ABB HT603545 Operation Manual page 115

Operation Manual / TPL76-C
8 Disassembly and assembly / 8.8 Dismantling and fitting nozzle ring
at turbine end
Tightening torques for
screws (61044) [Nm]
with spiral-wound gasket
Tightening torques for
screws (61044) [Nm]
without spiral-wound
gasket
Checking the tightening
torque
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Tighten screws (61044) in accordance with following procedure and in
u
following order:
Segment connection
Begin with two middle screws of individual segments and then con-
u
tinue outwards alternately.
NOTICE
Screw tightening sequence
The screw positioning numbers must be marked on the component.
This enables simple and efficient tightening.
Tightening
Step 1
Step 2
Step 3
Tightening
Step 1
Step 3
Beginning with screw 1, tighten all screws in a clockwise direction
u
with tightening torque from step 3.
Remove lifting gear from gas inlet casing (51001).
u
Connect cleaning pipe (if present) and attach insulation to gas inlet
u
casing (51001).
HZTL2485_EN
TPL76-C
Screw in all screws hand-tight
140
280
TPL76-C
Screw in all screws hand-tight
280
Rev.G March 2020