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Operation Manual / Power2 650-M / 4.2 High-pressure stage
4 Disassembly and assembly / 4.7 Radial clearances N and R
© Copyright 2019 ABB. All rights reserved.
HZTL4066_EN
Revision A
March 2019
4.7
Radial clearances N and R
4.7.1
Measuring radial clearances N and R
Fig. 19: Measuring clearances N and R
Clearance N
Clearance R
0.50 ... 0.80 mm
0.65 ... 1.00 mm
Table 11: Permissible clearances N and R
1. Push the feeler gauges (01) into the gap such that there is no clearance. The upper direc-
tion (N1) and lower direction (N2) must be covered simultaneously.
2. Calculate clearance N and compare it with the permissible values in the table.
3. Push the feeler gauges (01) into the gap such that there is no clearance. The upper direc-
tion (R2) and lower direction (R1) must be covered simultaneously.
4. Calculate clearance R and compare it with the permissible values in the table.
CAUTION
Clearances outside the tolerance
Serious damage to engines or property can be caused by clearances outside
the tolerance and excessively worn parts.
u
Have the components assessed and, if necessary, replaced by an ABB Tur-
bocharging Service Station.
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