Maintenance | Operation Manual C 2214 |
21
9 Maintenance
Regular maintenance spares yourself a lot of trouble!
A maintenance contract is advisable.
If there are no rules/specifications (e.g. GUV-V D 5) or special annotations prescribing shorter maintenance
intervals, all chlorinators of the manufacturer have to be maintained and tested by an authorized specialist firm
at least once a year. Preferably this should happen at the beginning of a high-rate period, prior to a downtime
or a restart. Please make sure that the chlorine cylinders are closed before starting work on the chlorinator. The
plant must be evacuated using the ejector until the flow meter indicates zero.
The vacuum regulator is then dismantled, cleaned and parts subject to wear are exchanged. All other parts
are inspected visually and exchanged if necessary. The generally required parts subject to wear are included
in the maintenance kit (see „Maintenance kits“ on page 32). For cleaning the components, warm water
or isopropyl alcohol are perfectly suited. Before remounting the components, make sure that they are dry.
Gaskets and diaphragms should be wetted slightly using silicone grease. The seals on the inlet valve must be
dry when fitted. Pressure springs can be attacked chemically by humidity. This is why they are included in the
maintenance kit. Pressure springs must never be compressed completely for testing. Because this will result in
overstress. Use the tool set with article no. 35280 for service.
9.1 Dismounting of the complete vacuum regulator
First the inlet valve is separated from the plastic vacuum part by unscrewing the four screws. Then it is pulled
out of the PVC-part by rotating it. (More steps concerning the inlet valve see 9.1.3) The two screws at the
flow meter are unscrewed and the whole flow meter is lifted off the assembly pin also by rotating it (additional
information regarding measuring flow meter, see „Flow meter“ on page 23).
Fig. 11: Components of the full-vacuum chlorinator C2214
9.1.1 Dismounting of vacuum housing
At first the four screws of the vacuum housing (below the cover plate) are roughly 6 turns unscrewed and the
PVC housing is drawn apart in axial direction. Then unscrew the four screws completely and separate the two
housing halves.
NOTICE!
Important: do not upset the housing halves
For dismounting the diaphragm disk the thrust pin is pushed down and the retaining ring is removed using a
long nose plier.
