Speck pumpen BADU 90 Série Instructions De Montage Et D'utilisation page 65

W 90.80.013
Use a screw-driver or similar tool to remove the crystals carefully from above
through the openings from the lantern (1). Remove the salt crystals that might
collect on the motor foot (2).
The motor shaft must be completely free of any salt crystals. Please check
whether the shaft rotates freely, to do so try rotating the motor shaft with a
screwdriver at the fan side. If it rotates easily, remove your tool and restore the
power supply.
7.6
CAUTION
Important hints for repair work
The exchange of the mechanical seal has to be done by an expert.
Dismantling
Replacement of the mechanical seal:
Switch off the pump and disconnect it from the power supply. The mechanical
seal always has to be replaced completely (433). To do so, it is not necessa-
ry to dismantle the complete pump, only the motor unit has to be removed from
the housing (101) by loosening the 8 tapping screws (900) with BADU 90/8-
90/20 or the 14 tapping screws (900) with BADU 90/25-90/48.
Removing of the impeller:
Take off the impeller cap (260) with o-ring (412.6) by unscrewing it. Separate
the impeller (230) from the motor shaft (800), by holding the impeller by hand
and screwing-in the screw, M 6 x 50 (BADU 90/7-13) respectively M 10 x 50
(BADU 90/15 and BADU 90/20).
The impeller of the BADU 90/25-90/48 is fitted onto the shaft.
Unscrew the cap nut (922) with o-ring (412.6). Remove the impeller (230.1)
from the motor shaft.
Assembly
Mounting of the new mechanical seal:
Slightly moisten the impeller hub (230) as well as the sleeve of the complete
lock ring with soap water. Press the mechanical seal (433) onto the impeller
hub regularly with both thumbs, with BADU 90/7-90/20 press the lock ring into
the gland housing (161.2). With BADU 90/25-9048 press the lock ring into the
intermediate flange (113).
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