Operation Manual / TPL69-A10 / -A30 ... TPL77-A10 / -A30
8 Disassembly and assembly / 8.8 Dismantling and fitting nozzle ring
at turbine end
© Copyright 2018 . All rights reserved. HZTL2481_EN Revision C May 2018
Tightening procedure and order:
Segment connection
u Begin with two middle screws of
individual segments and then
continue outwards alternately.
Flange connection
u Tighten screws crosswise
NOTICE
Screw tightening sequence
The screw positioning numbers must be marked on the component.
This enables simple and efficient tightening.
Tightening torques for
screws (61044) [Nm]
with spiral-wound gasket
Tightening TPL69-A TPL73-A TPL77-A
Step 1 Screw in all screws hand-tight
Step 2 130 190 240
Step 3 260 370 480
Tightening torques for
screws (61044) [Nm]
without spiral-wound
gasket
Tightening TPL69-A TPL73-A TPL77-A
Step 1 Screw in all screws hand-tight
Step 3 260 370 480
Checking the tightening
torque
u Beginning with screw 1, tighten all screws in a clockwise direction
with tightening torque from step 3.
u Remove lifting gear from gas inlet casing (51001).
u Connect cleaning pipe (if present) and attach insulation to gas inlet
casing (51001).
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