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General Safe Practices

Wear approved safety glasses with side shields under your welding helmet or face shield and at all

times in the work area.

When working above floor level, use a safety belt to protect yourself from a fall should you get a

shock.

Do not install or place machine on or over combustible surfaces.

Be sure that all installation, operation, maintenance and repair procedures are performed only by

qualified persons.

Electric shock can kill.

Wear Dry, hole-free insulating gloves and body protection. Do not touch electrode with bare hand.

Do not wear wet or damaged gloves.

Do not touch live electrical parts.

Never dip the electrode in water for cooling.

Properly install and ground all equipment.

Protect yourself from electric shock by insulating yourself from work and ground.

Use non-flammable, dry insulating material if possible, or use dry rubber mats, dry wood or
plywood, or other dry insulating material big enough to cover your full area of contact with the
work or ground, and watch for fire.

Turn off input power using the disconnect switch at the fuse box before working on the equipment.

Frequently inspect input power cord for damage or bare wiring and repair or replace cord

immediately if damaged.

Fumes and gases can be dangerous.

Welding may produce fumes and gases hazardous to health. Avoid breathing these fumes and

gases. When welding, keep your head out of the fume. Use enough ventilation and/or exhaust at
the arc to keep fumes and gases away from the breathing zone.

Use enough forced ventilation or local exhaust (forced suction) at the arc to remove the fumes from

your breathing area.

Use a ventilating fan to remove the fumes from the breathing zone and welding area.

Arc rays can burn eyes and skin.

Use welding helmet with correct shade of filter to protect your eyes from sparks and the rays of the

arc.

Wear welders cap and safety glasses with side shields. Use ear protection when welding out of

position or in confined spaces. Button shirt collar.
Wear complete body protection. Wear oil-free protective clothing such as leather gloves, heavy shirt,

cuffless pants and high boots.

Summary of Contents for 200LT

Page 1: ...INVERTER DC TIG WELDER OPERATION MANUAL DO NOT INSTALL OPERATE OR MAINTAIN THIS MACHINE WITHOUT READING THIS MANUAL AND PLEASE ALWAYS THINK BEFORE YOU ACT WWW WORLDWEL COM...

Page 2: ...welding current during welding by DIGITAL AMMETER Portable by compact size lightweight ITEM UNIT 200LT Rated Input Voltage V 220 Single Phase 50 60Hz Process TIG STICK Rated Output Current A 200 150 I...

Page 3: ...of contact with the work or ground and watch for fire Turn off input power using the disconnect switch at the fuse box before working on the equipment Frequently inspect input power cord for damage o...

Page 4: ...or other alternate circuits This can create fire hazards or overheat lifting chains or cables until they fail INSTALLATION The welding machine shall be installed at a place free from the inflammables...

Page 5: ...lectrode cable to the TORCH terminal and a torch switch connector to the torch switch receptacle and a gas connector to the output gas receptacle Output connection for stick welding Connect the work c...

Page 6: ...he start current 2 Ammeter Displays the welding current 3 Welding Current Control Adjust the welding current 4 Down Slope Decreases the current down over a set period This is used to eliminate the cra...

Page 7: ...welder and then verify that the power lamp is On and the cooling fan is running Adjust properly the down slope time gas after flow time and pulse frequency Start to weld with adjusting the proper weld...

Page 8: ...OMS REASON RECOMMENDED ACTION Cooling fan does not work when the power switch is on No input voltage Fuse 3A is blown Power switch broke down Cooling fan broke down Verify input voltage Replace Fuse 3...

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Page 11: ...WTD 25 1 8 Selector Switch SRM143 1 9 Solenoid Valve DC24V 2M M 1 10 Nipple 9 16 1 4 1 11 Connector K20 2R 1 12 Output Terminal 6M M RED BLACK 2 13 NFB 50A1P 1 14 Nipple 9 16 6 1 15 Cable Lock PG16 1...

Page 12: ...ere Purchased Where you use Whenever you request replacement parts or information on this machine always supply the information you have recorded above The date number is especially important when ide...

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