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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
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.au
05/07
MC91-40 Rev C
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Table of Contents
Summary of Contents for WELDING INDUSTRIES 125i MC91-0
- Page 1 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...
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Page 2: Table Of Contents
Weldarc125i,145i,165i Operators Manual Contents Section General Information Page SafePractices Introduction Receiving Specifications Power Source Controls Operation Installation MMAW Welding GTAW Welding General Maintenance Trouble Shooting Service Information Assembly and Parts Lists Warranty information 2 Quality, Reliability, Performance Model No. MC91-0, MC92-0, MC93-0 Iss A 05/07... -
Page 3: SafePractices
Operators Manual Weldarc125i,145i,165i Safe Practices When Using Welding Read First Equipment The information contained in this These notes are provided in the interests manual is set out to enable you to of improving operator safety. They should properly maintain your new equipment be considered only as a basic guide to Safe and ensure that you obtain maximum Working Habits. - Page 4 Weldarc125i,145i,165i Operators Manual working overhead. Walls touching combustibles on opposite sides should not be welded on or cut. Walls, ceilings, Flammable hair preparations (hairspray) should and floor near work should be protected by not be used by persons intending to weld or cut. heat-resistant covers or shields.
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Page 5: Introduction
Operators Manual Weldarc125i,145i,165i 1 Introduction 2 Receiving MMAW Check the equipment received against the Manual Metal Arc Welding (MMAW) is a process shipping invoice to make sure the shipment is where an arc is struck between a flux-coated complete and undamaged. If any damage has consumable electrode and the work piece. -
Page 6: Specifications
Weldarc125i,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%, 240 Vac +/- 10%, 240 Vac +/- 10%, 50/60 Hz 50/60 Hz 50/60 Hz Effective Primary Current 10 Amps 16.5 Amps 20.5 Amps... -
Page 7: Power Source Controls
Operators Manual Weldarc125i,145i,165i 4 Power Source Controls Power Switch Located on the rear panel Fig1 Power Source Controls 1 Current Control 6 TIG Mode & Pulse TIG Mode This control sets the output current level of This light is on when TIG (Gas Tungsten Arc the power source within the available range. -
Page 8: Operation
Weldarc125i,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 The Weldarc 145i and 165i are fitted with a 15 voltage across the welding leads is reduced Amp plug and socket, recognisable by a wide to a safe level. -
Page 9: Mmaw Welding
Operators Manual Weldarc125i,145i,165i 7 MMAW Welding To strike the arc, drag the end of the electrode along the work piece as if striking a match. There are two Modes for MMAW : As the arc initiates, lift the electrode slightly away, aiming to establish an arc length of •... -
Page 10: Gtaw Welding
Weldarc125i,145i,165i Operators Manual 8 GTAW Welding GTAW Operation Connect the Work Clamp to the work piece. Connection for GTAW Welding Turn on the power switch located on the rear For GTAW, the torch is connected negative panel. Wait approximately 5 seconds as the unit terminal. -
Page 11: General Maintenance
Operators Manual Weldarc125i,145i,165i 9 General Maintenance 10 External Trouble Shooting Before removing the power source Ifthefollowingchecksdonotidentifythe covers, ENSURE that the equipment is faultcondition,theequipmentshouldbe disconnected from the mains power supply. returnedtoaWIAServiceagent.Phone When the equipment is energised LETHAL 1300300884fordetailsofyournearest VOLTAGES are present on the electrical serviceagent. -
Page 12: Service Information
Weldarc125i,145i,165i Operators Manual 11 Service Information. CAUTION:Thefollowinginformationis intendedforusebyqualifiedservice personnel.Whentheequipmentis energised,LETHALVOLTAgESare presentontheelectricalandelectronic components.Itisnotintendedthatpersons withoutsuitabletrainingandknowledge attempttoperformservicetasksonthe componentsofthiswelder. The electrical components of the equipment are shown in the circuit diagram below. The Weldarc inverter is an inverter type design, where the mains supply is first rectified, filtered then chopped to a high frequency before being applied to the welding transformer. - Page 13 Operators Manual Weldarc125i,145i,165i 11.1 Circuit Diagrams - Power Source Fig5 Power Source Circuit Diagram Quality, Reliability, Performance Model No. MC91-0, MC92-0, MC93-0, Iss A 05/07...
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Page 14: Assembly And Parts Lists
Weldarc125i,145i,165i Operators Manual 12 Assembly and Parts List - Weldarc Inverter 165i only Fig6Weldmatic Inverter Power Source Assembly 14 Quality, Reliability, Performance Model No. MC91-0, MC92-0, MC93-0 Iss A 05/07... - Page 15 Operators Manual Weldarc125i,145i,165i Item # Part # Description M0022 Foot PST009 Panel Set MZ208015 Handle Assembly M0024 Strap Support MC100-54 Knob (large) E0016 Knob (small) LST014 Label Set 125i LST015 Label Set 145i LST016 Label Set 165i SA140-0/2 Socket Dinsel 25mm M0023 Grill Moulding E0023...
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Page 16: Warranty Information
IN THE USE AND MAINTENANCE OF WELDING EQUIPMENT. This limited warranty supersedes all previous WIA (Welding Industries of Australia) In the event of a warranty claim covered by warranties and is exclusive with no other this warranty, the exclusive remedies shall be, guarantees or warranties expressed or implied.
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