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Operation Manual / TPL67-C.. - TPL71-C..
8 Disassembly and assembly / 8.6 Dismantling and installing the tur-
bine diffuser and nozzle ring
Removing the nozzle ring
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CAUTION
After the turbine diffuser has been removed, the nozzle ring (56001) is
only clamped lightly with the gas outlet casing. By pulling forward, the
nozzle ring (56001) is released and can fall down.
Pull nozzle ring (56001) forward and remove.
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Qualitative requirements for the nozzle ring area in HFO operation
¡
Coverage of one or more nozzle ring blade pitches by more than 50%
respectively is not permitted.
¡
The surface reduction of the nozzle ring due to contamination may
be no more than 15%.
Installing the turbine diffuser and nozzle ring
Install the nozzle ring and turbine diffuser in the reverse order of re-
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moval.
Coat the screw threads with high-temperature grease.
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Align nozzle ring with holes or cams in gas inlet casing.
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HZTL2488_EN
Rev.G
March 2020
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