Wilo Stratos GIGA Betriebsanleitung Seite 116

English
Screw tightening torques
Component
Impeller
—
Shaft
Pump housing
—
Lantern
Lantern
—
Motor
116
22. Pull a new mechanical seal onto the shaft. A commercially availa-
ble dishwashing liquid can be used as a lubricant.
23. Install the impeller with lock washer and nut, countering at the
impeller's outer diameter while doing so. Avoid damage to the
mechanical seal due to jamming.
NOTICE:
For the following steps, observe the screw tightening torque speci-
fied for the respective thread type (see Table "Screw tightening tor-
ques" below).
24. Insert the pre-assembled lantern unit carefully into the pump
housing and screw together. As you do so, hold onto the rotating
parts of the coupling to avoid damage to the mechanical seal.
Observe the specified screw tightening torque.
NOTICE:
If a differential pressure sensor is installed on the pump, fix it in place
again when you fasten the lantern screws.
25. Slightly loosen the coupling screws. Slightly open the pre-assem-
bled coupling.
26. Install the motor using suitable hoisting gear and tighten the con-
nection between lantern and motor.
27. Slide the forked spacer (Fig. 6, Item 10) between the lantern and
coupling. The forked spacer must sit there without any play.
28. First, slightly tighten the coupling screws until the coupling half-
shells are in contact with the shims. Afterwards, screw the cou-
pling together evenly. In doing so, the specified distance between
the lantern and the coupling of 5 mm is automatically adjusted via
the forked spacer.
29. Remove the forked spacer.
30. If present, attach the pressure measurement lines of the differen-
tial pressure sensor.
31. Install the coupling guard.
32. Mount the electronic module.
33. Reattach the mains connection and, if present, the cable of the
differential pressure sensor.
NOTICE:
Observe the measures for commissioning (chapter 9 "Commissioning"
on page 109).
34. Open the shut-off devices upstream and downstream of the
pump.
35. Reset the fuse.
Fig./Item Threaded
Screw (nut)
M10
Fig. 6/Item 1.11 M12
M16
Fig. 6/Item 4 M16
M10
Fig. 6/Item 5+6 M12
M16
Tightening torque Installation
Nm ± 10 % information
(if not otherwise
specified)
30
60
100
Tighten evenly and
100
diagonally
35
60
100
WILO SE 03/2018