Page 18 - CITS - Welder - Trade Theory

WELDER - CITS

viii Do no undertake any maintenance on Welding machine they are disconnected from main Supply unless.

ix Have all electrical Equipment inspected by a qualified electrician and defect should be eliminated before the
become serious.
xi Do not touch or handle any equipments of machine about which you have no idea.
Safety precautions in oxy acetylene gas welding and

cutting

Objectives: At the end of this lesson you shall be able to
• state various improper practices, while working in gas cylinders
• state different precautions to be taken for the gas cylinders.
• describe the safety precautions to be followed by handling gas cutting equipment
• explain the safety precautions to be followed by the operator
• state the safety required during gas cutting operation.

In Gas welding the welders must follow certain safety precautions, while handling plants in order to prevent
accidents to other and himself the following precautions will help the Gas welder to avoid accidents to a great
extent.
General safety in gas welding and cutting
i Never use oil or grease in any part or assembly of a gas welding plant as if may cause an explosion.
ii All inflammable materials should be kept away from the welding area.

iii Always wear goggles with proper filter lens during welding.
iv Wear fire resistant clothes, asbestos, gloves and Apron while welding.
v Never wear nylon or greasy clothes while Welding.
vi Rectify the leakages noticed immediately, even a small leakage can lead to serious accident.
vii Always keep fire extinguishing device handy and in working order

viii While leaving the work area, make sure that the palace is free from any fire.
ix Always use spark lighter for igniting blow pipe.
x “NO SMOKING” notices should be placed near the cylinder or Generator.
xi Never clean the nozzle or tip with iron or steel wire. A Special set of drills is available for this purpose. In the
absence of the nestle cleaning drills a copper or brass wire may be used.

Safety concerning gas cylinders in gas welding and cutting
i Do not roll Gas- cylinder for shifting. Always use a trolley to carry cylinders.
ii Do not drop the Gas cylinders.

iii Close the cylinder valves when not in use or empty.
iv Keep the empty cylinder and full cylinder separately.
v Always open the cylinder valve slowly and not more than one and half turns.

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CITS : C G & M - Welder - Lesson 1-3 CITS : C G & M - Welder - Lesson 1-3