Operation Manual / TPL73-B.. - 85-B11/ -B12
8 Disassembly and assembly / 8.10 Dismantling and fitting nozzle ring
at turbine end
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HZTL2480_EN
Revision D
July 2018
8.10.2
Threaded stud variant
Disassembly
u
Remove the insulation from the gas inlet casing (51001).
u
Loop lifting gear through lugs of gas inlet casing.
*) If present
Maximum admissible re-
lease torque
Part number
TPL73-B
TPL77-B
TPL80-B
TPL85-B
51087
350 Nm
490 Nm
665 Nm
840 Nm
If a threaded stud (51086) breaks off when loosening, an ABB Turbo Sys-
tems service station must be contacted.
If a threaded stud (51086) becomes loose when the nut (51087) is re-
moved, after disassembling the gas outlet casing it must be screwed
back into the gas inlet casing hand-tight as far as it will go.
If the nut (51087) cannot be removed with the maximum admissible re-
lease torque, the nut can be heated or removed using a suitable tool.
u
Treat nuts (51087) with rust remover.
u
Loosen all nuts (51087) crosswise and remove together with the Ver-
bus Ripp® washers (61043*). Pay attention to maximum admissible re-
lease torque.
u
Withdraw the gas inlet casing (51001) with nozzle ring (56001) far
enough out of the gas outlet casing (61001) for the holder (90175)
with the screw (61044) to be fitted from the outside. Tighten the
screw (61044) with a maximum of 10 Nm.
u
Remove remaining nuts and Verbus Ripp® washers.
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