Operation &
Maintenance Manual
Pump
RW
782-001-GB
HSC
08-W36
Edition 4
13/32
6.2
INSTALLATION -V
Stationary wet installation with a ROBOT quick-release
guide bar coupling type -V. The pump is
automatically coupled to the discharge.
Except for the pump the following components are
necessary:
1. Bottom elbow, rubber joint and coupling
adapter;
2. Guide bar foundation plate
(n.a. for V-50 and V-65-S);
3. Two guide bars
(V-50 and 65-S coupling need only one guide bar);
4. Top bracket, mounted within the wellcover
clearance;
5. Level regulators for start-, stop- and alarm-
signals;
6. Suspension for level regulators and power
supply cables;
7. Piping, non return valve, discharge bends etc.
Checkpoints before operating:
-
The guide bars must stand vertical
(maximum tolerance 3
o
).
-
The installation angle should be :
RW20/RW40/RW60: 10-15
o
RW80: 5
o
(see Fig. 6.4). If necessary, this angle can be
changed by alteration of the position of the
lifting hook on the suspension bracket on top
of the motor (pos. 1).
-
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. 6.3).
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. 6.3).
Air in the discharge pipes might impair performance.
Fig. 6.3
Fig. 6.4
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