Operation Manual / TPS48-D/E.. - TPS61-D/E..
Radial clearances N and R
Page 112
© Copyright 2016 ABB. All rights reserved.
September 2016 HZTL2410_EN Revision E
Radial clearances N and R
8.5
These are the theoretical values of the radial clearance between the com-
pressor wheel and the wall insert and / or turbine wheel and the gas outlet
flange.
The minimum and maximum values result from the manufacturing toler-
ances of the compressor wheel and turbine wheel or the wall insert and
gas outlet flange.
N1 and N2 as well as R1 and R2 are
each measured at the same time using
two feeler gauges.
To measure N1 and N2, the feeler gaug-
es must be pushed between the wall in-
sert and the compressor wheel free of
play, in each case above and below.
To measure R1 and R2, the feeler gaug-
es must be pushed between the gas out-
let flange and the turbine free of play, in
each case above and below.
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