Weichai America Corp.
56
Fig. 5-5 Measuring of axial end play
3. Check radial play of compressor impeller
Press down or hold the compressor impeller by hand in the radial direction, and use the feeler
gauge to measure the min/max clearances between the compressor impeller and compressor
casing as shown in figure5-6. The value shall be in the range of 0.4~0.8mm; if this value is
exceeded, check the bearing and eliminate the failures.
Note: Measurement shall be carried out at cold state.
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