Axial Clearance A And Radial Clearance B; Table 38 Permissible Clearances A And B - ABB A145-M56 Operation Manual

Operation Manual / 4 Product description / A130-M.. - A145-M..
8 Dismantling and fitting
8.11

Axial clearance A and radial clearance B

Measure and record clearances A and B after the removal and before the installation of the

cartridge group.
Attach the dial indicator and align it for the respective clearance as per the illustration.

Figure 43: Measuring clearance A and B
Product
A130
A135
A140
A145
Table 38: Permissible clearances A and B
1. Move the rotor to and fro up to the stop. In order to obtain a correct measurement, elevate
the turbine a little.
2. Measure clearance A and compare it with the permissible values in the table.
3. Raise the compressor and push the turbine down at the same time.
4. Raise the turbine and push the compressor down at the same time.
5. Measure clearance B and compare it with the permissible values in the table.
Clearances outside the tolerance
Serious damage to engines or property can be caused by clearances out-
side the tolerance and excessively worn parts.
CAUTION
Have the components assessed and, if necessary, replaced by an ABB

Turbocharging Service Station.
© Copyright 2017 ABB. All rights reserved.
A [mm]
0.08 ... 0.16
0.10 ... 0.18
0.12 ... 0.21
0.15 ... 0.25
HZTL4031_EN
Page 91 / 121
B [mm]
0.47 ... 1.00
0.58 ... 1.16
0.70 ... 1.37
0.88 ... 1.56
Revision E January 2017