Operation Manual / TPS48-D/E.. - TPS61-D/E..
8 Disassembly and assembly / 8.4 Axial clearance A and radial clear-
ance B
© Copyright 2020 . All rights reserved. HZTL2410_EN Rev.F 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]
TPS48 TPS52 TPS57 TPS61
A minimum 0.08 0.10 0.12 0.15
A maximum 0.16 0.18 0.21 0.25
B minimum 0.50 0.61 0.72 0.81
B maximum 1.00 1.15 1.31 1.55
CAUTION
Clearances out of tolerance
Clearances out of tolerance and excessively worn components can be
the cause of serious damage to machinery and property.
u Have components assessed and, if necessary, replaced by an ABB
Turbocharging Service Station.
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