Rotax MMH-912 Series, Руководство по обслуживанию

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78-00-00
page 12
July 01/2008
Effectivity 914 Series
Edition 1 / Rev. 2
d04356
BRP-Rotax
Maintenance Manual
3.3.3) Turbocharger
See Fig. 78-4 up to Fig. 78-14
Visual inspection of the turbocharger.
◆
NOTE: The turbocharger is handled as a complete unit, i.e. no
spare parts are available from BRP-Rotax. In the event
of damage, the complete unit has to be replaced.
a) Check plan surface of the tubine opening
See Fig. 78-4
Use a straight edge to test for distortion. A distortion of max. 0.1 mm
(0.004 inch)is allowed. If the max allowed distortion is exceeded then
it is possible to rework the surface up to 0.5 mm (0.02 inch). The amount
of the rework has to be recorded in the appendix.
b) Check threaded hole for damage
See Fig. 78-4
■
CAUTION: It is not allowed to repair any of the threads (2) inside of
the turbine housing with thread inserts.
c) Check rotor turbine for clearance
See Fig. 78-5
Apply slightly a radial pressure onto the shaft to minimize the gap
between the compressor casing and the compressor wheel. The gap
must never be less than 0.1 mm (0.004 inch). Check the complete
circumference of 360°.
Fig. 78-4
08463
1
2
TC03