Exchange of mechanical seal, extended shaft version (Fig. 2)
Removal:
– Switch off power supply to pump motor and secure against
unauthorized switching on.
– Close isolating valves at both pump ports,
– Remove terminal wiring, if cable too short,
– Undo motor flange nuts (Item 11) and remove motor with im-
peller and rotating seal parts from motor housing,
– Remove circlip (Item 7) from shaft end,
– Remove impeller (Item 2) from shaft,
– Remove distance ring (Item 6) from shaft,
– Remove rotating seal parts (Item 5)from shaft,
– Remove stationary seal ring from its seat in the motor flange
and thoroughly clean seat face,
– Thoroughly clean part of shaft.
Re-Assembly:
– Refit new stationary seal ring into motor flange,
– Refit new rotating seal parts (Item 5) onto shaft,
– Refit distance ring (Item 6) onto shaft,
– Refit impeller (Item 2) to shaft end,
– Fit new circlip (Item 7) to shaft end,
– Fit new O-ring gasket (Item 8),
– Refit motor complete with impeller and mechanical seal onto
pump housing and secure with flange bolts (Item 11),
– Rewire power leads to motor terminals,
– Open isolating valves at both pump ports,
– Restore power supply,
– Repeat measures as for commissioning (Chapter 6).
DEUTSCH
10
Technical modifications reserved!
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