ABB HT603545 Operation Manual page 114

Operation Manual / TPL76-C
8 Disassembly and assembly / 8.8 Dismantling and fitting nozzle ring
at turbine end
Check
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Tightening of segment connection
NOTICE
Radial gas inlet casing with segment 51012
In the case of the radial inlet casing with segments, the segments are
positioned by a pin in the slot on the casing. The centering bolt (90177)
is always needed.
First place segment (51012) complete with roll pin on gas inlet casing,
u
fix it in correct radial position using centering bolt (90177) and then
fit it loosely using screws (61044).
NOTICE
In only one of the three segments is there a roll pin as an aid when posi-
tioning the gas inlet casing. This segment fits in only one position in
the gas inlet casing (note the circles in the illustration). Consequently,
begin with this segment.
Put remaining segments (51012) in place on gas inlet casing (51001)
u
and fit them loosely using screws (61044).
Replace centering bolts (90177) with screws (61044).
u
Collar (C) of segments (51012) must be in slot (S).
u
HZTL2485_EN Rev.G March 2020