Preparing For Use; Diagrams And Drawing - EBARA 3E Serie Manual De Uso Y Mantenimiento

THE MANUFACTURER RESERVES THE RIGHT TO AMEND
TECHNICAL DATA FOR THE PURPOSE OF PRODUCT IMPROVE-
MENTS AND UPDATING.

5. PREPARING FOR USE

WARNING!
TO LIFT OR MOVE THE MOTOR-DRIVEN PUMP,
USE A ROPE STRONG ENOUGH TO TAKE ITS
WEIGHT, TAKING CARE NOT TO TILT THE PUMP
TOO MUCH (FIG 1);
5.1 INSTALLATION
To install the pump, proceed as directed in PART 1, chapter 7.2 and
in the following points:
- Use pipes of a suitable diameter, Suction pipe should be absolutely
airtight, with a diameter larger or equal to pump suction nozzle diam-
eter. (see chapter 4).
- Piping should always be connected to avoid any kind of stress to
pumps.
- The pumps can be installed on delivery or return pipes and in hori-
zontal and vertical position, provided the motor is never placed be-
low the pump to avoid water leakage into motor or bearings.(FIG 2)
(Note that vertical installation is possible for ≤7.5kW 2 Pole and
≤1.1kW 4 pole units)
- We recommend the use of gate valves upstream and downstream
the pump.
- Pump should not be installed in the lowest point of the system to
avoid settlements buildup.
- For a correct air bleeding it is necessary to fill up the whole system.
5.1.1 FOR MOTOR-DRIVEN PUMPS
For the units of 11kW and more, baseplate is essential, We recom-
mend to use a raised base plate which would make it easier to insert
a container underneath to catch a liquid when the pump casing needs
draining, and would double as a safety platform when the floor is in
danger of being flooded. When units are placed directly on the floor,
it is needed to set the base plate with anchor bolts in the concrete.
Please tighten the anchor bolt properly to avoid unwanted vibration.
5.2 PIPEWORK
To install pipes, proceed as directed in PART1, chapter 7 and in the
following points:
a) Do not fit the pump on misaligned pipes
b) Use a suitable support for the suction and delivery line
c) Install a non-return valve between the pump and delivery gate
valve in the following cases:
- when piping is long
- when actual head is high
- when the pump is automatic
- when water is pumped into the tank
- when two or more pumps are working it parallel
d) Additional valves on the pipes are recommended, in order to isolate
the pumps in case of maintenance
5.3 FILLING THE PUMPS
WARNING!
OPERATION TO BE PERFORMED WITH THE MO-
TOR'S TERMINAL STRIP FULLY CLOSED
a) Remove the plug/hexagonal cap located on top of the pump casing
(FIG 4);
b) With the aid of the funnel, fill the pump with water to overflowing;
c) Screw the plug/hexagonal cap back on until it is locked tight to pre-
vent air to get in
5.4 DISASSEMBLING MOTOR-DRIVEN PUMPS
All the parts of these pumps can be disassembled and inspected with-
out removing the pump casing and pipes.
To remove the motor/pump rotating part from the pump casing, pro-
ceed as follows:
- Remove the bolt between the pump casing and motor bracket and
simply remove the motor axially. Use any suited hoist when lifting/
moving the pump. (FIG 1)
Please be more attentive during disassembling when pumps are ar-
ranged in horizontal position. First give a support to motor before loos-
ening the bolts of the motor and pump casing.
For repairing, please send the pump to the manufacturer or to an au-
thorized shop.
5.5 HANDLING THE PUMP
During transportation, assembly and disassembly, keep the pumps on
a flat surface. Try to avoid slant surfaces or rough surfaces as much as
possible. If there is a slant surface, then it is highly recommend to use
base plate and properly set it with anchor bolt.
6. DIAGRAMS AND DRAWINGS
FIG.1: Lifting of 3E pumps with the help of rope
FIG 2: Installation of motor ≤ 7.5kW 2 pole and ≤ 1.1kW 4 pole
FIG 3: Installation of motor ≥ 9.2kW 2 pole and ≥1.5kW 4 pole
Plug Plug
FIG 4: Plugs required to check
the filling of pumps
Drain Plug
FIG 5: Drain Plugs on pumps
EN
5