New Holland BR6080 Operator's Manual page 148

7 - MAINTENANCE
1. Hydraulic hoses are an important safety element in
modern machinery. However hose characteristics
under pressure, thermal heat and UV light over the
years deteriorate.
Therefore hoses are now identified with a date
printed on the hose or a band which enables age
identification.
Legislation in certain countries and good practices
require that the hydraulic hoses are replaced when 6
years old.
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