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Weldmatic 270   |   Operator Manual   |   Model No CP146-2

5

4

SAFE PRACTICES WHEN USING 

WELDING EQUIPMENT

These notes are provided in the interests 

of improving operator safety. They should 

be considered only as a basic guide to 

Safe Working Habits. A full list of Standards 

pertaining to industry is available from 

the Standards Association of Australia, 

also various State Electricity Authorities, 

Departments of Labour and Industry 

or Mines Department and other Local 

Health or Safety Inspection Authorities 

may have additional requirements. 

Australian Standard AS1674.2 provides a 

comprehensive guide to safe practices  

in welding.

Eye Protection
NEVER LOOK AT AN ARC WITHOUT 

PROTECTION. Wear a helmet with safety 

goggles or glasses with side shields 

underneath, with appropriate filter lenses 

protected by clear cover lens. This is a 

MUST for welding, cutting, and chipping to 

protect the eyes from radiant energy and 

flying metal. Replace the cover lens when 

broken, pitted, or spattered.

Recommended Shade Filter Lens

Amps

TIG MMAW MIG Pulsed 

MIG

0-100

10

9

10

12-13

100-150

11

10

10

12-13

150-200 12

10-11

11-12 12-13

200-300 13

11

12-13 12-13

300-400 14

12

13

14

400-500 

13

14

14

500 +

14

14

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. All 

relevant numbers are shown in lists 

contained in this manual. Failure to 

supply this information may result in 

unnecessary delays in supplying the 

correct parts.

SAFETY

Before this equipment is put into 

operation, please read the Safe 

Practices section of this manual. 

This will help to avoid possible injury 

due to misuse or improper welding 

applications.

PLASTIC HANDLES ON 

POWER SOURCE

Please note that the handles fitted 

to the Weldmatic power source are 

intended for carrying the equipment 

by hand only.
DO NOT use these handles for 

suspending or mounting the power 

source in any other manner.

Summary of Contents for CP146-1

Page 1: ...MIG Welder WELDING COM AU OPERATORS MANUAL CP146 1 From serial numbers CP1462A...

Page 2: ...f ITW Australia Pty Ltd ABN 63 004 235 063 1300 300 884 Email info welding com au welding com au WELDWELL NEW ZEALAND A Division of ITW New Zealand NZBN 9 429 039 833 129 GST NO 080177186 0800 9353 93...

Page 3: ...llation 10 6 Normal Welding Sequence 12 7 Basic Welding Information 12 8 General Maintenance 14 9 External Trouble Shooting 15 10 Trouble Shooting Chart 16 11 Circuit Diagrams 18 12 Assembly Parts Lis...

Page 4: ...er Lens Amps TIG MMAW MIG Pulsed MIG 0 100 10 9 10 12 13 100 150 11 10 10 12 13 150 200 12 10 11 11 12 12 13 200 300 13 11 12 13 12 13 300 400 14 12 13 14 400 500 13 14 14 500 14 14 READ FIRST The inf...

Page 5: ...h or containing materials that emit fumes should not be heated unless coating is removed from the work surface the area is well ventilated or the operator wears an air supplied respirator Work in a co...

Page 6: ...ing depending on the combustible s solubility followed by purging and inerting with nitrogen or carbon dioxide and using protective equipment as recommended in AS 1674 2 Water filling just below worki...

Page 7: ...e used when welding at lower currents such as sheet metal applications Increasing the wire diameter permits higher welding currents to be selected A common application of G M A W is for welding Mild S...

Page 8: ...Amp 27 5 V 20 duty 150 Amp 21 5 V 60 duty 120 Amp 20 V 100 duty Welding Current 30 270 Amps Open Circuit Voltage 17 41 V Shipping weight 115 kg Power source only 142 kg Includes wirefeeder leads Main...

