Operation Manual / TPS44-F.. - TPS61-F..
8 Disassembly and assembly / 8.4 Axial clearance A and radial clear-
ance B
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HZTL2412_EN
Rev.G
March 2020
8.4 Axial clearance A and radial clearance B
u
Following removal and before installation of the cartridge group, the
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.
u
Wear safety gloves.
Wear safety gloves to protect against mechanical hazards.
Axial clearance A and ra-
dial clearance B [mm]
TPS44
TPS48
TPS52
TPS57
TPS61
A minimum
0.08
0.08
0.10
0.12
0.15
A maximum
0.16
0.16
0.18
0.21
0.25
B minimum
*
0.51
0.50
0.61
0.72
0.81
B maximum
*
1.00
1.00
1.15
1.31
1.55
* 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).
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