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H. Periodic maintenance
H 8. Maintenance every 4000 hours
H 8.1. Check turbo unit (not on all models) (44)
69---87
Inspection and reconditioning of the turbo unit should be
carried out by an authorized workshop.
For trouble free functioning make sure that the air and oil
filters are in good condition, that they are changed
according to schedule and that the fuel system is kept
clean. Note particularly that the air filter must be clean and
have good flow---through properties. Regularly check the
attachment of the turbo unit on the exhaust system and
the attachment of the intake and exhaust manifolds on the
turbo unit.
Vibration or abnormal engine noise are usual symptoms
of incorrect function of the turbo unit.
Where any defects are suspected, have the turbo unit
checked by an authorized workshop as soon as
possible.
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