Operation Manual / TPL65-A32 / -A33 / -A36 + TPL69-A32 / -A33Maintenance 5Foreword to Maintenance 5.1 Page 47© Copyright 2016 ABB. All rights reserved.November 2016HZTL2498_ENRevision BMaintenanceForeword to Maintenance5.1Maintenance and servicing work involves regular visual checks and clean-ing to ensure that the turbocharger and its attached units function trouble-free. The external condition and how dirty the cleaning points specified inthis chapter are, must be established by visual checks at the specifiedintervals. The safety precautions must be observed during all maintenance andservicing work.The cleaning points described in the following are: Filter silencer Compressor Turbine and nozzle ring55.1