Wilo EMUPORT FG/FS Einbau- Und Betriebsanleitung Seite 14

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As a cleaning cycle, we recommend:
Name
Inlet pipe
Pump maintenance
Collection reservoir
Emergency spillway
Solids separation reser-
voir
Separation system
Shut-off ball
Inlet slide valve
Filling level sensors
8.2 Cleaning the collection reservoir
Cleaning openings are provided in the collection
reservoir lid. These cleaning openings make it
possible to clean the collection reservoir or the
inlet distributor without shutting down the
pumping station. When the collection reservoir is
cleaned, the pipe inlet must be closed.
We recommend spraying the walls with a strong
water jet or high-pressure cleaner. The suction
ports on the floor are to be cleaned of deposits;
a mobile suction unit may have to be used.
The filling level sensors must not be damaged
during cleaning. Check the switching points.
8.3 Maintenance of the solids separation reservoirs
It is possible to perform maintenance on the sew-
age pumps in accordance with the "Operating and
maintenance manual" of the pump manufacturer
and to clean the solids separation reservoirs with-
out shutting down the entire system. The pump-
ing station can be operated then with only one
active pump unit (system side), and the other sys-
tem side undergoes maintenance.
This procedure is to be regarded as an emer-
gency operation. After maintenance, the system
must be immediately switched back to normal
operation.
8.3.1 Without slide valve on suction side
1. Disconnect the sewage pump undergoing
maintenance from electrical connection.
2. Close the gate valve by loosening the turn-
buckle (all the way) by turning it to the left.
3. Using a hand lever, press the slip cylinder
down as far as it will go. To make this proce-
dure easier, the lever can be moved back and
forth about the axis of the slip cylinder.
Relubricate the slip cylinder with Vaseline or an
acid-free grease.
4. Fix the turnbuckle for the stopping element by
turning it to the right.
5. The inlet to the relevant solids separation res-
ervoir is closed.
6. Pump out the collection reservoir by hand to
the minimum with the pump that is not under-
going maintenance.
12
Cycle The following items are to be performed
Every 3 months Checking and, if necessary, cleaning via the inspection opening; for type
FG/FS this can be done during operation.
Every 6 months Clean and check pumps per the "Operating and maintenance manual" of
the pump manufacturer.
Every 6 months See item "Cleaning the collection reservoir"
Every 12 months See item "Maintenance of the solids separation reservoir"
Every 12 months See item "Filling level control" – for filling level control at the works, the
level is to be controlled by hand when cleaning it in the collection reservoir.
7. Release the flange connection on the pressure
port of the sewage pump.
8. Turn it gently to the left and around about the
axis of the pump and pull it vertically up and
out of the "suction port seat".
9. Close the suction port seat with the adapter
pipe piece.
For the types with a check valve in the suction
port, the "suction port seat" is to be closed after
removing the pump. For this purpose, the
adapter pipe piece that came with the system is
to be inserted into the "suction port seat". This
adapter pipe piece is to be inserted vertically as
far as it will go by gently turning it to the right
and left about the axis. Then, the venting and
exhaust hose line is to be connected to the cen-
tral exhaust of the system (analogous to pump
exhausting). To make the procedure of inserting
the adapter piece easier, the outside periphery
of the pipe should be lubricated with acid-free
grease (e.g. Vaseline).
10. Perform maintenance and cleaning on the
sewage pump; see "Operating and mainte-
nance manual" of the pump manufacturer.
11. Perform maintenance of the solids separation
reservoir, the flap system and the shut-off
ball.
12. Release the flap carrier flange from the solids
separation reservoir (1 or 2 pieces depending
on type) and pull the flap carrier horizontally
out of the solids separation reservoir.
13. The resulting access to the solids separation
reservoir should be used both for cleaning the
solids separation reservoir and the separation
system and for removing the shut-off balls.
14. Check the roundness of the balls, e.g. visually
or by rolling them on a flat surface.
They should be replaced if:
- the balls are not round
- there is water inside the balls
- impressions can be seen through the
seal seat.
WILO SE 08/2008