Operation &
Maintenance Manual
Pump
RW
782-001-GB
HSC
08-W36
Edition 4
15/32
6.4
INSTALLATION - F
Freestanding: semi-permanent fixed wet installation.
Except for the pump the following components are
necessary:
1. Hose or threaded connection, which is
fastened to the pump;
2. Flexible hose or pipe;
3. Pump support;
4. Level regulators.
Checkpoints before operating:
-
Adjust the start- and stoplevels in such a
way that the motor does not make more
than 20 starts per hour.
-
Check that the motor is adequately cooled.
The motorhousing should be at least 2/3 submerged
for continuous operation at full load (see Hmin.1
Fig. 6.8).
It is good practice, whenever possible to keep the
motorhousing completely under water.
For interrupted level controlled operation, less cooling
is required. We recommend not to run the pump with
the water level below the top of the volute in order to
avoid air being drawn in (see Hmin.2 Fig. 6.8).
Air in the discharge pipes might impair performance.
6.5
INSTALLATION - T
Transportable wet installation.
Except for the pump the following components are
necessary:
1. Hose connection, which is fastened to the pump;
2. Flexible hose;
3. Pump support.
Checkpoints before operating:
-
Do not let the pump bury itself in the mud.
-
Do not leave a large loop of the cable in
the sump, as the pump may eventually
damage it.
-
Check that the motor is adequately cooled.
The motorhousing should be at least 2/3 submerged
for continuous operation at full load (see Hmin.1
Fig. 6.9).
It is good practice, whenever possible to keep the
motorhousing completely under water.
For interrupted level controlled operation, less cooling
is required. We recommend not to run the pump with
the water level below the top of the volute in order to
avoid air being drawn in (see Hmin.2 Fig. 6.9).
Air in the discharge pipes might impair performance.
Fig. 6.8
Fig. 6.9
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