Instruction manual

LG400 – Operating Instructions
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should remove the compressed air cylinder so that the system is no longer under
pressure. This prolongs the life of the seals. We accept no responsibility for any
damages arising from alteration of parts, use of parts other than original Walther
parts or failure to follow the operating instructions.
Service life
The maximum permissible service life of compressed air cylinders made by Carl
Walther GmbH & Produktions KG depends on whether they are made of aluminum
or of steel.
Service life of compressed air cylinders made of aluminum:
Past experience and further testing using the latest technology available indicate
that the manufacturer-specific service life of aluminum compressed air cylinders
should be limited to 10 years. This ensures a maximum degree of safety for users
and third parties.
Out of concern for users and third parties, we cannot recommend prolonging the
service life of aluminum cylinders through “reconditioning” or “inspection” that
involves pressure tests but does not include investigation of their internal structure
(especially microstructure). In view of the many years of stress on the material
(including especially possible damage, alteration and improper use), such tests
cannot give a 100% guarantee that aluminum cylinders are safe to use for an
extended period.
For this reason, compressed air cylinders made of aluminum must not be used if
they are more than 10 years old (according to the manufacturing date shown on
the cylinders). Empty them in a safe manner.
Service life of compressed air cylinders made of steel:
For compressed air cylinders made of steel, a limited service life of 10 years also
applies. Owing to their different characteristics, the manufacturer provides the
option of retesting them after 10 years. If no defects are discovered in this test, the