ZANDER HDK 50/100, Руководство по эксплуатации

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Maintenance work to be completed every 48 months
52 HDK350_EN_01_2005-05-10
Maintenance work to be completed every 48 months
To complete the following maintenance tasks, you must dismantle the pipe
bridges and the vessels. We therefore recommend that you carry out these tasks
together.
Note:
In accordance with national regulations, a pressure vessel inspection
may be prescribed to be carried out at regular intervals by an
independent supervisory office.
For an inspection of the pressure vessels, the drying agent must be
removed as described as follows.
When inspecting the pressure vessels, it is recommended to check the
condition of all fittings such as e.g. sieve bottoms and dust sieves,
including gaskets. If necessary, these fittings must be cleaned or
renewed.
In the event of comprehensive maintenance or repair tasks, contact
the manufacturer (see page 9).
Renew drying agent
The service life of the drying agent is usually approx. 3 to 5 years. However, in
favourable installation conditions, the change of drying agent may be carried out
at a substantially later date (for notes on the installation site, see also page 24).
The change interval depends very significantly from the degree of contamination
in the compressed air (or the quality of the compressed air upstream filters). Oil,
dust, and dirt particles cover the drying agent surface and reduce its effective
surface, in part quite irreversibly.
If in doubt, have a sample of your drying agent assessed by specialists. Send a
sample of approx. 200 g to the manufacturer (for address, see page 9).
Note:
The vessels are equipped with dust sieves that hold back drying agent
dust particles. If these dust sieves are blocked, back pressure is built
up, which might affect the proper functioning of the dryer.
We therefore recommend cleaning, or replacing, the dust sieves each
time the drying agent is replaced.
Comply with the following safety notes when changing the drying agent: