Wilo Stratos GIGA Einbau- Und Betriebsanleitung Seite 146

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Fig. 47: Positioning the forked spacer
146
Installation
1. Press a new mechanical seal stationary ring with collar into the gasket seat of the lan-
tern flange. A commercially available dishwashing liquid can be used as a lubricant.
2. Install a new O-ring in the groove of the O-ring seat of the lantern.
3. Check the coupling sliding surfaces, if necessary, clean and slightly oil them.
4. Pre-install the coupling shells on the pump shaft with spacer shims inserted in
between and insert the pre-assembled coupling shaft unit carefully into the lantern.
5. Pull a new mechanical seal onto the shaft. A commercially available dishwashing liquid
can be used as a lubricant (if required, insert the key and the shim again).
6. Install the impeller with washer(s) and nut, countering at the impeller's outer diameter
while doing so. Avoid damage to the mechanical seal due to jamming.
7. Insert the pre-assembled lantern unit carefully into the pump housing and screw to-
gether. As you do so, hold onto the rotating parts of the coupling to avoid damage to
the mechanical seal.
8. Slightly loosen the coupling screws. Slightly open the pre-assembled coupling.
9. Install the motor using suitable hoisting gear and tighten the connection between lan-
tern and motor.
10. Push the forked spacer (Fig. 47) between the lantern and coupling. The forked spacer
must sit there without any play.
11. Slightly tighten the coupling screws (Fig. I/II, Item 1.41) first until the coupling half shells
are in contact with the shims.
12. 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.
13. Remove the forked spacer.
14. If present, attach the pressure measurement lines of the differential pressure sensor.
15. Install the coupling guard.
16. Reattach the mains connection and, if present, the cable of the differential pressure
sensor.
NOTICE
Observe the steps for commissioning (see "Commissioning" section).
17. Open the shut-off devices upstream and downstream of the pump.
18. Reset the fuse.
Installation and operating instructions • Wilo-Stratos GIGA, Wilo-Stratos GIGA B • Ed.01/2023-05