Axial Clearance A And Radial Clearance B - ABB TPS48-F Series Operation Manual

Operation Manual / TPS44-F.. - TPS61-F..
8 Disassembly and assembly / 8.4 Axial clearance A and radial clear-
ance B

8.4 Axial clearance A and radial clearance B

Axial clearance A and ra-
dial clearance B [mm]
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Following removal and before installation of the cartridge group, the
u
axial clearance A and radial clearance B must be measured and noted.
NOTICE
In order to correctly measure the axial clearance A, the turbine must be
raised slightly.
WARNING
Risk of injury due to sharp edges on the compressor wheel
The compressor wheel has sharp edges which can cause injuries.
Wear safety gloves.
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Wear safety gloves to protect against mechanical hazards.
TPS44
A minimum 0.08
A maximum 0.16
B minimum 0.51
*
B maximum 1.00
*
* Permissible B clearances for standard radial bearings. If the clearances
measured on TPS57 or TPS61 are outside the permissible range, this can
indicate radial bearings with a special bearing geometry. Different per-
missible values are valid for radial bearings with a special bearing geo-
metry (see the table below).
HZTL2412_EN
TPS48 TPS52
0.08 0.10
0.16 0.18
0.50 0.61
1.00 1.15
TPS57 TPS61
0.12 0.15
0.21 0.25
0.72 0.81
1.31 1.55
Rev.G March 2020