General information on repair work



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.



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.

The objectives of the repair are:

Detect and assess causes of malfunction

Rectify faults and restore operational readiness

Repairs to the product may only be performed by the manufacturer or specialist personnel instructed on the system.

Work on electrical system parts may only be performed by a qualified electrician.

Before beginning work, the pressure control panel must be purged (see "Flushing through to the process"). After completing the works, a re-commissioning process must be carried out (see "Commissioning").