected negative terminal. Figure 4 illustrates the correct connection of the welding torch and gas supply. Welding grade Argon is the shielding gas most commonly used for DC GTAW welding. Before first use of the welding torch, allow gas to purge the torch and hoses for 5 minutes at approximately 10 litres/min.
Weldarc 125i, 145i, 165i Operators Manual 9 General Maintenance 10 External Trouble Shooting Before removing the power source covers, ENSURE that the equipment is disconnected from the mains power supply. When the equipment is energised LETHAL VOLTAGES are present on the electrical components enclosed. If the following checks do not identify the fault condition, the equipment should be returned to a WIA Service agent. Phone 1300 300 884 for details of your nearest service agent.
Weldarc 125i, 145i, 165i Operators Manual 11 Service Information. CAUTION: The following information is intended for use by qualified service personnel. When the equipment is energised, Lethal Voltages are present on the electrical and electronic components. It is not intended that persons without suitable training and knowledge attempt to perform service tasks on the components of this welder. The electrical components of the equipment are shown in the circuit diagram below.
Weldarc 125i, 145i, 165i Operators Manual 11.1 Circuit Diagrams - Power Source Fig 5 Power Source Circuit Diagram Quality, Reliability, Performance Model No.
Weldarc 125i, 145i, 165i Operators Manual 12 Assembly and Parts List - Weldarc Inverter 4 3 5 6 165i only 7 7 8 2 9 1 23 10 22 11 21 12 13 20 14 15 16 8 17 9 18 19 Fig 6 Weldmatic Inverter Power Source Assembly 14 Model No.
Weldarc 125i, 145i, 165i Operators Manual Item # Part # Description Qty 1 M0022 Foot 4 2 PST009 Panel Set 1 3 MZ208015 Handle Assembly 1 4 M0024 Strap Support 2 5 MC100-54 Knob (large) 1 6 E0016 Knob (small) 2 7 LST014 LST015 LST016 Label Set 125i Label Set 145i Label Set 165i 1 1 1 8 SA140-0/2 Socket Dinsel 25mm 2 9 M0023 Grill Moulding 1 10 E0023 Switch DPDT Panel Mount 1 11 MC102-30 MC100-30 MC101-30 125i Flex 10 Amp + Plug 10 Amp 145i Flex 15 Amp + Plug 15
Weldarc 125i, 145i, 165i 13 Warranty Information WIA Gold Shield 3 Year Warranty Effective 1st March 2005 At WIA, we are serious about product quality. Every new Weldmatic and Weldarc machine comes fully backed by the WIA ‘Gold Shield 3 Year Warranty’, covering parts and workmanship, so you can be guaranteed you’re buying reliability and performance.
