Gianneschi 01AAM513K, Руководство по эксплуатации

Страница: 18 / 26

18
3.1 MAINTENANCE
Before doing anything, ensure the machine is disconnected from the power source and
that there is no possibility of accidental connections.
These machines usually do not need any maintenance so long the following precautions are
taken:
-If there is a risk of freezing, it is necessary to empty the pump casing then fill the pump up before
it gets working again.
-Make sure the pump never works dry.
-On D.C. motors the brushes must be checked periodically for consumption and springs pressure.
-If the pump does not work for a long time it is better to empty the pump casing and clean it.
-If a filter and a foot valve are installed, check periodically their integrity and cleanness.
-The impeller never can’t be blocked. If it happens, a descaling of the impeller and casing pump
must never be done.
MECHANICAL SEAL
-
Purpose of mechanical seals is to retain handled product inside the pump in the area where
the shaft exits the pump casing.
-
To assure maximum reliability and safe operation Gianneschi Pumps and Blowers
evaluates seal choices at time of pump selection in connection with customer’s
requirements, application and liquid details.
-
Mechanical seals do not require maintenance until losses of liquid are visible.
-
Mechanical Seals should NEVER run dry.
-
It’s recommended to check the wear on seal faces every 1000 working hours.