Operation Manual / TPL65-A32 / -A33 / -A36 + TPL69-A32 / -A33Preliminary remarks 1Symbols and definitions 1.6 Page 13© Copyright 2016 ABB. All rights reserved.November 2016HZTL2498_ENRevision BSymbols and definitions1.6The following symbols are used in the documents: Prerequisite Step of a procedure List, first level- List, second level[➙ ] Refers to a page numberDefinition of notesNOTICENoteA note provides suggestions which facilitate the work on the product.Definition of mandatory signsMandatory signs show the protective equipment to be worn for a task. Themandatory signs are described in chapter Safety and must be compliedwith.Definition of caution / warningThe caution and warning signs are described in the chapter Safety.ABB Turbo SystemsIn this document, ABB Turbo Systems Ltd is abbreviated to ABB TurboSystems.Official ABB Turbo Systems Service StationsIn this document, official service stations are referred to as ABB Turbo-charging Service Stations. They are inspected and certified regularly byABB Turbo Systems. See also chapter Contact information [➙ 16].1.6