General information on maintenance



Noise emission

When working on pressurised pneumatic supply, significant noise emission can occur. Acute and chronic loss of hearing may result.

  1. Never perform work on the pressurised pneumatic supply without hearing protection.
  2. Only replace the silencers when the supply is unpressurised.



Incorrect operation

Incorrect operation of the system, e.g. due to instruction errors, can lead to personal injury or damage to the system.

  1. Access to the user manual by the operating and maintenance personnel must be absolutely ensured at all times.
  2. A copy of the system documentation including the user manual must therefore be kept either on the system or in a suitable and accessible location.



Working on the product

If an accident occurs when working on the product, there is a considerable risk of injury.

  1. Never work on the product unattended or unannounced.
  2. Observe the site safety rules and permission procedure.




Incorrect maintenance or maintenance work performed at the incorrect time can result in damage to the system or injury to persons.

  1. To avoid static charges, do not clean the product using dry cloths. Use damp cotton cloths.
  2. The maintenance intervals are to be specified by the system operator as part of its risk assessment.
  3. Observe the maintenance intervals and maintenance guidelines from the manufacturer and the applicable guidelines.
  4. Components may only be replaced by spare parts of the same design. The specifications of the component manufacturers must be complied with during installation.



Injury or damage in the event of incorrect assembly or disassembly

Special steps are required for assembly and disassembly work on the product. Personal injuries and damage to the product are possible.

  1. Assembly and disassembly work may only be carried out by the installation engineer or appropriately skilled specialist companies and persons.
  2. The product is not permitted to be re-used following disassembly. All components must be disposed correctly.




Incorrect switching actions or confusion can occur due to inadequate lighting.

  1. Ensure sufficient lighting in accordance with the statutory regulations.

Correctly performed and timely maintenance increases the service life, ensures availability and helps to avoid undesirable downtimes. Depending on the gas type, the components are subject to different maintenance intervals. Observe the stipulations from the applicable directives.

Servicing and maintenance measures are only permitted to be carried out by competent specialist companies and persons.

Maintenance work should be documented by the operator. The documentation should indicate who carried out which work and when (proof of maintenance).

It is only permitted to use original spare parts or equivalent spare parts as well as suitable tools:

The recommended maintenance and test intervals are to be observed! (Also observe the manufacturer's documents)

The causes of possible defects are to be investigated, e.g. damage, unusual noises, overheating, etc.

Before beginning maintenance work, the pressure control panel must be purged (see "Interruptions to operation for more than 48 hours"). After completing the works, a re-commissioning process must be carried out (see "Commissioning").