Wilo Stratos GIGA Serie Instrucciones De Instalación Y Funcionamiento página 57

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Fig. 45: Bleed valve
Fig. 46: Optional fixation of the motor
impeller unit
Installation and operating instructions Wilo-Stratos GIGA
6. Depressurize the pump by opening the bleed valve
(Fig. 45 Item 1).
7. Loosen the screws (Fig. 7, Item 1) and pull off the fan cover (Fig. 7,
Item 2) axially from the motor.
8. The spacers are to be turned out of the two drilled holes of the
transport eyes (Fig. 7, Item 20b). Be sure to keep the spacers or
screw them into the empty drilled holes after moving the trans-
port eyes (see step 9) (Fig. 7, Item 20a).
9. Remove the two transport eyes (Fig. 7, Item 20) from the motor
flange (Fig. 7, Item 20a) and attach them with the same screws to
the motor housing (Fig. 7, Item 20b).
10. Attach the motor impeller unit to the transport eyes with suitable
lifting equipment for the purpose of safeguarding.
NOTE:
When attaching the lifting equipment, avoid damaging the plastic
parts, such as the fan wheel and module upper part.
11. Loosen and remove the screws (Fig. 7, Item 3). Depending on the
pump type, the outer screws (Fig. 46, Item 3) are to be taken out.
The motor impeller unit (see Fig. 13) remains securely in the pump
housing after the removal of the screws; there is no danger of tip-
ping even in the horizontal position of the motor shaft.
8 NOTE:
An offset screwdriver or socket wrench with ball coupling is best
suited for unscrewing of the screws (Fig. 7, Item 3), especially for the
pump types with limited space available. It is recommended to use
two mounting bolts (see chapter 5.4 "Accessories" on page 10)
instead of two screws (Fig. 7, Item 3) which are screwed in diagonally
to each other in the pump housing ( Fig. 7, Item 14). The mounting
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bolts make it easier to avoid damaging the impeller when dismantling
the motor impeller unit and then reinstalling it.
12. When the screws (Fig. 7, Item 3) are removed, the differential
pressure sensor will also be released from the motor flange. Allow
the differential pressure sensor (Fig. 7, Item 5) with the holder
(Fig. 7, Item 6) to be suspended at the pressure measurement
lines (Fig. 7, Item 13).
Disconnect the connecting cable of the differential pressure sen-
sor in the electronic module.
English
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