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resistant material (leather, heavy cotton, or wool) 

and foot protection. Welding on closed containers, 

such as tanks, drums, or pipes, can cause them to 

blow up. Sparks can fly off from the welding arc. The 

flying sparks, hot work piece, and hot equipment can 

cause fires and burns. Accidental contact of electrode 

to metal objects can cause sparks, explosion, 

overheating, or fire. Check and be sure the area is safe 

before doing any welding.

WELDING can cause fire or explosion.

Remove all flammables within 10m of the welding 

arc. If this is not possible, tightly cover them with 

approved covers.
Do not weld where flying sparks can strike flammable 

material.
Protect yourself and others from flying sparks and hot 

metal.
Be alert that welding sparks and hot materials from 

welding can easily go through small cracks and 

openings to adjacent areas.
Watch for fire, and keep a fire extinguisher nearby. Be 

aware that welding on a ceiling, floor, bulkhead, or 

partition can cause fire on the hidden side.
Do not weld on closed containers such as tanks, 

drums, or pipes, unless they are properly prepared 

according to local regulations
Connect work cable to the work as close to the 

welding area as practical to prevent welding current 

from travelling along, possibly unknown paths and 

causing electric shock, sparks, and fire hazards.
Wear oil-free protective garments such as leather 

gloves, heavy shirt, cuffless trousers, high shoes, and 

a cap. Remove any combustibles, such as a butane 

lighter or matches, from your person before doing any 

welding.

FLYING METAL can injure eyes.

Welding, chipping, wire brushing, and grinding cause 

sparks and flying metal. 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. Always 

ventilate confined spaces or use approved air-supplied 

respirator.

HOT PARTS can cause severe burns.

Do not touch hot parts with bare hands.
Allow cooling period before working on gun or torch.
To handle hot parts, use proper tools and/or wear 

heavy, insulated welding gloves and clothing to 

prevent burns.

MAGNETIC FIELDS can affect pacemakers.

Pacemaker wearers keep away.
Wearers should consult their doctor before going near 

arc welding, gouging, or spot welding operations.

NOISE can damage hearing.

Noise from some processes or equipment can damage 

hearing.
Wear approved ear protection if noise level is high.
Shielding gas cylinders contain gas under high 

pressure.

CYLINDERS can explode if damaged.

Protect compressed gas cylinders from excessive 

heat, mechanical shocks, physical damage, slag, open 

flames, sparks, and arcs. Install cylinders in an upright 

position by securing to a stationary support or cylinder 

rack to prevent falling or tipping. Keep cylinders away 

from any welding or other electrical circuits. Never 

drape a welding torch over a gas cylinder. Never allow 

a welding electrode to touch any cylinder. Never weld 

on a pressurized cylinder - explosion will result. Use 

only correct shielding gas cylinders, regulators, hoses, 

and fittings designed for the specific application; 

maintain them and associated parts in good condition.
Turn face away from valve outlet when opening 

cylinder valve.
Use the right equipment, correct procedures, 

and sufficient number of persons to lift and move 

cylinders.
Read and follow instructions on compressed gas 

cylinders, associated equipment, and Compressed Gas 

Association (CGA) recommendations.

Sa

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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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