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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