Task No. 25.1
Task: Gas cutting welding practices
Sub Task: Demonstrate safety
precautions while using gas cutting torch.
Aims:
1.
What are the safety
precautions needs to be following while using gas cutting torch.
Requirement for performing the task:
1.
Reference
theory from MEK text book.
Precaution
to be observed:
- Inspect equipment for leaks at all connections
using approved leak-test solution. - Inspect hoses
for leaks and worn places. - Replace bad
hoses. - Protect hoses
and cylinders from sparks, flames and hot metal. - Use a flint
lighter to ignite the flame. - Stand to the
side (away from the regulators) when opening cylinder valves. - Infrared
radiation is a cause of retinal burning and cataracts. Protect your eyes
with safety glasses. - Protect your
body from welding spatter and arc flash with protective clothing. - Be sure there is adequate
ventilation available when welding in confined areas - Always have a fire
extinguisher ready for immediate use
Task No. 25.2
Task: Gas cutting welding practices
Sub Task: Carryout surface preparation
prior gas welding/gas cutting Job.
Aims:
1.
How to carryout
surface preparation for gas welding.
2.
What are tools used
for surface preparation.
Requirement for performing the task:
1.
Reference theory
from MEK text book
2.
Chipping hammer
3.
Wire brush
4.
Hand grinder
Precaution
to be observed:
1.
Surface
should be free from oil and grease
2.
Remove rust
from surface.
3.
Grind the
surface.
4.
Don’t weld or
cut on container.