Thursday, July 1, 2010

week no.4

 Pulverized coal (PC) leaking at flange located after PC cooling air damper. Therefore, the bolt and nut were tighten to seal the connection properly.

 Changed lube oil filter at unit 3 air heater guide bearing.

 Safety valve regular maintenance by outside contructers at boiler drum, reheater, and superheater. The purpose of safety valve is to release the system’s pressure in case of axcessive pressure.

 Did inspection at all unit 3 valves to check for leakage. A portable temperature gun was used to do the inspection.

 Disassembled blower carriage and puppet valve at unit 2 long retractable soot blower. The blower carriage and puppet valve was then brought back to workshop for servicing.

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