Measuring Radial Clearances N And R; Fig. 42: Measuring Clearances N And R; Table 50: Permissible Clearances N And R - ABB Turbo Systems Switzerland Power2 550-M44 Operation Manual

Operation Manual / Power2 550-M / High-pressure stage
9 Disassembly and assembly / 9.12 Measuring radial clearances N and R
9.12

Measuring radial clearances N and R

Fig. 42: Measuring clearances N and R
Clearance N
0.50 ... 0.80 mm
Table 50: Permissible clearances N and R
1. Push the feeler gauges (01) into the gap without clearance, and measure simultaneously
at the top (N1) and the bottom (N2).
2. Calculate clearance N and compare it with the permissible values in the table.
3. Push the feeler gauges (01) into the gap without clearance, and measure simultaneously
at the top (R2) and the bottom (R1).
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.
Have the components assessed and, if necessary, replaced by a Turbo
u
Systems service station.
© Copyright 2022 ABB. All rights reserved.
Clearance R
0.65 ... 0.95 mm
HZTL4058_EN Rev.F March 2022