Rotax 914 series Maintenance Manual page 86

3.12) Periodic rise and fall in boost pressure and speed (vibration of
turbo control unit)
General note
Step
1
2
Effectivity: 914 Series
Edition 2 / Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
Danger of serious injury!
WARNING WARNUNG
The engine must not be put into operation until the
cause has been ascertained and the fault remedied.
If the permissible operating limits are exceeded or val-
NOTICE
WARNUNG
ues fall below the minimum, the corresponding checks
must be also be carried out.
Periodic rise and fall in boost pressure and speed
Visual inspection of the engine, in particular
- Turbocharger
- Air intake system
Check wiring. See 12-20-00 section: 16.1).
NOTE:
Procedure
If no mechanical damage is detected during the visual in-
spection, check the boost pressure control.
See chap. 76-00-00 of the Heavy Maintenance Manual
05-50-00
page 22
January 01/2010