Wilo IPL Notice De Montage Et De Mise En Service page 13

• Lower the pressure of the pump by opening the air vent plugs (pos. 9).
WARNING!
In the event of hot liquids.
• Remove terminal wiring, if cable too short,
• Remove setscrews of shaft coupling (pos.12),
• Remove motor flange bolts (pos. 13/14) and lift off motor,
• Remove adapter flange bolts (pos. 11) and remove adapter with stub shaft and
seal,
• Remove circlip (pos. 7) at impeller shaft end,
• Remove impeller (pos. 2) from stub shaft,
• Remove distance ring (pos. 6) from stub shaft,
• Remove rotating seal parts (pos. 5) from stub shaft,
• Remove stub shaft from adaptor
• Remove stationary seal ring from its seat in the adapter and thoroughly clean
seat face,
• Thoroughly clean seating part of stub shaft. If the shaft is damaged it must also
be replaced.
Re- Assembly:
• Refit new stationary ring,
• Refit stub shaft into adaptor,
• Refit new rotating seal parts (pos. 5) onto stub shaft,
• Refit distance ring (pos.6) onto stub shaft,
• Refit impeller (pos.2) to stub shaft,
• Fit new circlip (pos.7) at impeller shaft end,
• Fit new O-ring gasket (pos.8),
• Fit adapter complete with impeller and rotating seal into pump housing and
secure with holding- down bolts,
• Re-mount the motor and secure it with flange bolts (pos. 13/14),
• Slide assembly fork (pos.. A) between lantern and stub shaft. The assembly fork
must fit tightly.
• Fit shaft coupling to shaft ends and secure with setscrews (pos. 12), lock the
setscrew with Locktite.
• Remove assembly fork
• Rewire power leads to motor terminals,
• Open isolating valves at both pump ports and bleed air with air vent plugs
(pos. 9).
• Turn shaft by hand to insure no binding of any rotating parts.
• Restore power supply,
• Repeat measures as for commissioning.
9.2 Motor
Increasing bearing noise and undue vibrations indicate a worn bearing. The
bearing or the complete motor then needs replacing.
Installation and Operating Instructions Wilo-IPL
Risk of scalding!
English
13