Lukas R 430 - Manual (Page 10)

10
3.4 Labelling the hoses
3.5 Dates for inspections and replacement of hoses
- The hose is to bear the name of the manufacturer and the authorised operating
pressure.
- The press sleeve is to bear the maximum authorised operating pressure and the
manufacturers identifi cation and month / year of manufacture.
manufacturers identifi cation month / year operating pressure
3.6 Examples of possible defects of hoses
- After each use, inspect the hoses for external damage, tears, kinks and swollen
points!
- The operator is responsible for ensuring that the hoses are replaced at regular intervals,
even if there are no visible safety defects on the hoses.
- The hoses must be replaced 10 years after its manufacture (see labelling) at the
latest!
- Hoses are to be inspected by an expert to ensure that they are safe before they are
used for the fi rst time and then at least once per year. Please see the following for
possible defects.
An expert is somebody who, due to his professional education and experience, has suffi cient
knowledge in the fi eld of hydraulic hoses and who is familiar with the relevant national health
and safety regulations at work, guidelines and generally acknowledged technical regulations
(e.g. EN standards) such that he can assess the safe condition of the hydraulic hoses..
- Damage to the external layer through to the inside (e.g. abrasive spots, cuts or tears).
- Embrittlement of the external layer (formation of cracks on the hose material).
- Distortions not in line with the natural form of the hoses, in pressure-free or in pressurised
condition or bend, e.g. separation of the layers, blistering, squashed parts, kinks.
- Leaks.
- Installation requirements have not been complied with.
- Shifting of the hose from its fi tting.
- Damage or deformations to the fi tting which impair the function and stability of the fi tting
or the connection between the hose and the fi tting.
- Corrosion to the fi tting or metal insert which impairs the function and stability.
- Periods of storage and use have been exceeded.