ABB TPL73-A30 - Page 117

Operation Manual / TPL69-A10 / -A30 ... TPL77-A10 / -A30
Disassembly and assembly
8
Dismantling and fitting nozzle ring at
turbine end
8.8
Page 115
© Copyright 2016 ABB. All rights reserved.
December 2016 HZTL2481_EN Revision B
Flange connection assembly
 Carefully clean grooves and contact surfaces on the casing and keep
them free of metal chips.
 Keep grooves and spiral-wound gasket free from oil and grease.
 Fix a
new
spiral-wound gasket (61050) using a little instant adhesive
("Loctite® 454 gel", for example) applied at three equally spaced
points in the groove.
 Fit nozzle ring and place holder (90175) over the nozzle ring. Then
tighten holder (90175) using screw (61044) and Verbus Ripp® washer
(61043).
 Align gas inlet casing and secure using hexagon nuts (90178) on
studs (90177).
 Insert and position nozzle ring.
 Remove holder (90175) and screw (61044) together with Verbus
Ripp® washers (61043).
 Coat thread of screws (61044) with high temperature grease.
 Fit gas inlet casing flange to gas outlet casing using finger-tight screws
(61044) and Verbus Ripp® washers (61043).
 Remove the hexagon nuts (90178) from the studs (90177).
 Replace the studs (90177) with hexagon-head screws (61044) and
Verbus Ripp® washers (61043).
1) If provided
TPL73 – TPL77
TPL69
TPL73 – TPL77