Wednesday, May 26, 2010

Week 7, 18th May

I and other 2 trainees, Zul and Saw had been ordered by En. Rahimi to follow abang Munir to do the general air service compressor preventative maintenance. We check the air filter, lube oil filter and refill the lube oil as the running hour for the compressor had reached the limit.

Then, abang Munir explained to us that the function of the service air and instrument air and their differences. He also explained the flow of how dry, oil-free compressed air is produce.

The service air system provides compressed air at the required pressure and capacity for general plant use and as a backup supply to the instrument air system while instrument air system provides dry compressed air at the required pressure and capacity for all pneumatic valves, controls, transmitters, and instrument.

The flow of compressed service air

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