8
2.4 Ban on unauthorized modications or
alterations
• Unauthorizedmodicationsandalterationstothe
postliftarenotpermittedforsafetyreasons.
• Theoperatingpermitshallalsobedeemednull
andvoid.
• The Declaration of Conformity also becomes null
andvoid.
2.5 Experts, competent persons
Thepostliftmustbeinspectedaftercommiss-
ioningandatregularintervals(aftermax.oneyear),
aswellasafterdesignmodicationsorrepairofsup-
portingparts.Inspections may be carried out by
the following people:
Certied expert
Thesearepeoplewhohavespecialistknowled-
geintheeldofliftsbasedontheirprofessional
trainingandexperience.
Expertsshouldbeabletoinspectliftsandmake
anexpertassessmentthereof.
TÜVexperts,specialistengineersfromthemanu-
facturerorself-employedspecialistengineerscan
beusedforinspections.
Competent persons
Thesearepeoplewhohaveadequateknowledge
intheeldofliftsbasedontheirprofessionaltraining
andexperience.
Theyaresufcientlyfamiliarwithhealth&safety
andaccidentpreventionregulationsaswellaswith
lifttechnologyinordertobeabletoassessthe
occupationalhealth&safetycomplianceoflifts.
2.6 Maintenance contractors, installa-
tion staff
Maintenance,servicingandinstallationwork
may only be done by companies or specialists
authorizedbythemanufacturer.
Thesepeopletrainedintheeldofliftsareco-
mpetentpersons,whoaretrainedformaintenance
aswellasrepairwork.
Acompetentpersonisapersonwhohasadequ-
ateknowledgebasedonhisprofessionaltraining
andexperienceandisalsofamiliarwithkeyregul-
ationssothathe:
• Canassesstheworkassignedtohim,
• Canrecognizepotentialrisks,
• Cantakeactionsrequiredtoeliminatetherisk,
• Andhastherequiredknowledgeofrepairand
tment.
Thespecialistknowledgeofacompetentperson
must enable him to be in a position to
• Readandfullyunderstandcircuitdiagrams,
• Fullyunderstandthecontextwithparticularregard
toanyinstalledsafetyequipment.
• Possessknowledgeofthefunctionanddesignof
systemcomponents.
Simplefaultsonthepostliftmayberectiedby
operatingstaff.
Intheeventofamoreseriousfault,contactan
authorizedmaintenancecontractor.