Noises can be generated due to the vibrations mentioned, something touching the rotating parts, or the
nozzles of the turbine being partially blocked. Identify the source of the noise and undertake adequate
repairs.
Unusual noise emitted from the turbine
POWER HOUSE
CLANK
CLANK
Some components such as generators, bearings, belts and pulleys get heated due to faulty conditions.
By being familiar with the working temperature, you can identify whether it is overheated or not. The
following table gives possible reasons for overheating.
Table 1 : Possible reasons for overheating
Item
Possible Reasons
Bearing housing No grease / too much grease
Generator
Belt & Pulley
Belt too tight / misalignment
Bearing is too tight (sleeve adaptor type)
Cooling fan is blocked
Electrical fault in the generator or control
system
Belts too loose
Grease is smeared on belt or pulley
Remedy
Apply grease as specified by the manufac-
turer. If this has not been specified by the
manufacturer, grease in intervals of 4,000
hrs. If there is excess grease, remove the
excess grease.
Adjust the tightness / alignment
Adjust the bearing sleeve
Remove the fan casing and clean
Please refer to the following paragraph under
electrical equipments
Tighten the belt. Do not use old and new
belts together.
Clean the pulley and belt and get rid of
grease
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