Spectron Gas Control Systems GmbH
Maintenance, cleaning and repairs | 7
G56-SP_0520
19
CAUTION
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.
a) Assembly and disassembly work may only be carried out by the installation engineer or ap-
propriately skilled specialist companies and persons.
b) The product is not permitted to be re-used following disassembly. All components must be
disposed correctly.
NOTICE
Lighting
Incorrect switching actions or confusion can occur due to inadequate lighting.
a) 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 spe-
cialist 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 manu-
facturer's documents)
The causes of possible defects are to be investigated, e.g. damage, unusual noises, overheat-
ing, etc.
Before beginning maintenance work, the pressure control panel must be purged (see "Interrup-
tions to operation for more than 48 hours"). After completing the works, a re-commissioning pro-
cess must be carried out (see "
").
7.2 Flushing the process gas into the pressure control
panel
1. Close all valves and fully depressurise the pressure regulator by turning the handwheel anti-
clockwise as far as it will go.
2. Open the process gas source valve and then the HPI valve, so to fill the entire area in which
the process gas is to penetrate (pressure build-up).
3. Now open valve PLI.
4. Slowly set the pressure regulator to the required outlet pressure.
In this process, the process source pressure and the gas type properties are to be taken into
account.
The pressure control panel is now in a condition ready for operation.
If operation is not to be continued following the flushing process, proceed in accordance with
"Gas supply interruption".
