Wilo Stratos GIGA2.0-I Notice De Montage Et De Mise En Service page 157

6.4.4 Turn of the drive
Installation and operating instructions Wilo-Stratos GIGA2.0-I, Wilo-Stratos GIGA2.0-D
Installation
To facilitate the optimal positioning of the pressure sensing lines, the differential pres-
sure sensor can be separated from the holder (Fig. I, Item 13), rotated by 180° around
the longitudinal axis and reinstalled.
NOTICE
If the differential pressure sensor is turned, do not interchange the pressure and
suction sides on the differential pressure sensor!
For additional information about the differential pressure sensor, see "Electrical con-
nection" [} 165] section.
The drive consists of a motor and an electronic module.
Turn of the drive relative to pump housing
The lantern position is maintained, the air vent valve points upwards.
NOTICE
The following work steps provide for dismantling of the mechanical seal. In indi-
vidual cases, the mechanical seal and the lantern O-ring may be damaged. We re-
commend that you order a mechanical seal service kit before turning.
An undamaged mechanical seal can be reused.
1. Leave two transport lugs (Fig. I, Item 30) on the motor flange.
2. Attach drive to the transport lugs with suitable lifting equipment for protection. To
prevent the unit from tipping, place a belt loop around the motor. When attaching,
avoid damaging the electronic module (Fig. 6).
3. Realignment may require reversing the orientation of the holder for the fixation of
the differential pressure sensor. To do this, loosen and unscrew both screws (Fig. I,
Item 13) of the holder.
4. Loosen and remove the screws (Fig. I and Fig. III, Item 10).
NOTICE
To unscrew the screws (Fig. I and Fig. III, Item 10), use an open-end spanner, angle
spanner or socket wrench with ball head, depending on the type.
We recommend that you use two installation bolts instead of two screws (Fig. I and
Fig. III, Item 10). The installation bolts are screwed diagonally to each other through
the pump housing (Fig. I, Item 24).
The installation bolts make it easier to avoid damaging the impeller when dismant-
ling the motor impeller unit and then reinstalling it.
WARNING
Danger of injury!
Installation bolts alone do not provide sufficient protection against injury.
• Never use without lifting equipment!
5. Loosen the screw (Fig. I and Fig. III, Item 10) to remove the holder for the differen-
tial pressure sensor (Fig. I, Item 13) from the motor flange. Suspend the differential
pressure sensor (Fig. I, Item 8) with the holder (Fig. I, Item 13) from the pressure
sensing lines (Fig. I, Item 7). Disconnect the connection cable of the differential
pressure sensor in the electronic module, if necessary.
6. Press the motor impeller unit (see Fig. 4) off the pump housing. Use the two
threaded holes for this (see Fig. 10). Screw M10 screws with a suitable length into
the threaded holes to loosen the seat.
7. Place the motor impeller unit including the mounted electronic module on a suit-
able workstation and secure it.
8. Release the two non-detachable screws from the protective plate (Fig. I, Item 27)
and remove the protective plate.
en
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