Safety Regulations
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03_0028_0609GB
It is essential that correct high-pressure hoses be carefully selected
and handled correctly to maintain the operational safety of the high-
pressure cleaners.
Observe the following rules when handling high-pressure hoses:
-- Only use high-pressure hoses that are designed to withstand the
permitted operating overpressure.
-- High-pressure hoses should only be connected by qualified per-
sonnel.
-- High-pressure hoses must be laid and secured in such a way as to
minimise any dangers.
-- High-pressure hoses must consist of functioning hoses and con-
nections that are compatible with one another.
-- High-pressure hoses must not be painted.
-- Depressurise the high-pressure hoses after operating the ma-
chine.
-- Do not crush high-pressure hoses or guide them over sharp
edges. Avoid tensile and bending stress.
-- High-pressure hoses must be stored free of kinks and tension.
High-pressure hoses are wear parts with a limited service life. They
should therefore be replaced at appropriate intervals according to
the operating conditions, even if there are no obvious visible external
defects.
High-pressure hoses must be replaced should the following defects
occur:
-- Chafe marks, cuts or cracks that pierce the outer layer and reach
through to the wire infill.
-- Embrittlement of the outer layer (crack formation) due to improper
storage.
-- Storage time and usable service life have expired. As a guide
value, DIN specifies 6 years plus a maximum of 4 years previous
storage time for an unconnected hose.
-- Leaks in the hose and at the connection point.
Continued on following page
High-pressure hoses
