Wilo -Stratos GIGA2.0-I Einbau- Und Betriebsanleitung Seite 228

en
Fig. 98: Pressing off the motor impeller unit
via threaded holes
228
through the drilled hole in the lantern (Fig. I, Item 36) into the pump housing (Fig. I,
Item 24).
NOTICE
When attaching the lifting equipment, avoid damaging the plastic parts
such as the fan wheel and module upper part.
11. Loosen the screw (Fig. I/III, Item 10) that holds the holder of the differential pressure
sensor. Pull the differential pressure sensor (Fig. I, Item 8) with the holder to the side
and suspend it from the pressure measuring lines (Fig. I, Item 7). Disconnect the con-
nection cable of the DPS in the electronic module or loosen and remove it from the
plug connection.
NOTICE
An offset wrench or socket wrench with ball head is best suited for un-
screwing the screws (Fig. I/III, Item 10), especially for pump types with
limited space available. We recommend that you use two mounting
screws (see section "Turning the motor impeller unit" [} 141]) instead of
two screws (Fig. I/III, Item 10) which are screwed in diagonally to each
other in the pump housing (Fig. I, Item 24). The installation bolts make it
easier to avoid damaging the impeller when dismantling the motor im-
peller unit and then reinstalling it.
12. For pump type (Fig. III), loosen the screws (Item 29). Use the two adjacent threaded
holes (Fig. 98, Item 1) and use suitable screws provided on-site (e.g. M10 x 25 mm). Pull
the motor impeller unit off the pump housing.
1
For pump type (Fig. I and Fig. II), use the two threaded holes M10 (see Fig. 99) and use
suitable screws provided on-site (e.g. M10 x 20 mm). The slots (Fig. 99, Item 2) can also
be used for pressing off.
For this, apply two screwdrivers and use them as a lever, for example. After pressing out
by about 15 mm, the motor impeller unit is no longer guided in the pump housing.
NOTICE
In order to avoid tipping, the motor impeller unit may have to be supported
with suitable lifting equipment. This is especially the case if no mounting
bolts are used.
13. Release the two non-detachable screws from the protective plate (Fig. I and Fig. III,
Item 27) and remove the protective plate.
⇒ Version with plastic impeller and cone connection
Installation and operating instructions • Wilo-Stratos GIGA2.0-I, Wilo-Stratos GIGA2.0-D • Ed.02/2022-07