Steam Turbine Maintenance Schedule Maintenance Turbine
Steam Turbine Maintenance Schedule Maintenance Turbine
Steam Turbine Maintenance Schedule Maintenance Turbine
Maintenance Turbine
Frequency
h = hourly
Parameter
d = daily
Activity Work to be performed measured Remarks
w = weekly
No. or tested
m = monthly
y = yearly
1. Cleaning of sliding Visual 1m
surfaces inspection
casing supports
spacer bolts and discs
for bearing pedestals and
turbine casings
2. Cleaning of turbine blading measurement as indicated by The criteria
by flushing through with of ηi criteria indicating stage
saturated steam as pressure when
prescribed in 6.3-0070 saturated steam
flushing is
necessary are the
internal efficiency
ηi and the stage
pressures
3. Preservation of turbine relative continuous During shutdowns
using air drying equipment humidity in lasting longer than
as prescribed in 6.2-0360 turbine < 50% 1 week
4. Lubrication of components as prescribed in
of the turbine control and 6.1-0690
turbine protection systems
5. Tightening of turbine 1m
control valve packings
6. Tightening of valve stem 3m or in the
seals event of
leakages
7. Lubrication of valve stems as prescribed
6.1-0690