Page 9: ...rate Switch 4 Coarse Voltage Control This switch provides Coarse adjustment of the output welding voltage over four ranges 4 POWER SOURCE CONTROLS 5 Fine Voltage Control This switch provides Fine adju...

Page 10: ...greater The minimum recommended supply circuit breaker rating for a Weldmatic 270 is 25 Amps For Australian and New Zealand installation a 32 Amp plug is the closest suitable size The supply circuit...

Page 11: ...osite cable interconnecting lead Check all connections are firmly made to ensure good electrical contact and to prevent gas leaks Output Voltage Polarity The design of the Weldmatic 270 allows selecti...

Page 12: ...y the consumable wire to be used Many proprietary shielding gas mixtures are available The recommended shielding gases for use with the Weldmatic 270 are Mild Steel Argon 5 to 25 Carbon Dioxide 100 CO...

Page 13: ...occurring as a series of large droplets Important Do not operate the Voltage Control switches during welding The weld setting should be chosen to suit the application and the thickness of the metal to...

Page 14: ...removed by the use of a dry low pressure compressed air or a vacuum cleaner The machine should be blown out with compressed air at least every 12 months as grinding dust can settle on PCB componentry...

Page 15: ...uipment should be returned to a WIA Service agent Phone 1300 300 884 for details of your nearest service agent If you are in New Zealand and the following checks do not identify the fault condition th...

Page 16: ...he fan running until the machine has cooled sufficiently The duty cycle should be observed and understood No welding current but display on The connections may not be made securely Ensure all connecti...

Page 17: ...atch mode should be switched off Weld is contaminated with small bubbles presence of porosity Air in the gas hose The torch gas hose has not been purged sufficiently The gas hose is not securely conne...

Page 18: ...Weldmatic 270 Operator Manual Model No CP146 2 18 11 CIRCUIT DIAGRAMS POWER SOURCE Fig 7 Power Source Circuit Diagram...

Page 19: ...19 12 ASSEMBLY AND PARTS LIST WELDMATIC 270 POWER SOURCE Fig 8 Weldmatic 270 Power Source Assembly 18 20 22 26 24 25 23 19 15 13 12 6 4 16 11 17 14 5 7 8 3 2 1 9 10 21...

Page 20: ...4 Position 1 12 E0054 Switch Fine 4 Position 1 13 TC265 5 8 UNF Nipple 1 14 TC266 5 8 UNF Nut 1 15 CX58 Socket Dinse 2 16 E0024 Circuit Breaker 5 Amp 1 17 MR230304 Plastic Front 1 18 PWA010 Fan On Dem...

Page 21: ...act Tip 3 BE4335 Gas Diffuser Head 4 BE4323 Cap 5 BEQT2 45 BEQT2 30 Body Tube 2 45 supplied Body Tube 2 30 6 GUN002 Handle Kit includes both halves screws trigger 7 GUN003 Trigger 8 GUN005 Rigid Casin...

Page 22: ...0mm BE7496 1 2mm BE7490 Tips To replace liner Disconnect gun cable assembly at the Euro adaptor Remove nozzle 1 and head 3 Withdraw old liner from the wirefeeder end Insert new liner and refit gun cab...

Page 23: ...our products may result in the loss of any user generated data Please ensure that you have made a copy of any data saved on your product Any handling and transportation costs and other expenses incurr...

Page 24: ...e goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure The benefits given by this warranty are in addition to other rights and re...

Page 25: ...ian warranty conditions the customer should return the Product to the original place of purchase with proof of purchase or contact Weldwell on 0800 9353 9355 The warranty shall not apply to parts that...

Page 26: ...Weldmatic 270 Operator Manual Model No CP146 2 26 NOTES...

Page 27: ...27 NOTES...

Page 28: ...A Division of ITW Australia Pty Ltd ABN 63 004 235 063 1300 300 884 Email info welding com au welding com au WELDWELL NEW ZEALAND A Division of ITW New Zealand NZBN 9 429 039 833 129 GST NO 080 177 18...

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