Axial Clearance - ABB HT843754 Operation Manual

Operation Manual / TPL69-A10 / -A30 ... TPL77-A10 / -A30
8 Disassembly and assembly / 8.4 Axial clearance

8.4 Axial clearance

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WARNING
Physical hazards due to sharp edges on compressor wheel
The compressor wheel has sharp edges which can result in injury.
Wear safety gloves.
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Wear safety gloves to protect against mechanical hazards.
Screw on at least four nuts (74027) together with washers (74018),
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equally spaced around the circumference, and tighten them to secure
the partition wall axially.
Measure and note the axial clearance (A).
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Axial clearance
Clearance A [mm]
CAUTION
Clearances out of tolerance
Clearances out of tolerance and excessively worn components can be
the cause of serious damage to machinery and property.
Have components assessed and, if necessary, replaced by an ABB
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Turbocharging Service Station.
HZTL2481_EN
TPL69-A TPL73-A
0.33 ... 0.50 0.36 ... 0.53
TPL77-A
0.39 ... 0.57
Revision C May 2018