Wilo Yonos GIGA2.0-I Einbau- Und Betriebsanleitung Seite 133

6.4.4 Turn of the drive
Installation and operating instructions • Wilo-Yonos GIGA2.0-I/-D • Ed.01/2023-03
8. Screw in the screws (Fig. I/II/III, Item 29) evenly crosswise, but do not tighten them yet.
CAUTION
Damage due to incorrect handling!
Not screwing the screws in properly can lead to sluggishness of the shaft.
While screwing in the screws, check the rotatability of the shaft with a
socket wrench on the fan wheel of the motor (Fig. 5). If necessary, loosen
the screws again and tighten them evenly crosswise.
9. Clamp the holder (Fig. I, Item 13) of the differential pressure sensor under one of the
screw heads (Fig. I/III, Item 29 and Fig. II, Item 10) on the side opposite the electronic
module. Find optimum between laying the capillary tubes and DPS cable. Then tighten
the screws (Fig. I/III, Item 29 and Fig. II, Item 10).
10. Reconnect the connection cable of the differential pressure sensor (Fig. I, Item 8) or re-
store the plugged connection on the differential pressure sensor.
When reinstalling the differential pressure sensor, bend the pressure sensing lines as little as
possible and evenly into a suitable position. Do not deform the areas at the clamp boltings.
To achieve optimum guidance of the pressure sensing lines, the differential pressure sensor
can be separated from the holder (Fig. I, Item 13), rotated 180° around the longitudinal axis
and re-installed.
NOTICE
If the differential pressure sensor is turned, do not interchange the dis-
charge and suction sides on the differential pressure sensor!
For additional information about the differential pressure sensor, see
"Electrical connection" [" 140] 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.
Turning the drive is only possible for versions according to Fig. II.
For the versions according to Fig. I and Fig. III, only turning the motor impeller unit is pos-
sible. See "Turn of motor impeller unit" [" 131] section.
NOTICE
The following work steps provide for dismantling of the mechanical seal.
In individual cases, the mechanical seal and the lantern O-ring may be
damaged. We recommend 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. 6/7).
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 of the holder
(Fig. I, Item 13).
4. Loosen and remove the screws (Fig. II, Item 29).
NOTICE
To unscrew the screws (Fig. II, Item 29), use an open-end spanner, angle
spanner or socket wrench with ball head, depending on the type.
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