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Welcome

Thank you and congratulations on choosing Parweld. This Owner’s Manual is designed to help you 
get the most out of your Parweld products. Please take time to read the Safety precautions. They will 
help you protect yourself against potential hazards in the workplace. With proper maintenance this 
equipment should provide years of reliable service. All our systems conform to ISO9001: 2000 and are 
independently audited by NQA. 
The entire product range carries the CE mark, and is constructed in accordance with European directives 
and the product specific standards where they apply. 

Further Information

Parweld is the UK’s leading manufacturer of MIG, TIG and Plasma torches and consumables.
For more information about Parweld’s complete range visit: www.parweld.com

Summary of Contents for XTI-303 AC/DC

Page 1: ...INSTRUCTION MANUAL...

Page 2: ...Operator Manual ISSUE 2 XTI 303 AC DC...

Page 3: ...maintenance this equipment should provide years of reliable service All our systems conform to ISO9001 2000 and are independently audited by NQA The entire product range carries the CE mark and is co...

Page 4: ...ls 6 5 0 Installation 7 5 1 Unpacking the Machine 7 5 2 Location 7 5 3 Input and grounding connection 7 5 4 Output Polarity Connections 7 5 5 Torch Installation 8 5 6 Work return lead connection 8 6 0...

Page 5: ...unit according to manual Wear a safety harness if working above floor level Keep all panels and covers securely in place Clamp work cable with good metal to metal contact to work piece or worktable as...

Page 6: ...As welds cool they can throw off slag Wear approved safety glasses with side shields even under your welding helmet BUILDUP OF GAS can injure or kill Shut off shielding gas supply when not in use Alw...

Page 7: ...ching on or off the mains supply to the machine Note the output of the machine is permanently on in MMA mode unless the on off switch is in the off position 2 Gas input connection 3 8 BSP male connect...

Page 8: ...ad in TIG welding 21 Water out connection for a water cooled TIG torch 5 0 Installation Read entire installation section before starting installation SAFETY PRECAUTIONS ELECTRIC SHOCK can kill Only qu...

Page 9: ...rticular interest for everyday general work These include some low hydrogen types for high tensile steel cellulose types for welding large diameter pipes etc The range of electrodes dealt with in this...

Page 10: ...lope down and switch off TIG welding guide ranges Electrode diameter AC current amps DC current amps 0 040 1 0mm 15 30 20 60 1 16 1 6mm 60 120 75 150 3 32 2 4mm 100 180 150 250 Tungsten electrode type...

Page 11: ...ses or use crack resistance electrodes b Travel slightly slower to allow greater build up in throat c Preheat plate and cool slowly The filler wire diameter specified is a guide only other diameter wi...

Page 12: ...ause Remedy Non metallic particles are trapped in the weld metal slag inclusion a Non metallic particles may be trapped in undercut from previous run b Joint preparation too restricted c Irregular dep...

Page 13: ...IG welding guide for ways to reduce arc flutter FAULT FINDING Description Possible Cause Remedy Excessive bead build up or poor penetration or poor fusion at edges of weld Welding current is too low I...

Page 14: ...e right shielding gas Refer to basic TIG welding guide e Improve connection to work piece Power source problems Description Possible cause Remedy The welding arc cannot be established a The primary su...

Page 15: ...wer supply is a thorough cleaning and inspection with the frequency depending on the usage and the operating environment Warning Disconnect primary power at the source before removing the cover Wait a...

Page 16: ...ard industry practice and not subject to misuse repair neglect alteration or accident correct such defects by suitable repair or replacement at Parweld s sole option of any components or parts of the...

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