Wilo CRONOLINE-IL-E Série Notice De Montage Et De Mise En Service page 119

Installation
Installation and operating instructions Wilo-CronoLine-IL-E, CronoTwin-DL-E, CronoBloc-BL-E
17. Clean the seating surfaces of the shaft carefully.
18. Press a new mechanical seal stationary ring with sealing collar into
the seal seat of the lantern flange. A commercially available dish-
washing liquid can be used as a lubricant.
19. Install a new O-ring in the groove of the O-ring seat of the lantern.
20. Check the coupling sliding surfaces. If necessary, clean and
slightly oil them.
21. Pre-install coupling shells on the pump shaft with spacer discs
inserted in between and insert the pre-assembled coupling/shaft
unit carefully into the lantern.
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 safety disk and nut, countering at the
impeller's outer diameter while doing so. Avoid damage to the
mechanical seal due to jamming.
NOTE:
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.
NOTE:
For BL-E pumps with ≤ 4 kW, the pump supporting foot must also be
reinstalled when refastening the screws.
NOTE:
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 spacer discs. Afterwards, screw the
coupling 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.
NOTE:
Observe the measures for commissioning (chapter 9 "Commission-
ing" on page 105).
34. Open the shut-off devices in front of and behind the pump.
35. Reset the fuse.
English
111