Clarke Arc/Tig120 Operating & Maintenance Manual Download Page 6

SAFETY PRECAUTIONS

WARNING:

 As with all machinery, there are certain hazards involved with their operation

and use. Exercising respect and caution will considerably lessen the risk of

personal injury. However, if normal safety precautions are overlooked, or

ignored, personal injury to the operator may result.

FAILURE TO FOLLOW THESE RULES MAY RESULT IN SERIOUS PERSONAL INJURY

1. GENERAL PRECAUTIONS

A) Burn prevention

Wear protective clothing - gauntlet gloves designed for use in welding, hat, and
protective shoes. Button shirt collar and pocket flaps, and wear cuffless trousers to
avoid entry of sparks and slag. Wear helmet with safety goggles or glasses with side
shields underneath, appropriate filter lenses or plates (protected by clear cover
glass). This is a MUST for welding or cutting, (and chipping) to protect the eyes from
radiant energy and flying metal. Replace cover glass when broken, pitted, or
spattered. Avoid oily greasy clothing. A spark may ignite them. Hot metal such as
electrode stubs and workpieces should never be handled without gloves. First aid
facilities and a qualified first aid person should be available for each shift unless
medical facilities are close by for immediate treatment of flash burns of the eyes
and skin burns. Ear plugs should be worn when working overhead or in a confined
space. A hard hat should be worn when others work overhead. Flammable hair
preparations should not be used by persons intending to weld or cut.

B) Toxic fume prevention

Severe discomfort, illness or death can result from fumes, vapours, heat, or oxygen
enrichment or depletion that welding (or cutting) may produce. Prevent them
with adequate ventilation. NEVER ventilate with oxygen. Lead-, cadmium-, zinc-,
mercury- and beryllium-, bearing materials, when welded (or cut) may produce
harmful concentrations of toxic fumes. Adequate local exhaust ventilation must
be used, or each person in the area as well as the operator must wear an air-
supplied respirator. For beryllium, both must be used. Metals coated with or
containing materials that emit toxic 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 confined space only while it is being ventilated
and, if necessary, while wearing an air-supplied respirator. Vapours from chlorinated
solvents can be decomposed by the heat of the arc (or flame) to form PHOSGENE,
a highly toxic gas, and other lung and eye irritating products. The ultraviolet
(radiant) energy of the arc can also decompose trichloroethylene and
perchloroethylene vapours to form phosgene. DO NOT WELD or cut where solvent
vapours can be drawn into the welding or cutting atmosphere or where the radiant
energy can penetrate to atmospheres containing even minute amounts of
trichloroethylene or perchloroethylene.

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PARTS DIAGRAM

Arc/Tig90 & 120

Arc/Tig150

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Summary of Contents for Arc/Tig120

Page 1: ...ARC TIG INVERTERS Model Nos Arc Tig90 Arc Tig120 Arc Tig150 ARC TIG INVERTERS OPERATING MAINTENANCE INSTRUCTIONS 0901...

Page 2: ...d value of the supply voltage nc Symbol for the number of reference electrodes capable of being melted with the welding power source starting from the cold state without operation of the thermal cut o...

Page 3: ...rantee is invalid if the product is found to have been abused or tampered with in any way or not used for the purpose for which it was intended Faulty goods should be returned to their place of purcha...

Page 4: ...alling welding equipment the user shall make an assessment of potential electromagnetic problems in the surrounding area Avoid using your inverter in the vicinity of a other supply cables control cabl...

Page 5: ...ial bonding Bonding of all metallic components in the welding installation and adjacent to it should be considered However metallic components bonded to the work piece will increase the risk that the...

Page 6: ...worn when others work overhead Flammable hair preparations should not be used by persons intending to weld or cut B Toxic fume prevention Severe discomfort illness or death can result from fumes vapo...

Page 7: ...ntainer that held combustibles or that can produce flammable or toxic vapours when heated must never be welded on or cut unless container has first been cleaned This includes a thorough steam or caust...

Page 8: ...the eyes should the helmet not be lowered over the face before an arc is struck Looking at an arc momentarily with unprotected eyes particularly a high intensity gas shielded arc can cause a retinal...

Page 9: ...l Electrical Code and the work is earthed a voltage may exist between the electrode and any conducting object Examples of conducting objects include but are not limited to buildings electrical tools w...

Page 10: ...breakers should not be disconnected or shunted out Before installation inspection or service of equipment shut OFF all power and remove line fuses or lock or red tag switches to prevent accidental tu...

Page 11: ...use the machine with any of the panels removed NEVER attempt any electrical or mechanical repair unless your are a qualified technician If you have a problem with the machine contact your local CLARKE...

Page 12: ...electrode about 10mm from the work and at an angle of about 70 to 80 to the work surface take care not to accidentally touch the workpiece until you are ready to commence 7 Holding the welding mask c...

Page 13: ...s sufficient electric current to melt both the electrode and a proper amount of base metal It also requires an appropriate gap between the tip of the electrodeandthebasemetalorthemoltenweldpool Theser...

Page 14: ...0 5mm without undue distortion Main Features of Tig Welding 1 Welds all metals 2 Electronic control of welding current 3 Forced air cooling 4 A Thermal Overload Protection Device prevents overheating...

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