ABB TPL73-A30 - Table of tightening torques

Operation Manual / TPL69-A10 / -A30 ... TPL77-A10 / -A30
Disassembly and assembly
8
Dismantling and fitting nozzle ring at
turbine end
8.8
Page 118
© Copyright 2016 ABB.
All rights reserved.
December 2016 HZTL2481_EN Revision B
Tightening procedure and order:
Segment connection

Begin with two middle screws of
individual segments and then
continue outwards alternately.
Flange connection

Tighten screws crosswise
NOTICE
Screw tightening sequence
The screw positioning numbers must be marked on the component.
This enables simple and efficient tightening.
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
TPL69-A
TPL73-A
TPL77-A
Step 1 Screw in all screws hand-tight
Step 3
260
370
480
 Beginning with screw 1, tighten all screws in a clockwise direction with
tightening torque from step 3.
 Remove lifting gear from gas inlet casing (51001).
 Connect cleaning pipe (if present) and attach insulation to gas inlet
casing (51001).
Tightening torques for
screws (61044) [Nm]
with spiral-wound gasket
Tightening torques for
screws (61044) [Nm]
without spiral-wound gas-
ket
Checking the tightening
torque